CN111797595A - A method and device for generating OFD layout page based on XML template - Google Patents

Abstract

The present invention provides a method for generating an OFD layout page based on an XML template, which includes the following steps: obtaining an XML template, where the XML template includes a series of metadata; reading the metadata in sequence; It is converted into a standard-compliant OFD file; the OFD file is output. The present invention generates OFD layout pages through XML templates, has the advantages of convenience, flexibility and uniformity, and helps users to generate OFD files with the same layout display effect in batches.

Description

A method and device for generating OFD layout page based on XML template

technical field

The present invention relates to the field of computer technology, in particular, to a method and device for generating OFD layout pages based on XML templates.

Background technique

OFD, Open Fixed-layout Document (abbreviation: OFD), is a Chinese layout document format defined by my country's national standard "GB/T 33190-2016 Electronic File Storage and Interchange Format Layout Document". OFD meets the needs of my country's informatization construction and is becoming one of the basic standards for informatization applications in all walks of life in my country. The so-called "layout document" means that the page content it describes has fixed position, size, color and other appearance information to ensure that the display effect of the page content on all terminals is completely fixed and consistent.

OFD is a compressed package file, using ZIP compression format, the file suffix is ".ofd", so in essence, OFD is a ZIP compressed package. According to the standard definition, OFD contains two types of data files: one is document and page information stored in XML format, which defines the basic information of the layout document; the other is resource information stored in other formats, such as fonts , image, multimedia and other formats of resource files.

XML, Extensible Markup Language (Extensible Markup Language, abbreviation: XML), is an internationally popular general-purpose data description language format, which has many advantages such as simplicity, easy understanding, and easy application. OFD adopts it as the basic information description format of layout documents, which can be said to be the core data format of OFD.

At present, there is an important requirement in OFD layout applications: files in a fixed layout format need to be generated in batches. The fixed layout format means that the layout format is the same but the data content is different. There are a large number of such application scenarios in practical applications, such as electronic invoices or electronic vouchers. They are characterized by a completely fixed layout format, but the content of invoices or vouchers is different, which is a huge and long-term application that needs to be generated. The current solution is to directly generate OFD full-page data through a computer program. The computer program needs to be redesigned every time, and then all the data are regenerated. The application process is complicated and the execution efficiency is low.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention provides a method and apparatus for generating an OFD layout page based on an XML template.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a method for generating OFD layout pages based on XML templates, comprising the following steps: obtaining an XML template, wherein the XML template includes a series of metadata; sequentially reading the metadata data; convert it into a standard-compliant OFD file according to the metadata type; output the OFD file.

As a preferred solution, before the obtaining of the XML template, the method further includes generating an XML template, and the specific steps are: obtaining original data; converting it into metadata according to the type of the original data; combining a plurality of the metadata in turn to generate XML templates.

As a preferred solution, each of the metadata includes one or more of the following information: metadata name, metadata value, metadata type, metadata location and metadata attribute.

As a preferred solution, converting the metadata into a standard OFD file according to the type of the metadata is specifically: when the metadata is a text type, typesetting the characters in the metadata, and obtaining each The position information of the character is then output in the form of OFD; when the metadata is a picture type, the picture in the metadata is calculated in the form of OFD after the scaling ratio and rotation coefficient are calculated.

As a preferred solution, an embedded font is also included, and a specified font is added to the OFD file.

As a preferred solution, the method can also be applied to generate PDF layout pages.

The invention also discloses a device for generating an OFD layout page based on an XML template, comprising: an acquisition module for acquiring an XML template, where the XML template includes a series of metadata; a reading module for sequentially reading the metadata data; a conversion module for converting the metadata into a standard OFD file according to the type of the metadata; an output module for outputting the OFD file.

As a preferred solution, a generation module is also included, and the generation module is configured to obtain the original data, convert it into metadata according to the type of the original data, and then combine a plurality of the metadata in sequence to generate an XML template.

