JP2002157219A - Method and system for dealing with internet terminal of existent online application, server device and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To function a client application as an Internet application using a Web browser terminal without altering the host application of an existent online application. SOLUTION: This system is provided with a Web server 143 having a repetition service call contents 147 for calling a repetition service means by receiving a connection request from the Web browser of the terminal and a repetition service 110 which receives information from the host application, dynamically shapes the information into form displayable for the Web browser and transmits it to a Web browser 151 later. When the connection request from the Web application is received in the state of no synchronization of the pictures of the connection request from the Web browser and the picture of the transiting state of the present host application, a suitable picture managed by a synchronizing control means 135 is forcedly re-sent to the Web browser without initializing the job of the host application so that a synchronized normal state can be recovered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an online information processing system, and more particularly, to a method and system for supporting an existing online application on an Internet terminal, a server, and a recording medium.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. H11-203243 discloses, as an example of a conventional online application corresponding to an Internet terminal, an HTML that can be displayed on a Web browser by an execution control unit of a server machine.
(HyperText Markup Language) format screen, and the execution control unit receives an HTML format message corresponding to the transmitted screen,
A system that controls the operation of a host application of a host machine based on the contents of the message is disclosed.

However, this conventional technique has the following problems.

[0004] The first problem is that, when the operator uses a "return" function of redisplaying the previously received screen instead of the current received screen due to the screen cache function which is a characteristic of the Web browser, The screen cached in the previously received Web terminal, instead of the screen described above, will be retransmitted.

[0005] In this case, the synchronization between the Web browser screen and the host application is lost, and forced termination is the only unexpected exception.

[0006] The reason is that if the processing of the host application does not have means for returning from the screen after the transition from a certain screen to the screen before the transition, the host application is forcibly executed by event processing equivalent to the input instruction of the operator. This is because it is practically impossible to return to the screen before the transition.

[0007] The operation of transmitting a screen cached by a Web browser is very simple, and as a Web terminal on which the Web browser is mounted,
This is a standard operation.

Therefore, when there is no mechanism for guarding against such a problem, there is a problem that the work is restarted from the beginning, which is likely to cause inefficient results.

[0009] The second problem is that when the connection with the Web server is temporarily disconnected in the connected Web browser, it is determined whether the disconnection is temporary or intentional forced termination. If it is temporary, there is a problem that there is no general method for controlling the host application and the Web browser while continuing the work up to that time. This method is disclosed in Japanese Patent Laid-Open No. 11-20 / 1999.
No. 3243 does not deal with it.

Japanese Unexamined Patent Application Publication No. 11-212914 discloses an online business program as a system for improving the user interface of the online business program on the host computer without changing the online business program and without any additional description. For each screen to be displayed, hold text that instructs the browser what to display on the screen,
An online business processing system for synthesizing output data of an online business program in accordance with data indicated by a display attribute and transmitting the output data to a browser has been disclosed. A Web browser terminal is provided based on a prepared HTML screen template. Is generated efficiently.

[0011] However, in the online business processing system described in Japanese Patent Application Laid-Open No. H11-212914, not only the screen components to be displayed on the Web browser but also the destination where the Web browser transmits to the Web server are included in the template. It is expected that a control statement called <FORM> tag for specifying is also described, and inevitably a description that is conscious of screen transition is required in the template. Is
Lack of independence.

[0012]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems and to convert a client application into an Internet application using a Web browser terminal without modifying a host application of an existing online application. It is an object of the present invention to provide a method, an apparatus, a system, and a recording medium that function.

Another object of the present invention is to synchronize the business flow on the Web browser with the transition of the screen of the host application, and to initialize the business of the host application even when the synchronization is lost. A method, an apparatus, a system, and a recording medium that can be continued.

Another object of the present invention is to provide a method, an apparatus, a system, and a method for allowing a mobile terminal or the like having a minimum function of a Web browser to function as an Internet-compatible application without modifying a host application of an existing online application. It is to provide a recording medium.

[0015]

According to the present invention, which provides means for solving the above-mentioned problems, a cache function ("return" function) for displaying a cache screen immediately before a Web browser of a client terminal is used. When the business flow controlled above (referred to as “Web application”) is out of synchronization with the host application executed on the host machine connected to the server machine, the server machine Synchronous control is performed to return the screen of the Web application to the same state as the transition state of the host application.

According to the present invention, a server device connected to a terminal and a host machine includes relay service means for performing a relay service of a host application executed on the host machine, and the relay service means calls the relay service means. Is called through a relay service call content accessed by a Web browser running on the terminal, and the relay service means receives a request from a Web application and transmits the request to the host application. Sending and receiving, and transferring the output result of the host application to the relay service invocation content, wherein the relay service invocation content uses information that dynamically generates an HTML sentence to transmit the information received from the relay service invocation, The Web Dynamically shaped into a displayable format Uzza, via the Web server, sends to the Web browser of the terminal, the relay service means, the synchronization control unit via the relay service interface, the Web
Upon receiving a connection request from an application, the synchronization control means displays a screen transition state of the host application, synchronization with a connection request from the Web browser, and displays a cache screen immediately before the Web browser. When the connection request from the Web browser and the current screen transition state of the host application are not synchronized with each other, such as a reconnection by a “return” function, the host application The appropriate screen managed by the synchronization control unit is initialized without initializing
control means for forcibly retransmitting the message to the web browser to return to a synchronized and normal state.

[0017]

Embodiments of the present invention will be described. Referring to FIG. 1, in one embodiment of the present invention, a relay service 110 operating on a server machine 100 is provided.
Is called from the Web browser 151 operating on the mobile communication terminal 150 via the relay service calling content 147.

The relay service call content 147 is W
Dynamic HTML (HyperText) running on the web server 143
It is controlled by a Markup Language (generation) unit 145, and is started by a connection request for a specific URL (uniform resource locators).

The relay service call contents 147 include:
A description for calling the relay service 110 is provided. The called relay service 110 receives a request from the Web application, performs data cooperation with the host application 161, and delivers the result to the relay service call content 147. .

The relay service call content 147 uses the dynamic HTML generation means 145 to dynamically format the information received from the relay service 110 into a format that can be displayed on a Web browser. Send it to Web browser 151.

In the relay service 110, the synchronization control means 135 receives a connection request from the Web application via the relay service interface 139.

The synchronization control means 135 has a function of monitoring the synchronization between the screen transition state of the host application 161 and the connection request from the Web browser 151, and has a "return" function for displaying a cache screen immediately before the Web browser. When a connection request from the Web browser 151 and a connection request in a state where the screen is not synchronized with the current screen transition state of the host application 161 such as a reconnection are received, the operation of the host application 161 is initialized. By forcibly retransmitting the appropriate screen managed by the synchronization control unit 135 to the Web browser 151 without causing the synchronization, the synchronized normal state can be restored.

Also, the Web server 143 and the portable communication terminal 150
Even if the connection with the host application 161 is once disconnected and then reconnected, if the connection is recognized by the means for monitoring the synchronization between the host application 161 and the Web application, the server machine 100 and the mobile communication Terminal 15
The business can be continuously processed without making the host application 161 aware of the communication control between them.

The synchronization control means 135 has a function of issuing a Web application for authenticating an access right and selecting a business in response to an initial connection request, and after confirming the validity of the connection. Is operation procedure control means 133
And a function for notifying a response from the Web application.

The operation procedure control means 133 includes the synchronization control means 1
In response to an instruction from 35, the host application 161 is provided with a function of activating the host application 161 or identifying screen information generated by the host application 161 and controls execution of the operation procedure file 161 corresponding to the identified screen.

At this time, screen information received from the host application 161 and form variables as transmission information from the Web browser can be used in the control process of the operation procedure file 121.

In the execution control of the operation procedure file 121, an appropriate screen is instructed by using the intermediate HTML file 127, and a Web application is instructed to be generated via the synchronization control means 135 and the hypertext synthesizing means 135. At the same time, based on a response from the Web application, the host emulator 131 performs internal control equivalent to that operated by an operator on the host application 161 via the host emulator 131.

As described above, by using the relay service call content 147 and the relay service 110, it is possible to change the existing host application without changing the existing host application.
In addition to enabling a business program conventionally provided to be an Internet-compatible application using a Web browser, the business program does not satisfy the screen display capability expected by the host application 161 typified by an i-mode portable terminal. It can also be operated on a Web browser terminal.

In the present invention, the execution unit 130 of the relay service 110 of the server machine 100 is emulator means for performing (a) processing equivalent to the operation of the host application 161 being operated via an operator. (B) host emulator means 131 which is controlled by the operation procedure control means 133 and transfers screen information transmitted by the host application to the operation procedure control means.
From the received screen information of the host application, a screen is specified based on the screen information managed by the business file 123, the operation procedure file 121 corresponding to the screen is executed, and the information from the synchronization control unit 135 and the business Operation procedure control means 133 for instructing the host emulator 131 to start the host application 161 based on the business information managed by the file 123. It is written in a macro language whose execution is controlled by 133, controls the host emulator means 131 to give an instruction equivalent to that of the operator, and controls the synchronization control means 135 and the hypertext synthesis means 137. An instruction to generate a Web application screen is issued, and the host application 16
A procedure for performing control for transitioning the screen 1 is described. (C) The procedure from the operation procedure control unit 133 to the Web
Receives the information required to generate the application screen and hands it over to the hypertext synthesizing means 137,
b function to instruct generation of an application screen;
The screen transition state of the Web application controlled by the Web browser in response to the connection request from the application b and the screen transition state of the host application managed by the operation procedure control unit 133 are synchronized using the synchronization control information. If the synchronization is not achieved, the appropriate W
a synchronization control unit 135 including at least a function of instructing re-generation of the web application screen, and (d) generating a web application screen using information received from the synchronization control unit 135, and
9 includes a hypertext synthesizing unit 137 to be delivered to the server 9, (e) a relay service 110, and a relay service interface 139 for interfacing with another server service unit. Each function of the above-described units is realized by a program executed by a computer configuring the server machine 100. In this case, the program (executable module) is read from a recording medium (magnetic disk, optical disk, magnetic tape, semiconductor memory, or the like) on which the program is recorded, and is loaded into a main storage of a server computer and executed. From the storage of another device,
The relay service according to the present invention is implemented by transmitting the program to a server computer via a transmission medium such as a wired or wireless communication network, installing the program on the server computer, loading the program into main memory, and executing the program. be able to.

