TWI479327B - Portal server system and portal server server system access method - Google Patents

Description

Server access method for portal server system and portal server system

The present invention relates to a server access method for centralizing a login from a client computer to an portal server system and an portal server system of a portal server.

In the past, in the rental of apartments, hospitals, public facilities and other facilities, there are systems for managing various devices such as air-conditioning equipment, fire-fighting equipment, anti-theft equipment, and lighting equipment. And because of the increasing number of complex facilities, large-scale systems for the unified management of multi-purpose halls, rental apartments, commercial facilities, houses, hotels and other buildings are increasing. In such a large-scale system, since the amount of information managed is large, it is necessary to effectively support the operator's daily maintenance business.

For example, in Patent Document 1, a description is given of a list of "day work contents", "day problem response", "daily spare parts, consumables use" on the client screen of the client computer. The status is the item related to the work performed on the day, and the statistical processing result such as the fault response status and the work status is displayed together, and the button for confirming the detailed information by the one-button operation is set, so that the segmentation operation is not required. It is easy to display the desired screen and confirm the device information.

In this case, in order to decentralize or redundantize the processing function, it is conceivable to set a plurality of servers on the network to concentrate the login from the client computer on the portal server. Fig. 12 and Fig. 13 show a first example and a second example of a portal server system which is conceived by the applicant of the present invention and which concentrates the login from the client computer on the portal server.

[First example (no duplexing)]

In FIG. 12, 1 is a client computer, 2 is a network, 3 is a first server (hereinafter referred to as server C), 4 is a second server (hereinafter referred to as server A), and 5 is the third. Server (hereinafter referred to as server B). The client computer 1 and the servers A, B, and C are connected to each other through the network 2.

In the first example, the server A has an entry site function for the server B, and the server C has an entry site function for the server A. That is, the client computer 1 can use the function of the server B by using the server A as the portal server and logging in to the server A, by using the server C as the portal server and logging in to the server C. , that is, the function of the server A can be used. In order to realize the portal function, the address A of the server B is registered in the server A, and the address #A of the server A is registered in the server C.

[The second case (with duplex)]

In FIG. 13, a server 5-1 (hereinafter referred to as a server B1) of a processing system and a server 5-2 (hereinafter referred to as a server B2) of a standby system are provided as a server B. The client computer 1 and the servers A, B1, B2, and C are connected to each other through the network 2.

In the second example, the server A has an entry site function for the servers B1 and B2, and the server C has an entry site function for the server A. That is, the client computer 1 can use the functions of the servers B1 and B2 by using the server A as the portal server and logging in to the server A, and registering the server by using the server C as the portal server. C, that is, the function of the server A can be used.

In order to realize the portal function, the addresses B1 and #B2 of the servers B1 and B2 are registered in the server A, and the address #A of the server A is registered in the server C. In addition, the server A has a normal check function for periodically checking whether communication with the servers B1, B2 is possible.

In the second example, when the client computer 1 of the server A is determined to be able to perform communication with the server B1 of the processing system by the normal check function of the server A, the servo of the processing system is used. The function of the device B1 is to use the function of the server B2 of the standby system when it is determined that communication with the server B1 of the processing system cannot be performed, but communication with the server B2 of the standby system can be performed.

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2002-312455

However, in the above-described portal server system, when it is desired to use the function of the server A, it is necessary to log in to the server C, and when it is desired to use the function of the server B (B1, B2), it is necessary to log in to the server. A, the functions of the servers A and B (B1, B2) cannot be used without interruption. In this regard, it is desirable to use the functions of server A and the functions of server B (B1, B2) by simply logging in to server C. In other words, it is desirable to use the server C as the upper portal server, and the functions of the servers A and B (B1, B2) can be used without interruption by merely registering the upper portal server.

In response to such a request, the applicant of the present invention has conceived a method of accessing the server B (B1, B2) from the server C through the server A using the portal function of the server A (method 1). Further, the address of the server B (B1, B2) is set in the server C, and the mode of accessing the server B (B1, B2) from the server C (method 2). However, in the first aspect and the second aspect, the following problems exist.

Next, a problem in the case where the mode 1 is employed in the first example of the portal server system described above will be described with reference to FIG. In the first example of the portal server system using the method 1, when the client computer 1 requests to access the server B after logging in to the server C, the server function of the server A is used to access the server. The server C accesses the server B through the server A. In this case, if the server A is turned off, the function of the server B cannot be used, and thus there is a problem that the operation rate is lowered.

Next, a problem in the case where the mode 2 is employed in the first example of the portal server system described above will be described with reference to FIG. 15. In the first example of the portal server system using this method 2, the address B of the server B is set in the server C. When the client computer 1 requests to access the server B after logging in to the server C, the client B accesses the server B via the server C based on the address #B set in the server C. In this case, the function of the server B can be used even if the server A is turned off, but the address B of the server B must be registered in the server C.

Next, a problem in the case where the mode 1 is employed in the second example of the above-described portal server system will be described with reference to FIG. In the second example of the portal server system using this method 1, when the client computer 1 registers with the server C and requests access to the server B (B1, B2), the server A portal is used. The function accesses the server B (B1, B2) from the server C through the server A.

At this time, when the client computer 1 determines that the communication with the server B1 of the processing system can be performed by the normal check function of the server A, the server B1 of the access processing system determines that the server B1 cannot be performed. When the communication between the server B1 of the system is handled, but the communication with the server B2 of the standby system can be performed, the server B2 of the standby system is accessed. In this case, if the server A is turned off, the functions of the server B (B1, B2) cannot be used, and thus there is a problem that the operation rate is lowered.

Next, a problem in the case where the mode 2 is employed in the second example of the above-described portal server system will be described with reference to FIG. In the second example of the portal server system using this method 2, the addresses B1 and #B2 of the servers B1 and B2 are set in the server C. Further, a normal check function for the servers B1, B2 is provided in the server C. If the client computer 1 requests to access the server B (B1, B2) after logging in to the server C, it accesses the server B through the server C according to the addresses #B1 and #B2 set in the server C. (B1, B2).