As a preferred solution, the conversion module includes a text conversion module and an image conversion module; the text conversion module is used to typeset the characters in the metadata, and obtain the position information of each character and output it in the form of OFD; The picture conversion module is used for calculating the scaling ratio and the rotation coefficient of the picture in the metadata, and then outputting the picture in the form of OFD.

As a preferred solution, an embedded module is also included, and the embedded module is used for adding a specified font to the OFD file.

Compared with the prior art, the beneficial effects of the present invention include: template the layout page, make the content of the fixed part of the layout page into an OFD page template, and then supplement the variable content to the OFD layout page, and template the layout page to make the layout design. After separation, the layout is designed through the template designer, that is, the content of the fixed layout is expressed, and the location, size and other rendering effects of the variable content part are also defined, so as to simplify the application and improve the execution during batch generation. Efficiency, has the advantages of convenience, flexibility and unification, and helps users to generate OFD files with the same layout display effect in batches.

Description of drawings

The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the accompanying drawings are for illustrative purposes only, and are not intended to limit the protection scope of the present invention. In the drawings, the same reference numerals are used to refer to the same parts. in:

1 is a flowchart of a method for generating an OFD layout page based on an XML template in an embodiment of the present invention;

2 is a flowchart of a method for generating an XML template in an embodiment of the present invention;

3 is a structural diagram of a device for generating OFD layout based on an XML template in an embodiment of the present invention;

FIG. 4 is a structural diagram of a conversion module in an embodiment of the present invention.

Detailed ways

It is easy to understand that, according to the technical solutions of the present invention, without changing the essential spirit of the present invention, those of ordinary skill in the art can propose various alternative structures and implementations. Therefore, the following specific embodiments and accompanying drawings are only exemplary descriptions of the technical solutions of the present invention, and should not be regarded as all of the present invention or as limitations or restrictions on the technical solutions of the present invention.

An embodiment according to the present invention is shown in conjunction with FIG. 1 . A method for generating an OFD layout page based on an XML template, comprising the following steps:

S110: Obtain an XML template, where the XML template includes a series of metadata.

Specifically, each metadata includes the following information:

Metadata name, each metadata name must be unique and a readable string.

The metadata value refers to the data value defined by the metadata.

Metadata type refers to the metadata value type, which can be extended, such as text (ie, string), image, date, etc.

Metadata positioning, used to specify the position and size (width, height) of the metadata value in the layout page.

Metadata attributes, this is related to the metadata type. Different types of attributes are set differently. For example, the metadata attributes of text types must include font, font size, text color, font style (bold, italic), etc., and the data attributes of image types. Can have properties such as transparency or rotation angle.

As shown in Figure 2, before acquiring the XML template, it also includes generating an XML template, and the specific steps are:

S210: Obtain raw data.

S220: Convert the original data into metadata respectively according to the type. For the binary type of the original data, encoding conversion is required to convert it into a data expression form that conforms to the XML format standard. The common encoding is converted to BASE-64. For example, the data value of image or two-dimensional code type needs to be encoded. .

S230: Combine multiple metadata in turn to generate an XML template.

In this embodiment, a sample of XML template metadata is as follows:

S120: Read metadata in sequence, starting from the first metadata of the XML template, and sequentially read one metadata at a time.

S130: Convert it into a standard OFD file according to the type of metadata. For example, the type of text needs to be typeset, and then the position information of each character is obtained and output in the form of OFD, and the image needs to be calculated in the form of OFD after scaling and rotation coefficient. output.

If the XML template contains data for multiple pages, after one page is processed, the next page is processed until the end.

S140: Output the OFD file.

According to the OFD standard, embedded fonts should be used for archived OFD files to ensure that the OFD files display the same effect on all platforms. Therefore, embedded fonts are used for the metadata type of text. The so-called embedded font is to add the character font data used in the specified font to the OFD file. The detailed processing process of the embedded font does not belong to the protection scope of this patent, and will not be repeated here.