The relay service 110 of the server machine 100 specifies an operation procedure file 121, a business information file for managing settings for specifying a business and communicating with a host application, and specifying a business screen and performing a corresponding operation. To generate a business file 123 consisting of a screen information file for managing information for executing the procedure file, an authentication information file 125 for managing the access right of the host application to the business, and a screen for the Web application Intermediate H that is an HTML file that serves as a template for
A TML file 127 and a cache file 129 are provided as definition units.

The operation procedure file 121 includes a terminal screen generation instructing unit 501 (see FIG. 5) in which a procedure for generating a Web application screen is described in the case of a control requiring generation of a screen for a Web application, A host emulator control instructing unit that describes a procedure for analyzing a screen and for changing a screen of the host application based on a response from the Web application.
503 and a process that is called in priority when the system is forcibly terminated by the timeout process. In other cases, the process functions when it is explicitly called from the host emulator control instruction unit. A certain host emulator termination control instructing unit 505. The operation procedure file contains 1 as the screen ID managed by the business file 123.
They are associated with each other.

The relay service 110 has an authentication information file 125 for managing the access right of the host application to the business. The synchronization control means 135 comprises a management table in which the synchronization control ID is one record, and a synchronization control ID table in which the maximum number of session IDs, which is the number of simultaneous connections to the host application, is the record number (see FIG. 3). The synchronization control ID includes a screen ID, a page ID which is a management number for enabling the same screen of the host application to be displayed on a plurality of Web application screens, and A synchronization management ID consisting of a time at which a web application screen generation instruction was issued, and a management number for enabling a plurality of users to connect to the host application at the same time. Session ID and session ID generation time See Figure 3).

The synchronization control means 135 manages the access right to the host application using the information in the authentication information file 125 according to the state of the connection request from the Web application, and uses the business information in the business file to A function for instructing generation of a Web application screen for selecting a job and a synchronization management ID in a synchronization control ID management table are periodically verified, and synchronization management is performed in order to invalidate a session whose connectable time has passed. A function of deleting the value of the session ID generation time in the ID and calling a host emulator termination control instruction unit of the operating procedure file in operation or a termination operation procedure file name of the task information of the task file.

The hypertext synthesizing means 137 is
When generating an application screen, a designated intermediate HTM, except for a user authentication screen and a business selection screen
Using the L file 127, the intermediate HTML file is analyzed, converted into information required by the relay service call interface, and the result of analyzing the intermediate HTML file The same name as the HTML file is stored in the cache file for each session ID, and when an instruction to generate a screen using an intermediate HTML file that has been analyzed for synchronization processing is given, the information stored in the cache file is stored. Is used to convert the information to the information required by the relay service call interface.

Intermediate H used as association information between the host application screen and the Web application screen
In the TML file, the association between the screen of the host application and the Web application screen does not depend on the tag of the HTML syntax, but a specific name (a tag of the HTML standard may be used), and The association target range information based on the coordinates in the above and the association target range are
By adding attribute information on how to handle the application screen, the information on the host application screen is associated with the Web application screen.

According to the present invention, since the means for associating the screen of the host application with the screen of the Web application uses a means which is not restricted by the HTML language, it can flexibly cope with a browser display language other than the HTML standard. .

In the present invention, the synchronization between the host application and the screen of the Web browser is monitored, and when an asynchronous connection request is generated due to the cache function (return function) of the Web browser, an appropriate screen is displayed on the Web browser. It is configured to resend, even if the line between the Web server and the communication portable terminal is temporarily disconnected, it is possible to continue business after reconnection, and to realize synchronous processing. , A communication portable terminal, Cookie
It does not require the ability to hold terminal-specific information such as e (cookie). The Cookie (cookie) function is character string information (“Cookie”) used by a Web server that provides a customized service to identify a user.
Is generated and transferred to the Web browser, and the Web browser
When the customized service is accessed by the browser, the character string information is transferred to the Web server to recognize the user.

[0038]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 1 is a diagram showing a system configuration according to an embodiment of the present invention. Referring to FIG. 1, an embodiment of the present invention includes a host machine 160, a portable communication terminal 150 having a Web browser function, and a server machine 100 for relaying between the host machine 160 and the portable communication terminal 150. , Is configured.

The host machine 160 is operated by the OS 163 which is a device control unit, and provides a specific business flow by the host application 161. In this specification, all or a part of this business flow is referred to as “existing online application”. The mobile communication terminal 150 is an Internet client for the mobile communication terminal 150 in which the Web browser 151 is incorporated, and may include another input / output device such as a mail client 153. It is not essential that the mobile communication terminal 150 is a mobile device, and may be any device (terminal) in which the Web browser 151 is incorporated. In addition,
In this specification, a business flow controlled on the Web browser 151 is called a “Web application”.

The server machine 100 has a device control unit O
The operation is controlled by S140, and the Web server 143 and the dynamic HTML generation means 1 operating on the Web server 143
Including 45. Also, as shown in FIG.
Etc. may be included.

The relay service call content 147 is W
The operation is controlled by the dynamic HTML generation means 145 on the eb server 143.

The relay service call content 147 is W
Upon receiving a connection request from the web browser 151, the relay service 110, which is an object on the OS 140, is called, and a processing result of the relay service 110 with the host application 161 is received as a return value. Based on the result, the HTML content dynamically generated by the dynamic HTML generation unit 145 is transmitted to the Web browser 151.

The relay service 110 includes an execution unit 130 for performing execution control and a definition unit 120 for storing execution control information and the like. The execution unit 130 includes a host emulator 131, an operation procedure control unit 133, Synchronization control means 135, hypertext synthesis means 137, relay service interface 1
39, including.

The definition unit 120 is composed of a group of files stored in a storage device, and includes an operation procedure file 121, a business file 123, an authentication information file 125, an intermediate HTML
File 127.

Each of these means operates as follows.

The host emulator means 131 is an emulator means for performing processing equivalent to the operation of the host application 161 being operated via an operator. The host emulator means 131 is controlled by the operation procedure control means 133 and transmitted by the host application 161. The incoming screen information is passed to the operation procedure control means 133.

The operation procedure control means 133 converts the business file 1 from the received screen information of the host application 161.
The screen is specified based on the screen information 210 managed by 23, the operation procedure file 121 corresponding to the screen is executed, and the information from the synchronization control unit 133 and the business information 200 managed by the business file 123 are Based on the host emulator means 131
To the host application 161.

The operation procedure file 121 instructs generation of a screen for the Web application, waits for a response from the Web application, performs necessary processing according to the response from the Web application, and executes the screen of the host application 161. And the like, for controlling the transition of the data.

The operation procedure file 121 has a function of acquiring a character string, an attribute, coordinate information, and the like from the screen information and treating the information as a variable.

In the operation procedure file 121, the intermediate H
The generation of the Web application screen is also instructed by designating the file name of the TML file 127. At this time, the extension tag and the extension parameter used in the intermediate HTML file 127 to be used are analyzed, and the generation instruction destination is analyzed. ,
It has a function to provide necessary screen information.

The synchronization control means 135 includes an operation procedure control means 133.
, The information necessary for generating the Web application screen is received, and the received information is passed to the hypertext synthesizing unit 137 as it is to instruct generation of the Web application screen.

The synchronization control means 135 responds to a connection request from a Web application by a Web browser.
The screen transition state of the Web application controlled by 151 and the screen transition state of the host application 161 managed by the operation procedure control unit 133 are synchronized using the synchronization control ID 300 and the synchronization control ID management table 400. Guarantee that If the synchronization is not established, an instruction is issued to the hypertext synthesizing means 137 to regenerate an appropriate Web application screen.

Further, depending on the state of the connection request from the Web application, the synchronization control means 135 uses the information of the authentication information file 125 to execute the host application 1
Using the management of access rights to the application 61 and the operation information 200 of the operation file 123, an instruction is issued to generate a Web application screen for selecting an operation.

Further, the synchronization control means 135 periodically enables the synchronization management ID 305 in the synchronization control ID management table 400 by enabling the no-communication timer in the communication setting information 205 of the business information 200 of the business file 123. In order to invalidate the session 307 that has passed the connectable time, the value of the session ID generation time 309 is deleted, and the host emulator termination control instructing unit 50 of the operating procedure file 121 in operation is deleted.
5, or call the end operation procedure file name 209 of the business information 200 of the business file 123.

The end operation procedure file name 209 is called when the host emulator end control instruction section 505 of the operation procedure file 121 is not described.

The hypertext synthesizing unit 137 generates a Web application screen using the information received from the synchronization control unit 135, and transfers the Web application screen to the relay service interface 139.

To generate a Web application screen,
The designated intermediate HTML file 127 is used except for the screen for user authentication and the screen for business selection.

The intermediate HTML file 127 describes extended HTML tags for linking the screen information of the host application 161 and the screen information of the Web application. The hypertext synthesizing means 137 analyzes these and calls the relay service. The information is converted into information required by the interface 139.

Further, the hypertext synthesizing means 137
The analysis result is stored in the cache file 129 for each session ID 307 with the same file name as the intermediate HTML file 127.