At this time, when the client computer 1 determines that the communication with the server B1 of the processing system can be performed by the normal check function of the server C, the server B1 of the access processing system determines that the server B1 cannot be performed. When the communication between the server B1 of the system is handled, but the communication with the server B2 of the standby system can be performed, the server B2 of the standby system is accessed. In this case, although the functions of the servers B1 and B2 can be used even if the server A is turned off, the addresses B1 and #B2 of the servers B1 and B2 must be registered in the server C. In addition, it is necessary to add a normal check function to the servers B1 and B2 in the server C.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an portal server system and an entry that can avoid unnecessary address registration and function addition to a higher-level portal server and achieve a sufficiently high operation rate. The server access method of the web server system.

In order to achieve such an object, the portal server system of the present invention (first invention) includes a first server whose address is registered in the second server of the first server, and the address is registered in the second server. The third server of the server, and the client computer that uses the first server as the portal server and accesses the second and third servers through the network, and is characterized in that the client computer has the second servo. The device address obtaining means acquires the address of the second server registered in the portal server when logging in to the portal server; and the third server address obtaining means, based on the second server address obtaining means The acquired address accesses the second server, and obtains the address of the third server registered in the second server; and the third server access means registers the access to the portal server, and requests access. In the third server, the third server is accessed based on the address obtained by the third server address obtaining means.

According to the first aspect of the invention, the first server is the portal server (the upper portal server) C, the second server is the server A, and the third server is the server B. In this case, when the client computer logs in to the portal server C, it acquires the address #A of the server A registered in the portal server C. Then, the server A is accessed based on the acquired address #A, and the address #B of the server B registered in the server A is acquired. If the client computer requests access to the server B after logging in to the portal server C, the server B is accessed based on the obtained address B of the server B.

As can be seen from the above operation, in the first invention, since the client computer acquires the address #B of the server B from the server A when logging in to the portal server C, after logging in to the portal server C, Server B can be accessed from the client computer even if server A is powered off. Moreover, it is not necessary to register the address #B of the server B in the portal server C.

Further, in the first aspect of the invention, when the client computer requests access to the server B after logging in to the portal server C, the client computer can directly access the address B of the server B obtained. Server B, but after confirming whether communication with server A or server B is possible, server B can be accessed based on the obtained address B of server B.

Further, in the first aspect of the invention, the portal server (server C) may include a second server capable communication check means, and periodically check whether the second server (server A) can be performed. And the second server communication recovery notification means, when it is determined that communication with the second server that is determined to be incapable of communication with the second server availability communication check means can be performed, the communication is resumed. The status of the communication with the second server is notified to the client computer; the client computer has the third server address re-acquisition means, and the second server communication recovery notification means on the portal server When the notification has been restored to the state in which communication with the second server is possible, the second server is accessed based on the address obtained by the second server address obtaining means, and the second server is acquired. The address of the third server (server B). By providing such a means, for example, when the address #Bnew of the new server Bnew is registered in the server A and the server A is restarted, it is possible to resume communication until the communication is possible. When the state of communication between the servers A is made, the client computer can again acquire the address #Bnew of the new server Bnew registered in the server A.

Further, the portal server system of the second aspect of the present invention includes a first server, the address of which is registered in the second server of the first server, and the address is registered in the processing system of the second server. The third server stores the address in the third server of the standby system of the second server, and the client that uses the first server as the portal server and accesses the second and third servers through the network. The terminal computer is characterized in that: the portal server has: a second server capable of communication checking means, periodically checking whether communication with the second server is possible, and notifying the client computer of the result of the checking; 2 server, with: 3rd server can communicate communication check means, periodically check whether communication with the third server of the processing system and the third server of the standby system can be performed; the client computer has: the second servo The device address obtaining means acquires the address of the second server registered in the portal server when logging in to the portal server; and the third server address obtaining means, based on the second server address obtaining means Obtained address The second server is obtained, and the address of the third server registered in the processing system of the second server and the third server of the standby system is obtained. The second server can determine whether or not the communication device is used to log in to the portal server. Then, when requesting access to the third server, it is determined whether or not communication with the second server can be performed based on the result of the inspection of the second server from the portal server, and the second server communication is possible. When the second server availability communication determining means determines that communication with the second server is possible, the third server access means obtains the address obtained by the second server address obtaining means. When the second server is obtained, the result of the inspection of the communication check means of the third server in the second server is obtained, and when the inspection result indicating that communication with the third server of the processing system is possible is obtained, 3. The third server of the address access processing system obtained by the server address acquisition means obtains communication with the third server of the processing system, but can perform the third servo with the standby system. The third server that accesses the standby system based on the address obtained by the third server address acquisition means and the third server access when the second server cannot communicate with the result of the communication check between the servers When the second server availability communication determining means determines that the communication with the second server is not possible, the third server of the address access processing system acquired by the third server address obtaining means is obtained.

According to the second aspect of the invention, the first server is the portal server (the upper portal server) C, the second server is the server A, and the third server of the processing system is the servo. When the client B1 sets the third server of the standby system to the server B2, the client computer acquires the address of the server A registered in the portal server C when logging in to the portal server C. A. Then, the server A is accessed based on the acquired address #A, and the addresses #B1 and #B2 of the servers B1 and B2 registered in the server A are acquired. When the client computer logs in to the portal server C and requests access to the server B (B1, B2), it judges whether or not communication with the server A can be performed based on the inspection result from the portal server C.

Here, if it is determined that communication with the server A is possible, the client computer accesses the server A based on the obtained address #A, and obtains whether or not the server A can perform the server B (B1). When the result of the communication between B and B2 is obtained, the result of the check indicating that communication with the server B1 of the processing system can be performed is obtained, and the server B1 of the processing system is accessed based on the acquired address #B1. . When the communication result indicating that communication with the server B1 of the processing system cannot be performed but the communication with the server B2 of the standby system can be performed, the standby system is accessed based on the acquired address #B2. Server B2. On the other hand, if it is determined that communication with the server A cannot be performed, the client computer accesses the server B1 of the processing system based on the acquired address #B1.