It should be understood that the present invention discloses a method for generating an OFD layout page based on an XML template, which helps an application user to generate OFD files with the same layout display effect in batches. During batch generation, each XML template metadata defines an OFD file, and the same generation process is performed, and so on until all are generated. XML template metadata may come from a database, a network, or a combined data environment or other data environment. The method can also be applied to layout pages in formats such as PDF based on XML templates.

As shown in Figure 3 and Figure 4, the present invention also discloses a device for generating OFD layout pages based on an XML template, including:

an obtaining module 110, configured to obtain an XML template, where the XML template includes a series of metadata;

a reading module 120, configured to sequentially read metadata;

The conversion module 130 is used to convert the metadata into a standard OFD file according to the type of the metadata. The conversion module 130 includes a text conversion module 1301 and an image conversion module 1302; the text conversion module 1301 is used for typesetting the characters in the metadata, Get the position information of each character and then output it;

The picture conversion module 1302 is configured to calculate the scaling ratio and the rotation coefficient of the picture in the metadata before outputting.

The output module 140 is used for outputting the OFD file.

In this embodiment, the apparatus further includes a generating module 100, which is used for acquiring the original data, converting it into metadata according to the type of the original data, and then combining the metadata in sequence to generate an XML template.

Also included is an embedding module 150 for adding specified fonts to the OFD file.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above may refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or a part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

The technical scope of the present invention is not limited to the content in the above description, and those skilled in the art can make various deformations and modifications to the above-mentioned embodiments without departing from the technical idea of the present invention, and these deformations and modifications should belong to within the protection scope of the present invention.

Claims (10)

1. A method for generating an OFD format page based on an XML template is characterized by comprising the following steps:

acquiring an XML template, wherein the XML template comprises a series of metadata;

sequentially reading the metadata;

converting the metadata into an OFD file meeting the standard according to the type of the metadata;

and outputting the OFD file.

2. The method for generating an OFD layout page based on the XML template according to claim 1, further comprising generating the XML template before the obtaining the XML template, the specific steps being:

acquiring original data;

respectively converting the original data into metadata according to the types of the original data;

and combining a plurality of metadata in sequence to generate an XML template.

3. The method for generating an OFD layout page based on an XML template according to claim 1, wherein each of the metadata includes one or more of the following information: metadata name, metadata value, metadata type, metadata location, and metadata attributes.

4. The method for generating an OFD layout page based on the XML template according to claim 3, wherein the converting the metadata into the standard-compliant OFD file according to the type of the metadata specifically comprises:

when the metadata is of a character type, typesetting the characters in the metadata, acquiring the position information of each character and then outputting the position information in an OFD (office format description) form;

and when the metadata is of a picture type, the pictures in the metadata are output in an OFD form after the scaling and the rotation coefficient are calculated.

5. The method for generating an OFD layout page based on the XML template of claim 1, further comprising embedding a font, adding a specified font to the OFD file.

6. The method for generating OFD layout pages based on XML templates according to claim 1, wherein the method is further applicable to generating PDF layout pages.

7. An apparatus for generating an OFD layout page based on an XML template, comprising:

an obtaining module, configured to obtain an XML template, where the XML template includes a series of metadata;

the reading module is used for sequentially reading the metadata;

the conversion module is used for converting the metadata into an OFD file meeting the standard according to the type of the metadata;

and the output module is used for outputting the OFD file.

8. The apparatus for generating an OFD layout page based on the XML template of claim 7, further comprising a generating module, wherein the generating module is configured to obtain original data, convert the original data into metadata according to types of the original data, and sequentially combine a plurality of metadata to generate the XML template.

9. The apparatus for generating an OFD layout page based on the XML template of claim 7, wherein the conversion module comprises a text conversion module and a picture conversion module;

the character conversion module is used for typesetting the characters in the metadata, acquiring the position information of each character and outputting the position information in an OFD (office file format);

and the picture conversion module is used for outputting the pictures in the metadata in an OFD form after calculating the scaling and the rotation coefficient.

10. The apparatus for generating an OFD layout page based on the XML template of claim 7, further comprising an embedding module, wherein the embedding module is configured to add a specified font to the OFD file.

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