Then, the hypertext synthesizing means 137
When an instruction to generate a screen using an intermediate HTML file that has been analyzed for synchronization processing is instructed, the information stored in the cache file 129 is used for information required by the relay service call interface 139. Convert to

The relay service interface 139 interfaces the relay service 110 with other services and devices. Web controlled by Web browser 151
The connection request from the application and the result are responded via the relay service call content 147 and the mail server 141.

Next, the definition unit 120 of FIG. 1 will be described. Except for the cache file 129, all appropriate information is registered in the definition unit 120 in advance.

The execution unit 130 operates based on the information set in the definition unit 120.

The operation procedure file 121 is a macro language whose execution is controlled by the operation procedure control means 133. The operation procedure file 121 controls the host emulator 131 to give an instruction equivalent to that of the operator, and the synchronization controller 135 and the hypertext synthesizer 137 execute a specific intermediate HTML file. Generation of the used Web application screen can be requested.

The operation procedure file 121 can also perform control using the form variables transmitted from the relay service call content 147.

The business file 123 is composed of business information 200 and screen information 210. The business information 200 is a file for specifying the business and managing settings for communicating with the host application 161. Screen information 210
Is a file for specifying information of a business screen and managing information for executing a corresponding operation procedure file.

The authentication information file 125 stores the synchronization control procedure 135
Is an authentication information file for managing the access right to the business of the host application 161 performed as necessary.

The intermediate HTML file 127 is an HTML file that serves as a template for the hypertext synthesizing unit 137 to generate a Web application screen. In order to link information of the Web application and the host application 161 to this HTML file, H
Includes unique extension tags and parameters that are not defined in the TML syntax conventions.

The extension tags and parameters described in the intermediate HTML file 127 are analyzed by the operation procedure control means 133 to link information between the Web application and the host application 161.

The intermediate HTML file 127 contains HTML
Only the information that should be described in the <BODY></BODY> tag of the syntax need be described. However, when building the system,
Considering the convenience of display confirmation by the intermediate HTML file 127 alone, tags such as <HTML></HTML> tag and <BODY></BODY> tag necessary for displaying with a general HTML file viewer It may be described. These tags are ignored when the Web application screen is dynamically generated, so that there is no problem.

Note that among the information to be described in the <BODY></BODY> tag, the <FORM> tag which is a control tag for information transmission in the HTML syntax and the transmission destination URL which is a parameter thereof are described. Regarding the action parameter, the hypertext synthesizing means 137 automatically
Generate or correct correctly. Therefore, intermediate H
Since the description of the control tag for information transmission is unnecessary in the TML file 127, the intermediate HTML file 127
There is no need to describe the transition between screens between Web applications.

The cache file 129 is a file for storing the result of the analysis of the intermediate HTML file 125 by the hypertext synthesizing unit 137 based on the information from the synchronization control unit 135, and the intermediate file managed for each session ID 307. The file has the same name as the HTML file 125.

Next, referring to FIG.
Will be described. Business file 123
Is one-to-one or one with host application 161
It stores and manages business information 200 for specifying Web applications having a many-to-many relationship and screen information 210 for managing a screen to which the host application 161 has transitioned.

The business information 200 includes a business ID 201 and a business name 20
3, communication setting information 205, initial operation procedure file name 207
And an end operation procedure file name 209, and there are as many as the number of Web applications registered in the system.

The business ID 201 is an identifier for uniquely identifying a business. The business name is the business name 203, and the communication setting information 205 is the host application 1 that provides the business.
It consists of information necessary for communication with 61 and various setting information unique to the business.

The initial operation procedure file name 207 is an operation procedure file name for starting the host application 161 and transiting to a specific business screen.

The termination operation procedure file name 209 is an operation procedure file name for terminating or forcibly terminating the host application 161.

The screen information 210 includes a business ID 201 and a screen ID.
It is composed of 211, an operation procedure file name 213, and a screen identifier 215. There are as many screens as need to be identified and managed for each task.

The screen ID 211 is a management number corresponding to the screen identification information 215 for identifying the screen, and the operation procedure file 213 is a file name of the operation procedure file 121 corresponding to the screen ID 211 on a one-to-one basis.

Next, referring to FIG.
0 will be described. The synchronization control ID 300 is the screen ID 21
1, a page ID 303, a synchronization management ID 305, a session ID 307, and a session ID generation time 309.

The screen ID 211 is synonymous with the screen ID 210 managed by the screen information 210. Note that when the synchronization control ID 300 is used to manage the Web application screen independently generated by the relay service 110 irrespective of the screen generated by the host application 161, the screen ID 211 and the page ID 303 are dedicated. Is set to a fixed value.

The page ID 303 is a management number for enabling the same screen of the host application 161 to be displayed on a plurality of Web application screens.
It is controlled by the operation procedure file 121.

The synchronization management ID 305 is the time at which the hypertext synthesizing means 137 is instructed to generate a Web application screen, and is also the time at which the host application 161 starts monitoring the non-communication timeout.

The session ID 307 is a management number for enabling a plurality of users to simultaneously connect to the host application 161 and is managed within the range of the number of simultaneous connections to the host application 161.

The session ID generation time 309 is a connection start time to the host application 161 and functions when a limited number of session IDs are reused within the range of the number of simultaneous connections. Specifically, when a session ID that has been invalidated once is reused due to non-communication timeout monitoring or the like, even if a reconnection request is made from the same invalidated session ID, the session ID generation time 209
If the values do not match, it can be determined that the connection request is invalid.

The synchronization control ID 300 is collectively managed as a synchronization control ID management table 400 by the synchronization control means 135 in the relay service 110, and each screen of the Web application generated by the relay service call content 147 is displayed. Is registered as information for identifying.

Next, the synchronous control ID management table 400 will be described with reference to FIG. The synchronization control ID management table 400 is a management table using the synchronization control ID 300 as one record, and the number of simultaneous connections to the host application 161, that is, the maximum number of session IDs 307.
a table in which (n) is the number of records;
135 manages.

Session ID 307 of each synchronization control ID 300
, The value of the simultaneously connectable number (n) from 1 is preset as a fixed value. When no time is registered at the session ID generation time 309, the synchronization control ID 300 indicates an unused state, that is, a state where a new connection with the host application 161 is possible.

Next, referring to FIG.
The basic configuration of 1 will be described. Operation procedure file 121
Is roughly divided into a terminal screen generation instruction unit 501 and a host emulator control instruction unit 503.

The terminal screen generation instructing unit 501 describes a control for instructing screen generation of a Web application and waiting for a response from the Web application.
However, when performing control that does not require screen generation for the Web application, the terminal screen generation instructing unit 501 is unnecessary.

The host emulator control instructing unit 503 includes:
Analyzing the screen of the host application 161 and Web
The control for transitioning the screen of the host application 161 is described by using the information such as the newly received form variable as a key in response to the response from the application b. After the procedure completed by the host emulator control instruction unit 503,
An emulator termination control instructing unit 505 can also be described.

Host emulator termination control instructing unit 505
Is a process that is preferentially called when the system is forcibly terminated by a timeout process or the like. In other cases, the procedure does not function unless explicitly called from the host emulator control instruction unit 503.

The operation procedure file 121 is associated with the screen ID 211 managed by the business file 123 on a one-to-one basis. This means that there is one unique operation procedure file corresponding to the connection request to each business screen managed by the screen ID, and the host application 161
With one screen transition, one operation procedure file 121
Ends.

Next, the basic configuration of the relay service call content 147 will be described with reference to FIG. The relay service call content 147 is a dynamic HTML generation unit 1
It is written according to 45 rules.

<HTML></ HTML required as HTML content
HTML> tag, <BODY></BODY> tag, and header section 301, regardless of the return value of relay service 110,
Generated by the relay service call content 147.

The <BODY></BODY> tag includes a relay service calling unit 603. Relay service caller 603
Has a function of calling the relay service 110, and at the time of the call, the form variables of the Web application are transferred to the relay service 110.

Then, the relay service calling unit 603 outputs the character string received as the return value of the processing result of the relay service 110 as it is.

Therefore, the dynamically generated contents can be transferred to the Web browser 15 because the return string of the relay service 110 has an appropriate Web display syntax.
One can receive.

Next, the operation of one embodiment of the present invention will be described.

Next, the overall operation of the present embodiment will be described in detail with reference to FIGS. Here, a Web application system conforming to the HTML standard will be described.

First, the operation of the system according to the present embodiment is started when the operator makes a connection request to a specific URL in which the relay service call content 147 on the Web server 143 is stored by the Web browser 151 (FIG. Step A1).

The relay service call contents 147 include:
<HTML> tag which is indispensable as a component of HTML screen
In the <BODY> tag and the <BODY> tag, a description for calling the relay service 110 in accordance with the rules of the dynamic HTML generation unit 145 is included as an element, and the Web browser 15
In response to the connection request from (1), the internal processing of the relay service 110 is called via the dynamic HTML generation means 145. In addition,
The connection request involves transmission of a form variable corresponding to the HTML syntax, and this form variable group is delivered to the relay service 110 as it is.

The relay service 110 receives, via the relay service interface 139, form variables transmitted by the Web application as a group of meaningful variables.

Then, the synchronization control means 135 checks whether there is a variable dedicated to the synchronization control ID 300 from the variable group (step A2).

At the time of the first connection request, the synchronization control ID 300
There is no. In such a case or when a connection request with an invalid synchronization control ID 300 is received, a Web application screen generation process for performing user authentication as to whether or not the request is made by an operator who is permitted to connect to the business is performed. (Step A3). In this case, the hypertext synthesizing unit 137 generates the prepared default HTML syntax according to the instruction of the synchronization control unit 135, and generates the dynamic HTML generating unit.
145 via the relay service call content 147
Generate a screen for the web application.

At this time, the hypertext synthesizing means 137
In response to the instruction from the synchronization control unit 135, the specially defined values for the screen ID 301 and the page ID 303 are added as hidden information to the set synchronization control ID 300 for the user authentication screen. Then, the relay service call interface 139
Via the relay service call content 147
The application screen is assembled, and the Web server 143 transmits the screen to the Web browser 151.