According to such an operation, in the second invention, since the client computer acquires the addresses #B1 and #B2 of the servers B1 and B2 from the server A when logging in to the portal server C, the login is performed. After accessing the server C, the server B (B1) can be accessed from the client computer even if the server A is powered off. In addition, it is not necessary to register the addresses #B1, #B2 of the servers B1, B2 in the portal server C. Further, it is not necessary to add a function (normal check function) for checking the possible state of communication with the servers B1, B2 in the server C.

In this case, as an unsustainable situation, there are: (1) the case where the server A (second server) and the server B1 (the third server of the processing system) are simultaneously turned off; and (2) when logging in When the server A (the second server) is not used, the server A (the second server) does not operate at all. However, this is considered to be rare in the system, so the access is canceled. In the second invention, even in consideration of these circumstances, a sufficiently high operation rate can be achieved.

Further, in the second aspect of the invention, the portal server (server C) may include a second server communication recovery notification means, and determine whether or not the second server can communicate with the inspection means. When communication between the second server (server A) that has previously been determined to be incapable of communication is notified to the client computer that the communication with the second server is enabled, the client computer has: The third server address re-acquisition means, according to the second server address, when the second server communication recovery notification means of the portal server is notified that the communication with the second server is resumed The address obtained by the acquisition means accesses the second server, and acquires the third server (server B1) registered in the processing system of the second server and the third server (server B2) of the standby system. By setting such a means, the address can be configured, for example, by registering the addresses #B1new and #B2new of the new servers B1new and B2new in the server A, and restarting the server A, and recovering Not until before being able to proceed When the state of communication between the server and the server A C communications, enabling the client computer to obtain registration of the new server in the server A is B1new again, B2new the address # B1new, # B2new.

The present invention can be implemented not only in the manner of an portal server system, but also in the manner of a server access method of an portal server system.

According to the present invention, when the client computer logs in to the portal server (the upper portal server), the address of the second server registered in the portal server is obtained, and the address is accessed based on the obtained address. When the second server acquires the address of the third server registered in the second server, when the third server is requested to be accessed after logging in to the portal server, even if the second server is turned off, It is also possible to access the third server from the client computer, thereby avoiding unnecessary address registration and function addition to the upper portal server, and achieving a sufficiently high operation rate.

Hereinafter, the present invention will be described in detail in conjunction with the drawings.

[Embodiment 1: No duplexing]

1 is a view showing an outline of a first embodiment (first embodiment) of an portal server system according to the present invention. In the first embodiment, as in the portal server system shown in the first example of FIG. 12, the address A of the server B is registered in the server A, and is registered in the server C. There is address A of server A.

Further, in the first embodiment, the server A is provided with a normal check function for periodically checking whether communication with the server B can be performed, and the server C is provided with periodic check whether or not it is possible to perform with the server A. The normal check function between the communications.

Further, in the first embodiment, the client computer 1 is provided as a unique function of the present embodiment, and is only registered in the upper portal server C by using the server C as the upper portal server. The function of the functions of the servers A and B (uninterrupted access function) can be used without interruption.

The client computer 1 is implemented by a hardware including a processor and a memory device, and a program that implements various functions in conjunction with the hardware. Specifically, a program is installed on the personal computer to cause the CPU to perform processing in accordance with the installed program.

Next, the non-stop access function of the client computer 1 will be described with reference to the program control maps shown in FIGS. 2 to 4. 2 is a program control diagram in a normal case where communication between the servers A, B, and C can be performed, and FIG. 3 is a case where the server A becomes unable to communicate after the client computer 1 logs in to the portal server C. The program control diagram below, FIG. 4 is a program control diagram when the client A is not able to communicate when the client computer 1 logs in to the portal server C.

[Normal situation: Figure 2]

The client computer 1 logs into the portal server C according to the login request from the operator (Fig. 2: arrow (1)) (Fig. 2: arrow (2)). At the time of registration, the client computer 1 acquires the address #A of the server A registered in the portal server C (Fig. 2: arrow (3)). Then, based on the address #A obtained from the portal server C, the server A is accessed, and the address #B of the server B registered in the server A is acquired (FIG. 2: arrow (4)).

If the operator selects the function of the server B after logging in to the portal server C (Fig. 2: arrow (5)), the client computer 1 asks the server A whether communication with the server B can be performed. (Figure 2: arrow (6)).

Here, if a check result indicating that communication with the server B can be performed is returned from the server A (FIG. 2: arrow (7)), the client computer 1 is based on the obtained address B of the server B#B , access server B (Figure 2: arrow (8)).

Further, when an inspection result indicating that communication with the server B cannot be performed is returned from the server A as an abnormality (FIG. 2: arrow (11)), the client computer 1 outputs a connection to the operator. Failed error message (Figure 2: arrow (12)).

[After logging in to the portal server C, server A becomes unable to communicate: Figure 3]

The client computer 1 logs into the portal server C according to the login request from the operator (Fig. 3: arrow (1)) (Fig. 3: arrow (2)). At the time of registration, the client computer 1 acquires the address #A (FIG. 3: arrow 3) of the server A registered in the portal server C. Then, the server A is accessed based on the address #A obtained from the portal server C, and the address #B of the server B registered in the server A is acquired (FIG. 3: arrow (4)).

Here, as a hypothetical case, it is considered that the server A cannot be communicated after logging in to the portal server C. In this case, the portal server C periodically checks whether communication with the server A can be performed, and if it is determined that communication with the server A is impossible (FIG. 3: arrow (5)) , the situation is notified to the client computer 1 (Fig. 3: arrow (6)).

Then, if the operator selects the function of the server B (FIG. 3: arrow (7)), the client computer 1 determines that the communication with the server A cannot be performed based on the notification result from the portal server C. (Fig. 3: arrow (8)), accessing the server B based on the obtained address B of the server B (Fig. 3: arrow (9)).

If the portal server C determines that it is in a communicable state between the server A that cannot communicate with the previous one (FIG. 3: arrow (10)), it has recovered to be able to communicate with the server A. The status of the status is notified to the client computer 1 (Figure 3: arrow (11)).

When the client computer 1 receives a notification indicating that the communication with the server A can be resumed from the portal server C, the server A accesses the server A based on the obtained address A of the server A. Get the address #B of the server B registered in the server A (Fig. 3: arrow (12)).

Then, if the operator selects the function of the server B (Fig. 3: arrow (13)), the client computer 1 asks whether the server A can communicate with the server B (Fig. 3: arrow (14) If the inspection result indicating that communication with the server B can be performed is returned from the server A (FIG. 3: arrow (15)), the servo is accessed according to the obtained address B of the server B. B (Figure 3: arrow (16)).

For example, when the address A of the new server Bnew is registered in the server A and the server A is restarted, the communication with the server A is temporarily unavailable. In such a case, upon returning to a state in which communication with the server A is possible, the address #Bnew of the new server Bnew registered in the server A is reacquired by the client computer 1, according to The re-acquired address of the server Bnew, #Bnew, can access the new server Bnew.

[When server A cannot communicate when logging in to portal server C: Figure 4]

The client computer 1 logs into the portal server C according to the login request from the operator (Fig. 4: arrow (1)) (Fig. 4: arrow (2)). At the time of registration, the client computer 1 acquires the address #A of the server A registered in the portal server C (FIG. 4: arrow (3)).

Here, as a hypothetical case, it may be a case where the server A cannot perform communication when logging in to the portal server C. In this case, the client computer 1 cannot obtain the address B of the server B from the server A. Moreover, in this case, the portal server C notifies the client computer 1 of the fact that communication with the server A cannot be performed (FIG. 4: arrow (4)).

After logging in to the portal server C, the operator selects the function of the server B (Fig. 4: arrow (5)), and the client computer 1 judges that the servo cannot be performed based on the notification result from the portal server C. Communication between A (Figure 4: arrow 6)).

Further, since the client computer 1 does not acquire the address #B of the server B, the access to the server B is canceled (FIG. 4: arrow (7)). Moreover, an error message that the connection failed is output to the operator (Fig. 4: arrow (8)).

That is, when logging in to the portal server C, the server A is in the power-off state, and after the server A is not restored at one time, it is judged to be rare based on the characteristics of the system, and therefore, the server is canceled. B accesses and outputs an error message indicating that the connection failed to the operator.

When the portal server C determines that communication with the server A that cannot communicate with the previous one is possible (FIG. 4: arrow (9)), the port server C has been restored to be able to communicate with the server A. The status of the communication is notified to the client computer 1 (Fig. 4: arrow (10)).

When the client computer 1 receives a notification indicating that the communication with the server A can be resumed from the portal server C, the client computer 1 accesses the servo based on the obtained address A of the server A. The device A acquires the address #B of the server B registered in the server A (Fig. 4: arrow (11)).

Then, if the operator selects the function of the server B (Fig. 4: arrow (12)), the client computer 1 asks whether the server A can communicate with the server B (Fig. 4: arrow (13)) If a check result indicating that communication with the server B can be performed is returned from the server A (FIG. 4: arrow (14)), the server B is accessed according to the obtained address B of the server B (B) Figure 4: Arrow (15)).

Further, in the above-described example, when the function of the server B is selected after logging in to the portal server C, it is determined whether or not the communication with the server A can be confirmed or performed. It is possible to confirm the communication with the server B, but it is also possible to directly access the server B based on the obtained address B of the server B. In this case, even if server B is accessed and server B does not respond, an error message indicating that the connection has failed is output to the operator.

As can be seen from the above operation, in the portal server system of the first embodiment, when the login to the portal server C is performed, the client computer 1 acquires the address B of the server B from the server A, Therefore, after logging in to the portal server C, the server B can be accessed from the client computer 1 even if the server A is turned off. In addition, it is not necessary to register the address #B of the server B in the portal server C.

[Embodiment 2: Duplexization]

FIG. 5 is a view showing an outline of a second embodiment (second embodiment) of the portal server system according to the present invention. In the second embodiment, as in the portal server system shown in the second example of FIG. 13, the address A of the server B1 of the processing system and the standby system are registered in the server A. The address #B2 of the server B2 registers the address #A of the server A in the server C.

Further, in the second embodiment, the server A is provided with a normal check function for periodically checking whether communication with the servers B1 and B2 is possible, and the server C is provided with periodic check whether or not the servo can be performed. The normal check function of communication between A and A.

Further, in the second embodiment, the client computer 1 is provided as a unique function of the present embodiment, and is only registered in the upper portal server C by using the server C as the upper portal server. The function of the functions of the servos A and B (B1, B2) can be used without interruption (no interruption access function).

The client computer 1 is implemented by a hardware including a processor and a memory device, and a program that implements various functions in conjunction with the hardware. Specifically, a program is installed on the personal computer to cause the CPU to perform processing in accordance with the installed program.

Next, the non-stop access function of the client computer 1 will be described with reference to the program control maps shown in FIGS. 6 to 8. 6 is a program control diagram in a normal case where communication between the servers A, B1, B2, and C can be performed, and FIG. 7 is a case where the server A becomes unable to communicate after the client computer 1 logs in to the portal server C. In the case of the program control map, FIG. 11 is a program control diagram when the server A is not able to communicate when the client computer 1 logs in to the portal server C.

[Normal situation: Figure 6]

The client computer 1 logs in to the portal server C in accordance with the login request from the operator (Fig. 6: arrow (1)) (Fig. 6: arrow (2)). At the time of registration, the client computer 1 acquires the address #A of the server A registered in the portal server C (FIG. 6: arrow (3)). Then, based on the address #A obtained from the portal server C, the server A is accessed, and the addresses #B1 and #B2 of the servers B1 and B2 registered in the server A are acquired (FIG. 6: arrow ( 4)).