It is also possible not to perform the user authentication function. In this case, the operation proceeds as if all users have been granted access rights to all tasks, and the process proceeds to step 7.

Next, the operator transmits information for the authentication based on the received instruction on the Web application screen (step A4).

The information transmitted by the operator is transmitted as a combination of a form variable defined in the HTML content and its value. As one of these variables, the synchronization control ID 300 for the user authentication screen is also stored as hidden information. Sent.

The transmitted information is analyzed by the synchronization control means 135 in the same manner as in the screen generation processing for performing the user authentication described above.

First, the presence or absence of the synchronization control ID 300 is confirmed (step A2), and it is confirmed that the synchronization control ID 300 is for an authentication screen (step A5).

If the ID is the synchronization control ID 300 for user authentication (Yes in step A5), the information transmitted as the user authentication information is compared with the information in the authentication information file 127 to verify the access right to the business. (Step A6).

When the transmitted user authentication information is authorized to access the business, the synchronization control unit 135 uses the predetermined HTML syntax prepared by the hypertext synthesizing unit 137 in accordance with the instruction. H for job selection screen
A process of generating a TML syntax and generating a business list screen permitted for the Web application in the relay service call content 147 via the dynamic HTML generating means 145 is performed (step A7). Here, screen ID
A synchronization control ID 300 for a job selection screen, in which specially defined values are set in the 301 and the page ID 303, is given as hidden information and transmitted.

If there is only one task that can be selected, the action of selecting the task is not essential. In such a case, the task selection screen is not transmitted, and
It is also possible to generate only the ID D and the synchronization control ID 300 and then proceed to the process of step A9.

The operator selects and transmits a task based on the received instruction on the Web application screen (step A8). The business selected at this time is transmitted as the value of a specially defined business ID form variable, and the synchronous control ID 300 for the business selection screen is also transmitted as one of those variables with hidden information. .

The transmitted information is analyzed by the synchronization control means 135 in the same manner as in the above-described job selection screen generation processing.

First, the presence or absence of the synchronous control ID 300 is confirmed (step A2), and it is confirmed that the synchronous control ID 300 is for business selection (step A9).

When the ID is the synchronous control ID 300 for selecting a task, the ID is used based on the information in the synchronous control ID management table 300.
A session ID 307 required for connection to the host application 161 and a session ID generation time 309 are generated (step A10). Specifically, the session ID 307 in which an invalid value is registered as the time at the session ID generation time 309 is searched from the synchronization control ID management table 300, and if the corresponding session ID 307 can be searched, the session of the same record is searched. At the ID generation time 309, information using the system time as a key is registered.

When the session ID 307 is successfully generated,
The synchronization control means 135 transfers the business ID 201 and the synchronization control ID 300 received from the Web application to the operation procedure control means 133, and the operation procedure control means 133 uses the business ID 201 as a key and the initial operation procedure file name 207. Then, the procedure for starting the business stored in the operation procedure file 121 is executed (step A11), the host application 161 is started via the host emulator 131, and the first screen managed by the business file 123 is executed. Transition is made (step A12).

The operation procedure control means 133 receives the screen of the host application 161 via the host emulator means 131 at the timing when the screen transition is completed, and the screen identification information 215 of the host application 161 managed by the business file 123. , The screen to which the screen is currently transitioning is specified, and a screen ID 211 is generated. Then, the procedure stored in the operation procedure file 121 is executed based on the operation procedure file name 213 (step A13).

When the procedure of the operation procedure file 121 includes the terminal screen generation instructing unit 501, that is,
If the b application screen generation procedure is described, the operation procedure control unit 133 instructs the hypertext synthesis unit 137 to generate a Web application screen (step A14).

At this time, the operating procedure control means 133 sends the file name of the intermediate HTML file 127 specified in the operating procedure file 121 to the hypertext synthesizing means 137 and the screen information of the host application 161 required by the intermediate HTML file 127. Then, after transferring the synchronization control ID 300 information to the synchronization control means 135, the system enters a state of waiting for a response from the Web application (step A15).

Then, the synchronization control means 135 transfers the information received from the operation procedure control means 133 to the hypertext synthesizing means 137 as it is.

The hypertext synthesizing means 137 outputs the intermediate H
By analyzing the extension tags and extension parameters described in the TML file 127 and replacing the screen information of the host application 161 received from the synchronization control means 135 with the corresponding extension tags and extension parameters, the relay service call content 147 is expected. Generate information to At this time, the synchronization control ID 300 is used as information for identifying the transition state of the host application 161 and assuring synchronization control.
Is given as hidden information and transmitted (step A1).
6).

The generated information is stored in the cache file 129 managed for each session ID (step A17). This is because the connection request from the Web application is valid, but the host application 16
Used for synchronization control when synchronization with 1 is not achieved.

The operator performs a task and transmits the job based on the received instruction on the Web application screen (step A18). The information transmitted at this time is transmitted as a value of a specially defined form variable, and the synchronous control ID 300 for synchronous control is also transmitted as one of those variables while keeping the hidden information as hidden information.

The transmitted information is analyzed by the synchronization control means 135.

First, the presence / absence and validity of the synchronous control ID 300 are checked (step A2). If the synchronous control ID 300 is valid, if the synchronous control ID 300 is not for user authentication or task selection, the synchronous control ID management table Based on the 400, the synchronization control ID 300 is verified. First, session ID3
The validity of 07 is verified (step A19).

Specifically, the session ID 307 of the synchronous control ID management table 400 is searched using the session ID 307 of the synchronous control ID 300 as a key, and the session I of the same record is searched.
It is verified that the value of the D generation time 309 matches the value of the session ID generation time 309 of the synchronization control ID 300. If the values of the session ID generation times 309 do not match, it is determined that the synchronization control ID 300 is invalid, and step A3
Return to the processing of.

If the session ID 307 is valid (Yes in step A19), the validity of the synchronization control ID 305 of the synchronization control ID 300 is verified based on the information of the synchronization control ID 305 of the synchronization control ID management table 400. (Step A20).

If the values of the synchronization control IDs 305 do not match,
It is determined that the connection request by the synchronization control ID 300 is not synchronized with the transition screen of the host application 161.
Web synchronized with session ID 307 as a key
Get information to resend application screen,
The information expected by the relay service call content 147 is generated (steps A21 and A25).

If the values of the synchronization control IDs 305 match, the connection request by the synchronization control ID 300 is determined to be synchronized with the transition screen of the host application 161, and the operation procedure control means 133 sends the screen ID 211 and the screen ID 211. Web
The form variable transmitted by the application is delivered (step A22).

The operation procedure control means 133 stores the operation procedure file 12 in a state of waiting for a response from the Web application.
Step 1 is continued, and the host emulator control instructing unit 503,
That is, screen analysis and screen transition control of the host application 161 are performed (step A23).

The operation procedure file 121 may include a plurality of terminal screen generation instructing units 501 and a plurality of host emulator control instructing units 503.

The processing of the operation procedure file 121 ends when the screen transition of the host application 161 is completed, and the processing of step A13 is repeated.

Finally, instructions in the operation procedure file 121,
Alternatively, when an instruction for forcibly interrupting the process occurs for some reason, the operation procedure control unit 133 transmits the operation procedure file 121 of the end operation procedure file name 209 based on the business information 200 of the business file 123. To clear the value of the session ID management generation time 309 from the synchronization control ID management table 400 in order to invalidate the corresponding session ID 307 and return to the unused state, and then end the work (step A24).

Next, a specific example will be described. FIG.
In one embodiment of the present invention, the host application 16
This is an example in which a part of 1 is a business model of a Web application, and a UR in which a business is registered from a Web browser.
The operation will be described while comparing screen transitions between a Web application and an existing online application after a connection request is made to L.

First, the process starts with a request for connection to the relay service call content 147 from the Web browser 151 (step B1). Here, "http://www.host.com/
gyoumu.asp ”.

[0139] "gyoumu.as", which is the relay service call content 147 that received the connection request from the Web browser 151,
p "calls the relay service 110.

The relay service 110 has a synchronization control ID 300
Is assigned to the form variable “HOST_ID” in the HTML syntax.

At the time of the initial connection request from the Web browser 151, since there is no form variable, the synchronization control means 136 of the relay service 110 sends the user Web browser instructed to generate an authentication screen and requested connection
In 151, the user authentication screen is returned.

However, when the host application 161 has a user authentication screen, the host application 161 is not a user authentication function provided by the relay service 110,
In some cases, it may be desirable to use only the 161 user authentication functions.

In such a case, the relay service 110 may not function its own user authentication service in a specific business.

When there is only one business that can be selected, the generation of the business selection screen can be omitted. These operations can be performed by giving as one of the parameters of the communication setting information 205 in the business information 200 of the business file 123.

FIG. 8 shows an example in which the user authentication function of the relay service 110 is not used, and when there is only one selectable job, the job selection screen is not generated.
In this case, in the relay service 110, the user authentication is established and the service is treated as if it had been selected.
307, the session ID generation time 309 is generated, and
The initial operation procedure file name 207 corresponding to D211 is called (step B2).

Here, it is assumed that the task corresponding to the task ID “01” is started, and “01” is assigned to the session ID 307, and “200010310930134500” is assigned to the session ID generation time 309.

The operation procedure control means 133 displays the host application screen, the transition of which has been completed under the control of the initial operation procedure file name 207, into the screen identification information 215 of the business file 123.
It is specified that the screen is (screen H1) from the combination information of the character string and the coordinates on the screen registered in
Generates screen ID 211 and file operation procedure file name 2
The 13 operation procedure files 121 are executed.

The operation procedure file 121 instructs generation of a Web application screen (screen W1) by using the intermediate HTML file 127 which is a template file of the Web application screen corresponding to the screen ID 211, and responds from the Web application screen. It enters a waiting state (step B3).