If the operator selects the function of the server B after logging in to the portal server C (Fig. 6: arrow (5)), the client computer 1 asks the server A whether it can perform with the server B (B1, B2). Communication between (Figure 6: arrow (6)).

Here, if the inspection result indicating that communication with the server B1 of the processing system can be performed is returned from the server A (FIG. 6: arrow (7)), the client computer 1 determines the bit of the server B1 according to the position. Address #B1, access to the server B1 of the processing system (Fig. 6: arrow (8)).

In addition, in the case of an abnormality, the server A returns a result indicating that communication with the server B1 of the processing system cannot be performed, but the result of the communication with the server B2 of the standby system can be performed (FIG. 6) : arrow (11)), the client computer 1 accesses the server B2 of the standby system based on the obtained address BB of the server B2 (FIG. 6: arrow (12)).

In addition, in the case of an abnormality, when the server A returns a check result indicating that communication with the server B1 of the processing system and communication with the server B2 of the standby system cannot be performed (FIG. 6: Arrow (15)), the client computer 1 outputs an error message that the connection failed to the operator (Fig. 6: arrow (16)).

[After logging in to the portal server C, server A becomes unable to communicate: Figure 7]

The client computer 1 logs in to the portal server C in accordance with the login request from the operator (Fig. 7: arrow (1)) (Fig. 7: arrow (2)). At the time of registration, the client computer 1 acquires the address #A (FIG. 7: arrow 3) of the server A registered in the portal server C. Then, based on the address #A obtained from the portal server C, the server A is accessed, and the addresses #B1 and #B2 of the servers B1 and B2 registered in the server A are acquired (FIG. 7: arrow (4) )).

Here, as a hypothetical case, it may be considered that the server A fails to communicate after logging in to the portal server C. In this case, the portal server C periodically checks whether communication with the server A can be performed, and if it is determined that communication with the server A is impossible (FIG. 7: arrow (5)), The situation is notified to the client computer 1 (Fig. 7: arrow (6)).

Then, if the operator selects the function of the server B (FIG. 7: arrow (7)), the client computer 1 judges that communication with the server A cannot be performed based on the notification result from the portal server C ( Fig. 7: Arrow (8)), accessing the server B1 of the processing system based on the obtained address #B1 of the server B1 (Fig. 7: arrow (9)).

If the portal server C determines that communication with the server A that has not previously communicated is possible (FIG. 7: arrow (10)), it is notified that the communication with the server A can be resumed. Give the client computer 1 (Figure 7: arrow (11)).

If the client computer 1 receives a notification indicating that the communication with the server A can be resumed from the portal server C, the server is accessed according to the obtained address A of the server A. A. The addresses #B1 and #B2 of the servers B1 and B2 registered in the server A are acquired (FIG. 7: arrow (12)).

Then, if the operator selects the function of the server B (Fig. 7: arrow (13)), the client computer 1 asks whether the server A can communicate with the server B (B1, B2) (Fig. 7 : arrow (14)), if the result of the check indicating that communication with the server B1 can be performed is returned from the server A (Fig. 7: arrow (15)), based on the obtained address B1 of the server B1 Access the server B1 of the processing system (Fig. 7: arrow (16)).

For example, when the new server B1new, B2new addresses #B1new, #B2new are registered in the server A, and the server A is restarted, communication with the server A is temporarily impossible. In such a case, when the state of communication with the server A can be restored, the addresses #B1new, #B2new of the new servers B1new and B2new registered in the server A are used by the client computer. 1 Re-acquisition, according to the re-obtained addresses B1new, B2new addresses #B1new, #B2new, can access the new server Bnew (B1new, B2new).

[When server A cannot communicate when logging in to portal server C: Figure 8]

The client computer 1 logs in to the portal server C in accordance with the login request from the operator (Fig. 8: arrow (1)) (Fig. 8: arrow (2)). At the time of registration, the client computer 1 acquires the address #A of the server A registered in the portal server C (Fig. 8: arrow (3)).

Here, as a hypothetical case, it may be a case where the server A cannot perform communication when logging in to the portal server C. In this case, the client computer 1 cannot obtain the addresses #B1, #B2 of the servers B1, B2 from the server A. Moreover, in this case, the portal server C notifies the client computer 1 of the fact that communication with the server A cannot be performed (Fig. 8: arrow (4)).

If the operator selects the function of the server B after logging in to the portal server C (Fig. 8: arrow (5)), the client computer 1 judges that it cannot be performed based on the notification result from the portal server C. Communication between server A (Fig. 11: arrow 6)).

Further, since the client computer 1 does not acquire the addresses #B1 and #B2 of the servers B1 and B2, the access to the server B (B1, B2) is canceled (FIG. 11: arrow (7)). Moreover, an error message that the connection failed is output to the operator (Fig. 8: arrow (8)).

That is, when logging in to the portal server C, the server A is turned off, and after the server A is not restored at a time, it is judged to be rare based on the characteristics of the system, and therefore, the servo is canceled. The access of the device B (B1, B2) outputs an error message that the connection failed to the operator.

When the portal server C determines that communication with the server A that cannot communicate with the previous communication is possible (FIG. 8: arrow (9)), it has been restored to be able to communicate with the server A. The status of the communication is notified to the client computer 1 (Fig. 8: arrow (10)).

When the client computer 1 receives a notification indicating that the communication with the server A can be resumed from the portal server C, the client computer 1 accesses the servo based on the obtained address A of the server A. The device A acquires the addresses #B1 and #B2 of the servers B1 and B2 registered in the server A (Fig. 8: arrow (11)).

Then, if the operator selects the function of the server B (Fig. 8: arrow (12)), the client computer 1 asks whether the server A can communicate with the server B (B1, B2) (Fig. 8 : arrow (13)), if the inspection result indicating that communication with the server B1 of the processing system can be performed is returned from the server A (Fig. 8: arrow (14)), the address of the obtained server B1 is obtained. #B1, access the server B1 of the processing system (Fig. 8: arrow (15)).

As can be seen from the above operation, in the portal server system of the second embodiment, when logging in to the portal server C, the client computer 1 acquires the addresses of the servers B1 and B2 from the server A# B1 and #B2, so after logging in to the portal server C, the server B (B1) can be accessed from the client computer 1 even if the server 1 is turned off. In addition, it is not necessary to register the addresses #B1, #B2 of the servers B1, B2 in the portal server C. Further, it is not necessary to add a normal check function for checking the possible state of communication with the servers B1, B2 in the server C.

FIG. 9 is a flowchart showing the processing operation of the client computer 1 when the function of the server B is selected after logging in to the server C in the above-described first and second embodiments.

When the client computer 1 selects the function of the server B after logging in to the server C, the client computer 1 calculates the number N of the server B based on the acquired address of the server B (step S101). In this case, in the first embodiment, the count is N = 1, and in the second embodiment, the count is N = 2. In addition, when logging in to server C, if server A cannot communicate and cannot obtain the address of server B, then N=0.

Then, the client computer 1 checks if the number N of the server B is N>0 (step S102). Here, if the number N of the server B is N=0 (NO in step S102), the access to the server B is canceled, and the processing is terminated (step S103).

If the number N of the server B is N>0 (YES in step S102), it is checked whether communication with the server A is possible (step S104), and communication with the server A cannot be performed (step S104). In the case of NO), n=1 is set (step S105), and the nth server of the nth station is accessed based on the acquired address of the server B (step S106).

For example, in the first embodiment, if communication with the server A cannot be performed (YES in step S104), the server B is accessed based on the obtained address B of the server B (step S106). In the second embodiment, if communication with the server A cannot be performed (NO in step S104), the server B1 of the processing system is accessed based on the address #B1 of the acquired server B1 (step S106). .

On the other hand, if communication with the server A can be performed (YES in step S104), the inspection result of whether or not communication with the server B can be performed is obtained from the server A (step S107). Then, n=1 is set (step S108), and it is checked whether communication with the nth station of the server B can be performed (step S109).

Here, if the result of the check that the communication with the nth station of the server B can be performed is obtained (YES in step S109), the nth server B is accessed based on the acquired address of the server B. (Step S106). If the result of communication with the nth station of the server B is not obtained (NO in step S109), n=n+1 is set (step S110), and the check in step S109 is repeated. Further, in the process, if n > N (YES in step S111), the access to the server B is canceled, and the processing is terminated (step S112).

For example, in the first embodiment, if communication with the server B is possible (YES in step S109), the server B is accessed based on the acquired address B of the server B (step S106). In the second embodiment, if communication with the server B1 is possible (YES in step S109), the server B1 of the processing system is accessed based on the acquired address #B1 of the server B1 (step S106). In the second embodiment, if communication with the server B1 is not possible, but communication with the server B2 is possible (YES in step S109), the address #B2 of the obtained server B2 is obtained. The server B2 of the standby system is accessed (step S106). In the second embodiment, if neither of the servers B1 and B2 is capable of communication (YES in step S111), the access to the server B (B1, B2) is canceled, and the processing is terminated (step S112).

Fig. 10 is a functional block diagram showing main parts of a client computer and a server in the portal server system of the first embodiment. In the first embodiment, the portal server C includes: a second server availability communication check means 3A, a second server communication recovery notification means 3B, and a memory 3C storing the address A of the server A, wherein The second server availability communication check means 3A periodically checks whether communication with the server A can be performed, and notifies the client computer 1 of the result of the check, and the second server communication recovery notification means 3B determines that When communication with the server A that is determined to be incapable of communication by the second server availability communication check means 3A is performed, the state in which communication with the server A can be resumed can be performed. , notify the client computer 1. Further, the server A has a third server availability communication check means 4A for periodically checking whether communication with the server B can be performed, and a memory 4B for storing the address #B of the server B.

Further, in the first embodiment, the client computer 1 includes the second server address obtaining means 1A, the third server address obtaining means 1B, the third server access means 1C, and the third server address. In addition, the second server address obtaining means 1A acquires the address #A of the server A registered in the portal server C when logging in to the portal server C. The server address obtaining means 1B accesses the server A based on the address #A acquired by the second server address obtaining means 1A, and acquires the address of the server B registered in the server A# B. When the third server access means 1C requests to access the server B after logging in to the portal server C, the address #B obtained by the third server address obtaining means 1B is stored. The server B, the third server address re-acquisition means 1D, and the second server communication recovery notification means 3B from the portal server 3 are notified that the communication with the server A can be resumed. In the case of the state, the access servo is accessed based on the address #A obtained by the second server address obtaining means 1A. A, and the acquired address is registered in the server A, the server B #B.

In addition, in this example, the third server access means 1C can check the result of the communication by the second server from the portal server C, and the third server can communicate with the server. When it is determined that the communication with the server A and the communication with the server B can be performed as a result of the inspection of 4A, the access is made based on the address #B obtained by the third server address obtaining means 1B. Server B.

In the first embodiment, it is not necessary to confirm the result of the inspection by the second server availability communication check means 3A from the portal server C in the third server access means 1C, and the third servo in the server A. The result of the check by the communication check means 4A may be that the server B is directly accessed based on the obtained address B of the server B when the server B is requested to be accessed.

Fig. 11 is a functional block diagram showing the main parts of a client computer and a server in the portal server system of the second embodiment. In the second embodiment, the portal server C has the second server availability communication check means 3A, the second server communication recovery notification means 3B, and the memory 3C storing the address #A of the server A, wherein The second server availability communication check means 3A periodically checks whether communication with the server A can be performed, and notifies the client computer 1 of the result of the check, and the second server communication recovery notification means 3B determines that When communication with the server A that is determined to be incapable of communication by the second server availability communication check means 3A is performed, the state of communication with the server A can be restored. Notify the client computer 1. Further, the server A has a third server availability communication check means 4A for periodically checking whether communication with the server B1 and the server B2 is possible, and addresses #B1, #B2 of the storage servers B1 and B2. Memory 4B.