It should be noted that the generated screen (screen W1) has a form variable "HOST_ID" with a hidden attribute, and a synchronization control ID 300 already inserted. Here, screen ID 211
Is “01”, the operation procedure file name 213 is “passwd.act”,
The intermediate HTML file 127 specified in the operation procedure file name 213 is “passwd.htm”, and the page ID corresponding to the screen ID 211 generated and instructed by the operation procedure file name 123
303 is "01", the synchronization management ID 305 generated at the time of screen generation
Is assumed to be assigned "200010310930134625".

The operator who has received the screen (screen W1) inputs and transmits a user ID and a password according to the instructions on the business screen. At that time, the synchronization control ID of the hidden attribute
300 are also sent. Specifically, the synchronization management control ID “HOST_ID” on the screen W1 includes the screen ID “01”, the page ID “01”, and the synchronization management ID “200010310930134625”.
, Session ID “01” and session ID generation time “200010310930134500”
31093013462501200010310930134500 "is set.

The relay service 110 verifies the received form variable “HOST_ID”, that is, the synchronization control ID 300, based on the synchronization control ID management table 400 by the synchronization control means 135.

First, it is confirmed that the session ID included in “HOST_ID” is valid.

Even if a connection request is made by an authenticated user, if the non-communication timer is set to be valid in the communication information setting 205 of the business file 123, an invalid session is set after a certain period of time. In some cases.

The validity of the session ID is determined by the synchronization control I
The time of the session ID generation time 309 that is paired with the session ID 307 of the D management table 400 is set in the form variable “HOST_
It is confirmed by checking whether it matches the session ID generation time 309 included in “ID”.

In the case of this example, the form variable “HOST_I
It is verified that the session ID of “D” is registered as “01” and the session ID generation time is registered as “200010310930134500”.

When the session ID is valid, it is verified whether the host application 161 is synchronized with the Web application screen. Confirmation of the synchronization is confirmed by checking whether the synchronization management ID 305 of the synchronization control ID management table 400 matches the synchronization management ID included in the form variable “HOST_ID”.

In the case of this example, the form variable “HOST_I
It is verified that “200010310930134625” is registered in the synchronization management ID of “D”.

If the synchronization management IDs do not match, the synchronization control means 125 sets the business ID to the synchronization control ID.
Using the screen ID 211 of the management table 400 as a key and using the screen information of the cache file 129, the Web application screen is regenerated and sent back to the Web browser 151.

If it is verified that the synchronization has been achieved, the synchronization control means 135 notifies the operation procedure control means 133 in a response waiting state of a response from the Web application, and resumes the execution of the operation procedure file. I do. Then, if necessary, the form variables notified from the Web application screen (screen W1) are analyzed, and the host application 161 is controlled via the host emulator means 131 by internal control equivalent to an operator operation, and the screen is transited. .

Thereafter, under the same control as in step B3, the operation procedure control means 133 displays the host application screen to which the transition has been completed under the control of the initial operation procedure file name 207.
From the combination information of the character string on the screen and its coordinates registered in the screen identification information 215 of the business file 123, it is specified that the screen is (screen H2), the screen ID 211 is generated, and the operation procedure file name 213 is generated. Is executed (step B4).

When only a specific business is performed as a Web application as in this example, the input transmission value on the business selection screen generated by the host application 161 is likely to be a fixed value. In such a case, the operation procedure file 121 is not instructed to generate a Web application screen, and a description for automatically inputting / transmitting a specific value to an input area of a screen generated by the host application 161 is provided. As a result, unnecessary operations can be reduced.

In the example shown in FIG. 8, the screen H2 and the screen H3 are changed without being conscious of the Web application.

Step B5 is almost the same control as step B2. The difference is that in step B2, all information on the host application screen (screen H1) is
In contrast to the application screen (screen W1), in step B5, only part of the information of the host application screen (screen H4) is captured in the web application screen (screen W2).

In addition, the input value on the host application screen (screen H4) and the input value on the Web application screen (screen W2) do not always have to match.

For example, even if the selected value of “Tochigi” on the host application screen (screen H4) is “11”, the operation procedure file 121 (“chiku.act”) will
Since the form variables received from the application b can be processed, the selection value of "Tochigi" is assigned to "1" on the Web application screen (screen W2), for example, when the form variable "tiku" is substituted and transmitted. , The form variable “tiku” in the operation procedure file 121
Is “1”, by describing control for replacing the value with “11”, the design and operability of the Web application screen can be made natural.

Steps B6 and B7 are also steps B
The control is almost the same as that of the fifth control. The difference is that in step B7, a procedure for terminating the host application 161 is explicitly presented on the Web application screen (screen W4).

In the relay service 110, when forced termination is performed for some reason, when the host emulator termination control instructing unit 505 is described in the currently operating operation procedure file 121, the host emulator termination control instructing unit If 505 is not described,
The job is ended using the end operation procedure file name 209 defined in the job information 200 of the job file 123.

At step B7, a procedure for calling the end operation procedure file name 209 when the transmission button name described in the intermediate HTML file is identified on the operation procedure file side and the transmission button name to which the end operation is assigned is received as a form variable is received. By describing this in the host emulator control instructing unit 503 of the operation procedure file 121, a means for explicitly terminating the business is provided.

Here, the operation procedure file 121 and the intermediate H
A specific example of the relationship between the TML file 127 and the generated Web application screen will be described. That is,
FIG. 9 shows an example of the operation procedure file “chiku.act” corresponding to the screen ID “02” of the business ID “01”, and FIG.
An example of the intermediate HTML file “chiku.htm” is shown, and FIG. 11 shows a screen ID “02” and a page ID “01” as the actually generated Web application screen (screen W2), that is, the relay service call content 147.
Shows an example of an HTML file output by the.

The Web application screen (screen W2) is a screen generated based on the information of the host application screen (screen H4). From the list displayed on the screen, click the hyperlinked list screen, or This is a screen for selecting a value by pressing a selection number with a numeric button of a mobile phone or by inputting a numerical value into an input field and then clicking a transmission key. The numbers in each drawing are block numbers set for convenience for explanation.

FIG. 9 shows an operation procedure file (“chiku.ac
t ”). Block 901 starts with a label“: START ”executed immediately after the operation procedure file is started. Here, the command“ WEBDISP ”chiku.htm” ”
An instruction to generate the Web application screen (screen W2) of FIG. 8 using the HTML file name “chiku.htm” is issued, and the Web
Waits for a response from the application.

Note that “WEBDISP“ chiku.htm ”” is replaced with “WEBD
Synonymous with ISP "chiku.htm", 1 ", the omitted parameter", 1 "indicates a page number.

The operating procedure file in the response waiting state is
b Resume the process with the response from the application, and execute block 903. Block 903 identifies what route was called from the web application.

Specifically, it is determined whether the connection is a connection request using a transmission key based on the submit attribute, a connection using a user button for assigning a function key other than the transmission key, or a connection using a hyperlink.

In the case of a connection request using the transmission key based on the submit attribute, only the “SEND WEBNAME” command for performing an internal control equivalent to pressing the execution transmission key by the operator is described and received by the internal control of the operation procedure control means 133. The form variables are associated with the coordinates of the host application screen, and the screen of the host application 161 is transitioned.

However, as in this example, for example, on the host application screen (screen H4), "
If the option treated as "13" is treated as "1" on the Web application screen (screen W2), block 907
The value conversion process is performed in the operation procedure file.

This is because, by making the information shared between the host application screen and the Web application screen the same value, there is no need to be aware of the form variables in the operation procedure file. In addition to being able to process the value input on the Web application and pass it to the host application, even if the validity of the input value cannot be verified on the Web browser, it is verified in the operation procedure file and abnormal values are input. Even if it is done, without reminding the host application, perform the screen retransmission control in the operation procedure file,
Re-input means that the operation can be realized.

In the case of connection by a user button or connection by a hyperlink, as in block 906, form variables are explicitly received in the operation procedure file, and the correspondence on the host application screen is instructed and transmitted.

A block 909 is a description for ending the operation procedure file.

In block 911, a description for calling a macro or the like for appropriately terminating the host application is made from this screen. The description is optional, but at the time of forced termination, if a control statement is described in this block, this control is performed with priority.

FIG. 10 is a description example of an intermediate HTML file ("chiku.htm") for generating the screen W2.
<HTML><BODY></BODY></ HTM in the intermediate HTML file
Neither L> tag nor <FORM></FORM> tag for transmission control is required, but there is no problem because incomplete description is ignored only.

At block 1001, a description is made to link the information of the screen (screen H4) generated by the host application 161 and the Web application screen (screen W2). In this example, for the HTML tag, the form name is “HOST_LINK”, ie, “name =" HOST_LIN
When K "" is set, the value of the host application screen (screen H4) is associated with the web application screen (screen W2) according to the instruction of the subsequent extended parameter.

That is, the means for realizing the association between the screen of the host application and the Web application screen is as follows:
Does not depend on HTML syntax tags at all. A specific name,
Subsequent association target range information based on coordinates on the host application screen and attribute information indicating how the association target range is to be handled on the Web application screen are added to the information on the host application screen. , Web application screens are associated with each other. This is one of the characteristic implementations of the present invention.

In this example, the reason for realizing the association by using the HTML standard tag without using the unique tag is that when the system is constructed, the contents of the intermediate HTML file are
This is because it is also possible to facilitate the confirmation by the HTML viewer.

In block 1001, the parameter defined by “host =” indicates the coordinates on the screen W2. here,"
By writing "host =" 17,6,25,13, link "", a character string of 9 bytes × 6 lines from horizontal 17 and vertical 6 to horizontal 25 and vertical 12 of the screen H4 is to be associated. The “, link” parameter described after the coordinate information is an option for making each line to be associated a selection target by a hyperlink using an <A></A> tag.