Further, in the second embodiment, the client computer 1 has the second server address obtaining means 1A, the third server address obtaining means 1B, the second server availability communication determining means 1E, and the second server communication possibility. The third server access means 1C1 at the time of the third server access means 1C2 and the third server address re-acquisition means 1D when the second server is not communicating, wherein the second server address is obtained When the means 1A logs in to the portal server C, it acquires the address #A of the server A registered in the portal server C, and the third server address obtaining means 1B is based on the second server bit. The address #A obtained by the address obtaining means 1A accesses the server A, and acquires the addresses #B1 and #B2 of the servers B1 and B2 registered in the server A, and the second server can determine whether or not the communication can be made. In the case of requesting access to the server B after logging in to the portal server C, the means 1E determines whether or not the server can be performed based on the result of the check by the second server availability communication check means 3A from the portal server C. Communication between A, the third server when the second server communicates When the second server availability communication determining means 1E determines that communication with the server A is possible, the means 1C1 accesses the server based on the address obtained by the second server address obtaining means 1A. A. Acquire the result of the check in the third server availability communication check means 4A in the server A, and obtain the result of the check indicating that communication with the server B1 is possible, based on the third server bit. When the address #B1 obtained by the address obtaining means 1B accesses the server B1, when the communication result with the server B1 is not available, but the result of the communication with the server B2 is obtained, According to the address #B2 acquired by the third server address obtaining means 1B, the server B2 is accessed, and the third server access means 1C2 when the second server is not communicating is in the second server. 1E determines that the communication with the server A cannot be performed, and accesses the server B1 based on the address #B1 acquired by the third server address obtaining means 1B, and the third server address reacquisition means 1D in the second server from the portal server 3 When the server communication recovery notification means 3B has notified that the communication with the server A can be resumed, the server A is accessed based on the address #A acquired by the second server address obtaining means 1A. And obtain the addresses #B1, #B2 of the servers B1, B2 registered in the server A.

1. . . Client computer

2. . . network

3. . . The first server (entry server C)

4. . . 2nd server (server A)

5. . . 3rd server (server B)

5-1. . . Processing system's third server (server B1)

5-2. . . The third server of the standby system (server B2)

1A. . . The second server address acquisition means

1B. . . The third server address acquisition means

1C. . . Third server access means

1C1. . . The third server access means when the second server communication is possible

1C2. . . The third server access means when the second server communication is not possible

1E. . . The second server can communicate judgment means

1D. . . The third server address re-acquisition means

3A. . . Can the second server be able to check the communication?

3B. . . The second server communication recovery notification means

3C. . . Memory

4A. . . The third server can check the communication means

4B. . . Memory

FIG. 1 is a view showing an outline of a first embodiment (first embodiment (no duplexing)) of the portal server system according to the present invention.

2 is a program control diagram (program control diagram in a normal case) for explaining the non-stop access function of the client computer in the portal server system according to the first embodiment.

3 is a program control diagram for explaining the non-stop access function of the client computer in the portal server system according to the first embodiment (after logging in to the portal server C, the server A becomes incapable of communication. Program control chart in case).

4 is a program control diagram for explaining the non-stop access function of the client computer in the portal server system according to the first embodiment (When logging in to the portal server C, the server A becomes incapable of communication. Program control chart in case).

FIG. 5 is a view showing an outline of a second embodiment (the second embodiment (having duplexing)) of the portal server system according to the present invention.

Fig. 6 is a program control diagram (program control map in a normal case) for explaining the non-stop access function of the client computer in the portal server system according to the second embodiment.

7 is a program control diagram for explaining the non-stop access function of the client computer in the portal server system according to the second embodiment (after logging in to the portal server C, the server A becomes incapable of communication. Program control chart in case).

8 is a program control diagram for explaining the non-stop access function of the client computer in the portal server system according to the second embodiment (When logging in to the portal server C, the server A becomes incapable of communication. Program control chart in case).

FIG. 9 is a flowchart showing a processing operation in the client computer when the function of the server B is selected after logging in to the server C in the first and second embodiments.

Fig. 10 is a functional block diagram showing main parts of a client computer and a server in the portal server system of the first embodiment.

Fig. 11 is a functional block diagram showing the main parts of a client computer and a server in the portal server system of the second embodiment.

Fig. 12 is a view showing a first example of an portal server system in which login from a client computer is concentrated in an portal server;

Fig. 13 is a view showing a second example of the portal server system in which the login from the client computer is concentrated in the portal server.

FIG. 14 is a diagram for explaining a problem in the case where the mode 1 is employed in the first example of the portal server system.

FIG. 15 is a diagram for explaining a problem in the case where the mode 2 is employed in the first example of the portal server system.

FIG. 16 is a diagram for explaining a problem in the case where the mode 1 is employed in the second example of the portal server system.

FIG. 17 is a diagram for explaining a problem in the case where the mode 2 is employed in the second example of the portal server system.