Further, "HOST_KEY =" 13,14,15,16,17,1
The parameter "accesskey =" 1,2,3,4,5,6 "is set so that the line to be selected by pressing the number button of the mobile phone can be selected for the six lines to be associated by" 8 "". ". This means that 1,2,3,4,
This is an option to associate with the number buttons 5 and 6.

[0187] It should be noted that "HOST_KEY = 13,14,15,16, HOST_KEY = 13,14,15,16,17,18" 17,18 "".

At block 1003, "host =" 71,18,72,18,
002, inp "" parameter, the horizontal 71 of the coordinates of the screen H4,
A 2-byte area from vertical 18 to horizontal 72 and vertical 18 is an input area in which 2 bytes can be input.

In block 1005, the form name "HOST_SEND" and "host =" send "" are given to the tag having the "submit" attribute indicating the transmission key of the HTML syntax. “HOST_SEND” means a system definition key of the host application, and is described by a “host” parameter to mean that it is an “execution / transmission key”.

In the intermediate HTML file, the host application screen and Web
b. Relay with application is realized.

The HTML tag of the Web application screen (W2) generated based on these descriptions is shown in FIG.
It is. In block 1101, a <form> tag completed as HTML syntax is generated. This can be generated by the hypertext synthesizing unit 137 inquiring the Web server 143 about the file name of the relay service call content 147.

The block 1103 can be generated by the synchronization control ID management table 400 managed by the synchronization control means 135.

The block 1105 can be generated based on the information of the block 1001 of the intermediate HTML file in FIG.
In this case, since the connection by the hyperlink is instructed, the form variable “HOST_ID”, which is the synchronization control ID 300 necessary for the synchronization control, and other form variables are:
It is generated as an argument attached to the link destination URL in a format that can be acquired by the GET method of the HTML syntax.

Also, an i-mode extended HTML command, which functions only with an i-mode compatible browser and enables a selection operation by pressing a numeric button on a telephone, is generated as requested.

Block 1107 can be generated by blocks 1003 and 1005 of the intermediate HTML file of FIG. Form name follows “HOST_LINK_”, then block 10
This is a combination of the input field start coordinates in the host application set by the “host” parameter of 03 and the effective input length information.

Since the input field of the corresponding host application screen can be specified based on the information of the block 1003, the operation procedure control means 133 determines that the input field of the host application screen (H4) has a numerical attribute. It is possible to recognize that the block
In the input field 1107, an initial attribute of the input mode can be explicitly given by an "istyle" command which is an i-mode extended HTML command.

Further, an example will be described in which, for example, a Web application linked with another database is constructed by calling a program created independently by the user. Here, the host application 161 obtains dynamic information from another database that manages the model number to be input, and dynamically generates a place where the model number should be directly input, and dynamically inputs the information on the Web application screen. An example will be described in which a list is selected in the list box.

To show a specific example, FIG.
Operation procedure file "corresponding to screen ID" 03 "of D" 01 "
search.act "and the intermediate HTML file" sear "
ch.htm ”and screen ID“ 03, page I in FIG.
D “01” indicates an example of an actually generated Web application screen (screen W3), that is, an example of an HTML file output by the relay service call content 147.

The Web application screen (screen W3) in FIG. 8 assumes that a product number to be searched is directly input by a model number, but this input field is dynamically generated from another database. The screen replaced with the list box is defined again as a screen W3.

FIG. 12 shows an operation procedure file ("search.a
ct "). Block 1201 starts with the label": START "which is executed immediately after the operation procedure file is started. Here, the command" WEBDISP "search.htm""
The generation of the Web application screen (screen W3) shown in FIG. 8 using the TML file name “search.htm” is instructed.
Waits for a response from the application.

The operation procedure file in the response waiting state is We
b) The process is restarted by the response from the application, and the block 1203 is executed.

[0202] A block 1203 identifies the path called by the Web application. In the case of the screen W3, a connection request is made with the transmission key based on the submit attribute, and the “SEND WEBNAME” command for performing internal control equivalent to pressing the execution transmission key by the operator is described. Is associated with the coordinates of the host application screen, and the screen of the host application 161 is transited.

FIG. 13 is a diagram showing a specific example of a description of an intermediate HTML file ("search.htm") for generating the screen W2. Referring to FIG. 13, block 13
In the description 01, a description is made to link the information of the screen (H5) generated by the host application 161 and the Web application screen. As in block 1003 of FIG. 10, the form name is "HOST_LINK", that is, "name =" H
If OST_LINK "" is set, the host application screen (screen H
The value of 5) is associated with the Web application screen (screen W3).

The parameter defined by “host =” in the block 1301 indicates the coordinates on the screen W3. Here, "ho
By writing st = "71,10,78,10,0008, user_1"", the screen H5 has a width of 71 bytes, a length of 10 to 78 widths, and a length of 8 bytes.
One line of the character string is targeted for association. The ", 0008" parameter described after the coordinate information is an input effective length, and the ", user_db1" parameter is for calling a user program for generating a character string of an HTML syntax for setting a value to be associated. Contains argument information for

The option for calling the user-created program is identified based on whether the first five characters of the parameter are "user_", and the character string after the fifth character is identified as the program name.

The operation procedure control means 133 for analyzing the intermediate HTML file 127 calls a specific program by a specified call name when an option for calling a user-created program is specified. Then, a character string to be set as a form tag name is passed as an argument “name”, and a complete form tag character string is expected as a return value.

In the case of block 1301, "db1" is a call name, and "HOST_LINK_7110008" is passed as an argument. In the case of this example, since the purpose is to generate an input field of the screen W3, that is, a list box for selecting a list of product numbers, any user program that can generate information as a return value such as a block 1401 in FIG. I just need.

FIG. 14 shows HTML tags of the Web application screen (W3) generated based on these descriptions. This is the same as the generation process in FIG. 11 except that the character string in block 1301 uses the return value of the user created program.

Next, another embodiment of the present invention will be described in detail with reference to the drawings. Referring to FIG. 1, in the present embodiment, the relay service interface 139
In addition to the interface with the b server 143, it has an interface with the mail server 141.

This is the relay service interface 13
At 9, a function for converting the information of the hypertext synthesizing means 137 into information suitable for the mail server 141 is implemented. For example, by including the mail address information in the components of the authentication information file 125, the information of the mail header from the specific mail sender can be used as access right management without changing the implementation of the other execution unit 130. ,
Necessary information can be transmitted and received as mail text.

Further, even if the mail server 141 to the mail client 153 are configured by an interface of a file transfer or other information transmission means, the implementation of the other execution unit 130 is changed by the correspondence of the relay service interface 139. Without this, remote control of the host application 161 is possible.

Further, these extended interfaces and relay service call contents 1 of the Web server 143 are provided.
It is easy to imagine that the coexistence operation of the 43 enables the partial information of the host application 161 to be output not only to the Web browser 151 but also to a more suitable device.

For example, when the host application 161 has a function of printing out, a print output request command is described in the intermediate HTML file 127, and when the operation procedure file requests generation of a Web application screen, the intermediate HTML file 127 The output procedure request is analyzed by the operation procedure control means 133, the print control data is subjected to text conversion and shaping processing, and the converted text data is finally received by the relay service interface 139, and the mail server By transmitting the text to the mail client 153 with the interface 141 or mounting a facsimile (FAX) transmission interface on the relay service interface 139, the text can be transmitted to an arbitrary destination FAX device.

Further, since the implementation of the present invention does not depend on the HTML standard, including the intermediate HTML file 127, the parts of the execution unit 110 that are conscious of the HTML language are replaced with other Web parts.
By supporting the browser control language, it is easy to support a Web browser control language other than the HTML standard and its extended language.

[0215]

As described above, according to the present invention, the following effects can be obtained.

A first effect of the present invention is that a business flow conventionally provided without changing an existing host application can be represented by a NTT DoCoMo i-mode portable terminal (i-mode compatible browser) or the like. This means that an Internet-compatible application can be used even on a Web browser terminal that has minimum requirements as a Web browser terminal.

The reason is that, in the present invention, the relay service operates the user interface in consideration of the display capability, function, and operability of the Web browser terminal while performing internal control equivalent to the operator operation for the host application. This is because it has a means that can be assembled and provided, and a Web application associated with the screen information of the host application can be constructed without affecting the existing host application at all.

A second effect of the present invention is that the synchronization between the screens of the host application and the Web browser is monitored, and the Web application is synchronized with the Web application.
When an asynchronous connection request occurs due to the browser's cache function (return function), an appropriate screen is displayed.
b, so that the service can be continued even if the line between the Web server and the communication portable terminal is disconnected. In addition, there is no need for an ability to hold terminal-specific information such as a cookie.

The third effect of the present invention is that the means for associating the screen of the host application with the screen of the Web application uses means that is not restricted by the HTML language, so that it can be flexibly applied to browser display languages other than the HTML standard. It is possible to correspond to.

The reason for this is that, in the present invention, the means for associating the screen of the host application with the web application screen gives a specific parameter to an arbitrary tag, and then associates the target area with the coordinates on the host application screen. This is because the information on the host application screen and the Web application screen are associated with each other by adding attribute information indicating how the information and the association target range are to be handled on the Web application screen. .

Further, the screen of the host application and W
Also in the intermediate HTML file used as the association information of the web application screen, the <HTML> tag and the <BODY> tag, which are essential components in the HTML language, and the <FORM> tag, which is a transmission control tag, are not required. All that is required is the minimum necessary components for screen generation and the relevant information of the screen of the host application and the Web application screen, and the implementation is not restricted by the HTML language.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing an example of the contents of a business file according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of the content of a synchronization control ID according to an embodiment of the present invention.

FIG. 4 is a diagram showing an example of the content of a synchronization control ID management table according to an embodiment of the present invention.

FIG. 5 is a diagram showing an example of the contents of an operation procedure file according to an embodiment of the present invention.

FIG. 6 is a diagram showing an example of a configuration of a relay service call content according to an embodiment of the present invention.

FIG. 7 is a flowchart showing a process according to an embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a specific example of one embodiment of the present invention.

FIG. 9 is a diagram showing a specific example of an operation procedure file according to an embodiment of the present invention.

FIG. 10 is a diagram showing a specific example of an intermediate HTML file according to an embodiment of the present invention.

FIG. 11 is a diagram showing a specific example of a screen (HTML file) in one embodiment of the present invention.

FIG. 12 is a diagram showing a specific example of an operation procedure file according to an embodiment of the present invention.

FIG. 13 is a diagram showing a specific example of an intermediate HTML file according to an embodiment of the present invention.

FIG. 14 is a diagram showing a specific example of a screen (HTML file) in one embodiment of the present invention.

[Explanation of symbols]

Reference Signs List 100 server machine 110 relay service 120 definition unit 121 operation procedure file 123 business file 125 authentication information file 127 intermediate HTML file 129 cache file 130 execution unit 131 host emulator means 133 operation procedure control means 135 synchronization control means 137 hypertext synthesis means 139 relay Service interface 140 OS 141 Mail server 143 Web server 145 Dynamic HTML generation means 147 Relay service calling content 150 Mobile communication terminal 151 Web browser 153 Mail client 200 Business information 201 Business ID 203 Business name 205 Communication setting information 207 Initial operation procedure file name 209 End operation procedure file name 210 Screen information 211 Screen ID 213 Action Sequential file name 215 screen identification information 300 synchronization control ID 303 page ID 305 synchronization management ID 307 session ID 309 session ID generation time 400 synchronization control ID management table 501 terminal screen generation instruction unit 503 host emulator control instruction unit 505 host emulator end Control instructing unit 601 Header unit 603 Relay service calling unit 901, 903, 905, 907, 909, 911, 1
201, 1203, 1205 Block of operation procedure file 1001, 1003, 1005, 1301 Intermediate HTM
L-file blocks 1101, 1103, 1105,
1107, 1401 HTML file block

Claims (31)