1. . . Client computer

3. . . The first server (entry server C)

4. . . 2nd server (server A)

5. . . 3rd server (server B)

Claims (6)

An portal server system having a first server, the address of which is registered in the second server of the first server, the address of which is registered in the third server of the second server, and the first server The server is a client server that accesses the second and third servers through the network as a portal server, and is characterized in that: the second server communicates with the possibility of checking whether or not the communication check means can be performed, and the periodic check can be performed. The communication between the second server and the second server communication recovery notification means determines that the communication with the second server is possible to check whether the communication check means can determine that the second servo cannot be communicated before. When communicating between the devices, the status of the communication with the second server is restored to the client computer; the client computer has the second server address acquisition means, and is registered to When the portal server accesses the server, the address of the second server registered in the portal server is obtained; and the third server address obtaining means stores the address obtained by the second server address obtaining means. take The second server acquires the address of the third server registered in the second server; and the third server access means registers with the portal server and requests access to the third server And accessing the third server based on the address obtained by the third server address obtaining means; and the third server address re-acquisition means, and the second server communication recovery notification means on the portal server The notification has been restored to be able to proceed with When the state of the communication between the second server is reached, the second server is accessed based on the address obtained by the second server address obtaining means, and the third server registered in the second server is acquired. Address. An portal server system having a first server, the address of which is registered in the second server of the first server, and the address is registered in the third server of the processing system of the second server. The address is registered in the third server of the standby system of the second server, and the client computer that accesses the second and third servers through the network as the portal server and the first server is characterized. The portal server includes: a second server capable communication check means, periodically checking whether communication with the second server is possible, and notifying the client computer of the result of the check; The server includes: a third server capable communication check means, and periodically checks whether communication with the third server of the processing system and the third server of the standby system is possible; the client computer has: 2. The server address obtaining means acquires the address of the second server registered in the portal server when logging in to the portal server; and the third server address obtaining means according to the second server Address acquisition means Accessing the address of the second server, and obtain the third server is registered in the processing system of the second server and the third server the address of the standby system; When the second server can log in to the portal server and request access to the third server, the second server can determine whether or not the third server can access the third server based on the inspection result of the second server from the portal server. Whether communication with the second server is performed or not, and the third server access means when the second server is in communication, and the second server availability communication determining means determines that the second server is available In the communication between the two servers, the second server is accessed based on the address obtained by the second server address obtaining means, and the result of checking the communication check means of the third server in the second server is obtained. When the result of the inspection of the communication with the third server of the processing system is indicated, the third server of the processing system is accessed based on the address obtained by the third server address obtaining means. When communication with the third server of the processing system is not possible, the result of the communication with the third server of the standby system can be obtained based on the third server address acquisition means. The address is accessed by the third server of the standby system; and the third server access means when the second server is not communicating, and the second server availability communication determining means determines that the second server cannot be performed. In the communication between the three, the third server of the processing system is accessed based on the address obtained by the third server address obtaining means. The portal server system of claim 2, wherein the portal server includes: a second server communication recovery notification means, and is determined to be capable of performing communication with the second server. I was previously judged to be unable to communicate When the communication between the second server is resumed, the status of the communication with the second server is restored to the client computer; the client computer has: the third server address When the second server communication recovery notification means of the portal server is notified that the communication with the second server is enabled, the second server address obtaining means is used. The acquired address accesses the second server, and acquires the address of the third server registered in the processing system of the second server and the third server of the standby system. A server access method for an portal server system, wherein the portal server system includes a first server, and an address is registered in a second server of the first server, and an address is registered in the second server The third server of the device, and the client computer that accesses the second and third servers through the network as the portal server, and is configured to execute on the portal server : The second server can check the communication check procedure, periodically check whether communication with the second server is possible, and the communication recovery notification step, and determine whether the communication check procedure with the second server can be performed before When it is determined that communication between the second server that cannot communicate is notified, the status of communication with the second server is restored to the client computer; and the client computer executes: 2 server address obtaining step, when logging in to the portal server, obtaining the address of the second server registered in the portal server; a third server address obtaining step of accessing the second server based on the address obtained by the second server address obtaining step, and acquiring the address of the third server registered in the second server a third server access step, after logging in to the portal server and requesting access to the third server, accessing the third server based on the address obtained by the third server address obtaining step And a third server address re-acquisition step, based on the second server bit when the communication recovery notification step of the portal server is notified that the communication with the second server is resumed The address obtained by the address obtaining step accesses the second server, and acquires the address of the third server registered in the second server. A server access method for an portal server system, wherein the portal server system includes a first server, and an address is registered in a second server of the first server, and an address is registered in the second server The third server of the processing system of the device registers the address in the third server of the standby system of the second server, and accesses the first server as an portal server and accesses the second server through the network. And a client computer of the third server, wherein the portal server performs a communication check procedure of the second server, and periodically checks whether communication with the second server is possible, and The result of the check is notified to the client computer; in the second server, the third server can perform a communication check step, and periodically check whether the process can be performed. Communication between the third server of the processing system and the third server of the standby system; execution of the second server address acquisition step on the client computer, and registration when logging in to the portal server The address of the second server in the portal server; the third server address obtaining step, accessing the second server based on the address obtained in the second server address obtaining step, and obtaining Registering the address of the third server of the processing system of the second server and the third server of the standby system; the second server is capable of determining the communication, and logging in to the portal server to request access In the third server, it is determined whether or not communication with the second server can be performed based on the inspection result notified by the second server of the portal server, and the second server can communicate with the second server. In the third server access step, when the second server availability communication determining step determines that communication with the second server is possible, the address obtained by the second server address obtaining step Accessing the second server Obtaining a result of the inspection of the communication check procedure of the third server in the second server, and obtaining a result of the inspection indicating that communication with the third server of the processing system is possible, based on the third server bit The address obtained in the address obtaining step accesses the third server of the processing system, and the communication between the third server and the third server of the processing system is obtained, but the third server can be connected to the standby system. When the result of the communication is checked, the third server of the standby system is accessed based on the address obtained in the third server address obtaining step; And a third server access step when the second server communication is not possible, and when the second server availability communication determining step determines that communication with the second server is impossible, according to the third server bit The address obtained by the address acquisition step accesses the third server of the processing system. The server access method of the portal server system of claim 5, wherein the portal server performs a communication recovery notification step, and determines whether communication with the second server is possible. When the communication between the second server that is determined to be unreachable before the step is determined, the status of the communication with the second server is restored to the client computer; the client computer Execution: a third server address reacquisition step, according to the second server when the communication recovery notification step of the portal server is notified that the communication with the second server is resumed The address obtained by the address obtaining step accesses the second server, and acquires the address of the third server registered in the processing system of the second server and the third server of the standby system.