[Claims] 1. A method according to claim 1, further comprising a client terminal, and a server machine connected to said client terminal to perform a relay service with a host machine, wherein said business flow of a host application executed on said host machine is compatible with an Internet terminal. A cache function (“return” function) for displaying a cache screen immediately before the Web browser of the client terminal is used, and a business flow (referred to as “Web application”) controlled on the Web browser and the host application Existing on-line application, wherein when the server application is not synchronized, the server machine controls synchronization of the screen of the Web application to return to the same state as the transition state of the host application. Inter Internet terminal compatible method. 2. A method according to claim 1, further comprising a client terminal, and a server machine connected to said client terminal for performing a relay service with a host machine, wherein said business flow of a host application executed on said host machine is adapted to an Internet terminal. The server machine monitors the synchronization of the screen of the host application and the Web browser screen of the client terminal. Asynchronous communication from the Web browser due to the cache function of the Web browser and temporary disconnection of the client terminal. And transmitting an appropriate screen from the server machine to the Web browser when the connection request is issued. 3. The server machine monitors synchronization between a screen transition state of a Web application controlled by the Web browser and a screen transition state of the host application in response to a connection request from the Web application by a synchronization control unit. When a connection request is received from the Web application in a state where the connection request from the Web application is not synchronized with the current transition state of the screen of the host application, when the connection request is received from the Web application, Controlling to return to a synchronized and normal state by forcibly retransmitting an appropriate screen managed by the synchronization control means to the Web browser without initializing business processing. The existing online application according to claim 1 or 2, characterized in that: Internet terminal corresponding method of Shon. 4. The synchronous control of the screen transition between the Web application and the host application by the server machine even for a client terminal that does not support a cookie function. 3. The method according to 1 or 2, wherein the existing online application is compatible with an Internet terminal. 5. The connection to the host machine, wherein the We Web
b When the communication between the server and the client terminal is disconnected and the connection is re-established,
4. The synchronous control of screen transition between an application and a host application is performed, and the business process of the host application can be continued without initializing the business process of the host application. How to use existing online applications for Internet terminals. 6. The server machine according to claim 1, wherein input / output with said host application is compatible with devices other than said Web browser, including a mail client and / or a facsimile machine. 3. The method according to 1 or 2, wherein the existing online application is compatible with an Internet terminal. 7. The server machine has relay service means for relaying between a Web server and a host machine, wherein the Web server is described to call the relay service means, and a Web browser of the terminal is provided. And a relay service call content for calling the relay service means in response to a connection request from the relay service means. The relay service call content receives information from the relay service means that has received the processing result of the host application, and receives the result. Based on Dynamic HTM
The HTML content dynamically generated by L (HyperText Markup Language) generation means is transmitted from the Web server to the Web browser, The existing content according to any one of claims 1 to 6, characterized in that: How to support online terminals for online applications. 8. The relay service calling content according to claim 7, wherein the relay service calling content is set to a common fixed form for a plurality of services, and does not require modification or analysis according to the services. Internet terminal compatible method for existing online applications. 9. The method according to claim 8, wherein a request for connection of the Web application is made with a single URL address for a plurality of tasks. 10. When a forced termination is performed by the relay service means, analysis of a screen of the host application;
When the host emulator termination control instruction, which is a procedure for transitioning the screen of the host application in response to the response from the web application, is specified, the host emulator termination control instruction is performed. 8. The method according to claim 7, wherein the process is terminated for each task of the application. 11. An end process according to a transition state of a screen of the host application, an end process by a procedure considering all the transition states of the screen, and an end process by a dedicated procedure in each screen of the transition state. The method according to claim 1 or 2, wherein the method is adapted to perform the following. 12. The method according to claim 1, wherein a user program is called in a process of generating a Web application screen, and information of the host application can be combined with other dynamic information. 2
The method for Internet terminal support of existing online applications as described. 13. An HTML (HyperText Markup Langu) as a template for generating a Web application screen.
age) file in the intermediate HTML file,
As the association between the host application screen and the Web application screen, a specific name or a tag of the HTML standard and an association target range information by coordinates on the subsequent host application screen without depending on an HTML tag, and 3. The association between the information on the host application screen and the Web application screen by adding attribute information indicating how the association target range is handled on the Web application screen. How to use existing online applications for Internet terminals. 14. A terminal having a Web browser function, and a server machine connected to the terminal and relaying to a host machine, wherein the server machine relays a host application executed on the host machine. And a description for calling the relay service means.
A web server having a relay service calling content for calling the relay service means in response to a connection request from a web browser of the terminal; and wherein the relay service calling content is a relay service means for displaying a processing result of the host application. Received as a return value via the
The ML generation unit dynamically shapes the data into a format that can be displayed on the Web browser, and then transmits the data to the Web browser. The relay service unit controls the business flow on the Web browser (referred to as a “Web application”).
Receiving a connection request from the host application and monitoring synchronization between a transition state of the screen of the host application and a connection request from the web browser; and a connection request from the web browser and the current host. When a connection request is received from the Web browser in a state where the screen is not synchronized with the screen transition state of the application, it is managed by the synchronization control unit without initializing the business process of the host application. An information processing system, wherein a proper screen is forcibly retransmitted to the Web browser to control the screen to return to a synchronized and normal state. 15. A server device connected to a client terminal having a Web browser function and relaying to a host machine, wherein a host application executed on the host machine and means for monitoring synchronization of a screen of the Web browser. Means for transmitting an appropriate screen to the web browser when an asynchronous connection request is issued from the web browser due to a cache function of the web browser or a temporary communication disconnection of the client terminal. A server device, comprising: 16. In a server device connected to a client terminal having a Web browser function and relaying to a host machine, a business flow controlled on the Web browser ("Web flow").
Application)).
Monitors the synchronization between the screen transition state of the Web application controlled by the Web browser and the screen transition state of a host application executed on the host machine connected to the server machine, and displays a cache screen immediately before the Web browser. Is used, and when the Web application and the host application are not synchronized, the screen of the Web application is displayed in the same state as the transition state of the host application. A server device, comprising: means for controlling to return to (1). 17. A server device connected to a terminal having a Web browser function and relaying to a host machine, relay service means for performing a relay service of a host application executed on the host machine, and relay service means Is described,
A web server having a relay service calling content for calling the relay service means in response to a connection request from a web browser of the terminal; and wherein the relay service calling content is a relay service means for displaying a processing result of the host application. Received as a return value via the
The ML generation unit dynamically shapes the data into a format that can be displayed on the Web browser, and then transmits it to the Web browser. The relay service unit controls the business flow (“Web operation”) controlled on the Web browser.
Application)).
A synchronization control unit that monitors synchronization between a transition state of a screen of the host application and a connection request from the web browser, wherein the synchronization control unit includes a connection request from the web application and a current connection request from the host application. When a connection request is received from the Web application in a state where the screen is not synchronized with the screen transition state, the synchronization control unit manages the connection request without initializing the business process of the host application. A server device for forcibly retransmitting a proper screen to the Web browser so as to return to a synchronized and normal state. 18. An HTML serving as a template for generating a screen of a Web application by the relay service means.
An intermediate HTML file that is a file, and a hypertext synthesizing unit that generates a screen of a Web application using information received from the synchronization control unit. The synchronization control unit includes a first connection request from the Web browser. In response to the above, a function of instructing the generation of a screen of a Web application for authenticating an access right and selecting a job, and after confirming the validity of the connection,
A function of notifying a response from the Web application,
The operation procedure control means has a function of activating the host application in accordance with an instruction from the synchronization control means, and a function of identifying screen information generated by the host application, and corresponds to the identified screen. Controlling the execution of the operation procedure file, and controlling the execution of the operation procedure file.
To generate an appropriate screen using a TML file,
Via the synchronization control unit and the hypertext synthesizing unit, instructing generation of a Web application screen, and controlling the host application based on a response from the Web application;
18. The server device according to claim 17, wherein: 19. A server device for relaying between a terminal having a Web browser function and a host machine, comprising: relay service means for relaying a host application executed on the host machine; and a web server; The Web server is a dynamic H provided in the Web server.
It is controlled by the TML generating means, receives a connection request from the Web browser, calls the relay service means, receives a processing result in the host application of the host machine as a return value through the relay service means, and receives the result. Based on the HTML content generated by the dynamic HTML generation means,
A relay service call content to be transmitted to a browser, wherein the relay service means is an emulator means for performing a process equivalent to that of the host application being operated via an operator; A host emulator for transferring screen information transmitted by the host application to the operation procedure control means; and a screen based on the screen information managed by the business file from the received screen information of the host application. Identify and execute the operation procedure file corresponding to the screen, and, based on the information from the synchronization control means and the business information managed by the business file, provide the host emulator to the host emulator. Said operation procedure control means for instructing activation, The operation procedure file is written in a macro language whose execution is controlled by the operation procedure control means,
The host emulator means is controlled to give an instruction equivalent to that of the operator, the synchronization control means and the hypertext synthesizing means are instructed to generate a Web application screen, and the screen of the host application is transited. A procedure is described for performing control for causing the function to receive information necessary for generating a Web application screen from the operation procedure control unit, and passes the information to the hypertext synthesizing unit to instruct generation of the Web application screen. The screen transition state of the Web application controlled by the Web browser in response to a connection request from the Web application and the screen transition state of the host application managed by the operation procedure control unit are synchronized using synchronization control information. That it is And if the synchronization is not established, a function of instructing the hypertext synthesizing means to regenerate an appropriate Web application screen, Hypertext synthesizing means for generating a screen of a Web application using the obtained information and transferring the generated screen to a relay service interface, and a relay service interface for interfacing with the relay service means and another service means. A server device characterized by the above-mentioned. 20. The business file includes a business information file for specifying a business and managing settings for communicating with a host application, and information for specifying a business screen and executing a corresponding operation procedure file. 20. The server device according to claim 19, comprising a screen information file for managing the server. 21. When the operation procedure file is a control that requires generation of a screen for the Web application, W
a terminal screen generation instructing unit in which a procedure for generating an web application screen is described; analysis of the screen of the host application;
b. A host emulator control instructing unit in which a procedure for transitioning the screen of the host application in response to the application is described, and a process that is preferentially called when the system is forcibly terminated by a timeout process. A host emulator termination control instructing unit which is a procedure that functions when explicitly called from the host emulator control instructing unit. The operation procedure file contains one of the screen IDs managed by the business file. 21. The server device according to claim 19, wherein the server device is associated with each other on a one-to-one basis. 22. The relay service unit further includes an authentication information file for managing an access right of the host application to a business, and the synchronization control unit includes a management table in which a synchronization control ID is one record. And a synchronization control ID table having the maximum number of session IDs, which is the number of simultaneous connections to the host application, as the number of records, wherein the synchronization control ID includes a screen ID and a plurality of the same screen of the host application. A page ID, which is a management number for enabling display on the Web application screen, a synchronization management ID including a time at which the hypertext synthesizing unit is instructed to generate the Web application screen, and a plurality of users assigned to the host application. To allow users to connect at the same time And a session ID, which is a start time of a no-communication timeout monitoring time of the host application, and a session ID generation time. The synchronization control unit determines whether the authentication information file is A function of instructing the management of access rights to the host application using the information and the generation of a Web application screen for selecting a business using the business information of the business file; In order to periodically verify the synchronization management ID and invalidate the session whose connection time has passed, the value of the session ID generation time in the synchronization management ID is deleted, and the host emulator of the operating procedure file being operated is terminated. End operation procedure of the control instruction unit or the business information of the business file The server apparatus according to any one of claims 19 to 21, comprising: the ability to invoke Airu name, a. 23. An HTML serving as a template for generating a screen of a Web application by the relay service means.
An intermediate HTML file that is a file, wherein the intermediate HTML file describes an extended HTML tag for linking screen information of the host application with web application screen information; When generating the application screen, except for the user authentication screen and the business selection screen, using the designated intermediate HTML file, the hypertext synthesizing unit analyzes the intermediate HTML file, and the relay service call interface is 23. The server device according to claim 22, wherein the server device converts the information into necessary information. 24. The hypertext synthesizing means includes a cache file comprising a file for storing a result of analyzing the intermediate HTML file based on information from the synchronization control means, Intermediate HT analysis results
The same name as the ML file is stored in the cache file for each session ID, and when an instruction to generate a screen using an intermediate HTML file analyzed for synchronization processing is given, the information stored in the cache file is stored. 24. The server device according to claim 23, wherein the server device converts the information into information required by the relay service call interface by using. 25. The method according to claim 23, wherein the extension tags and parameters described in the intermediate HTML file are analyzed by the operation procedure control means to link information between a Web application and a host application. The server device according to the above. 26. Host application screen and Web
In the intermediate HTML file used as the association information of the application screen, the association between the screen of the host application and the Web application screen is not dependent on an HTML syntax tag, but a specific name or a tag of the HTML standard. The information on the host application screen and the information on the Web application can be added by adding the information on the range of the association based on the coordinates on the application screen and the attribute information on how the association target range is to be handled on the Web application screen. 25. The server device according to claim 24, wherein association of screens is realized. 27. A method according to claim 27, wherein when the intermediate HTML file specifies a call option of a program created by a user, said operation procedure analyzing means calls a predetermined program by the specified program. Item 25. The server device according to item 24. 28. In response to a request for connection to a business from the Web browser, the relay service means is started, and if a synchronization control ID is not in the synchronization control ID management table, a user authentication screen is displayed. In the case of an authentication screen, if there is an access right, a business selection screen is generated and transmitted to the Web browser, and the synchronization control ID is for business selection. If it is determined that the ID is a synchronous control ID for business selection, a session ID required for connection to the host application and a session ID generation time are generated based on the information of the synchronous control ID management table. If the generation of the session ID succeeds, the synchronization control means outputs the business ID received from the Web application.
And the synchronization control ID to the operation procedure control means. The operation procedure control means executes an initial startup procedure of the business stored in the operation procedure file using the business ID as a key, and The emulator means activates the host application and transitions to the first screen managed by the business file, and the operation procedure control means, via the host emulator means, at a timing when the transition of the screen is completed. Receiving the screen of the host application, identifying which screen is currently transitioning based on the screen identification information of the host application managed by the business file, generating a screen ID, and Executing the procedure stored in the operation procedure file, and b) When a procedure for generating an application screen is described, the operation procedure control unit instructs the hypertext synthesizing unit to generate a Web application screen, and waits for a response from the Web application. The synthesizing unit analyzes the extension tag or the extension parameter described in the intermediate HTML file, replaces the screen information of the host application received from the synchronization control unit with the corresponding extension tag or the extension parameter, and calls the relay service call. Generating information adapted to the content, the generated information is stored in the cache file managed for each session ID, and the information stored in the cache file is valid for a connection request from a Web application. , The host application 25. The server device according to claim 24, wherein the server device is used for synchronization control when synchronization with an application is not established. 29. The relay service interface,
A function of converting the information of the hypertext synthesizing means into information suitable for a mail server, using the information of a mail header from a mail client as access right management, and transmitting and receiving necessary information as mail text; 3. The method according to claim 2, wherein
3. The server device according to 3. 30. A print output request command is described in the intermediate HTML file, and a Web application screen is created for output data from the host application in accordance with the operation procedure file.
The operation procedure control means analyzes the intermediate HTML file, transmits output data subjected to necessary text conversion and shaping processing to the relay service interface, and transmits the output data from the relay service interface via a mail server. 24. The server device according to claim 23, wherein the server device transmits the data to a mail client or performs facsimile transmission via a telephone network. 31. A server device for relaying between a terminal having a Web browser function and a host machine, comprising: relay service means for relaying a host application executed on the host machine; and a web server; The Web server is a dynamic H provided in the Web server.
Controlled by the TML generating means, receiving a connection request from a Web browser, calling the relay service means, receiving a processing result in the host application of the host machine as a return value via the relay service means,
On the basis of the result, there is provided a relay service calling content for transmitting the HTML content generated by the dynamic HTML generating means to the Web browser, wherein the relay service means comprises: Emulator means for performing processing equivalent to being operated via the control unit, the host emulator being controlled by an operation procedure control means, and transferring screen information transmitted by the host application to the operation procedure control means. And (b) specifying a screen from the received screen information of the host application based on screen information managed by a business file, executing an operation procedure file corresponding to the screen, and Information and business information managed by the business file, Operating procedure control means for instructing the host emulator means to start the host application, wherein the operation procedure file is described in a macro language controlled by the operation procedure control means. The host emulator means is controlled to give an instruction equivalent to that of an operator, the synchronization control means and the hypertext synthesizing means are instructed to generate a Web application screen, and the host application screen is displayed. A procedure for performing control for transition is described. (C) Information required for generating a Web application screen is received from the operation procedure control unit and passed to the hypertext synthesizing unit to generate a Web application screen. Function to instruct the Web application The screen transition state of the Web application controlled by the Web browser in response to a connection request from the application and the screen transition state of the host application managed by the operation procedure control means are synchronized using synchronization control information. A synchronization control unit that at least includes a function of instructing the hypertext synthesizing unit to regenerate an appropriate Web application screen when synchronization is not achieved; and (d) the synchronization control. W using the information received from the means
hypertext synthesizing means for generating a screen of an eb application and transferring the screen to a relay service interface; and (e) relay service interface means for interfacing with the relay service means and another service means. A computer-readable recording medium which stores a program for executing the processing of each of the means (a) to (e) by a computer constituting the server device.