CN116303359A - Method for realizing multi-type document export of database structure - Google Patents
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Abstract
The invention discloses a method for realizing multi-type document export of a database structure, and relates to the technical field of database management; the method comprises the steps of providing an interface for data query through a database interfacing layer of a database, obtaining original data information of a data table, the database and an index through the interface, standardizing the original data information of different database standards through a model processing layer of the database, obtaining core data information in a unified format, carding different document structures through a document definition layer of the database, wherein the document structures comprise xml structures, compressed file formats and heterogeneous file formats, rendering the output file formats in real time through virtual data based on a template engine usemamer and a template engine library through a data rendering layer of the database, comparing the database structure version information through a structure comparison layer of the database, and realizing dynamic change perception of the database document structures, so that each document structure version of the database is enabled to be durable to output a structural document.
Description
Technical Field
The invention discloses a method, relates to the technical field of database management, and in particular relates to a method for realizing multi-type document export of a database structure.
Background
The project of the localized deployment application program often needs a database structure document in a complete version, timeliness of the document is guaranteed, the latest change record comprising the database needs to be subjected to timing operation and maintenance inspection, operation and maintenance personnel can conveniently check structure change information in time, delivery personnel can conveniently know the whole structure of the database, and business personnel can conveniently understand design requirements and templates. Therefore, the derived structural document needs to ensure that the information is relatively complete, and annotation information is derived together, so that the existing database management tools on the market are all researched and found to have the function of document derivation, including the derivation of navicat, datagrid and the like, but only the derivation of basic information can be achieved, but the document has no multiple document formats. The open source screen can ensure a plurality of document formats, but the document formats only have three types of html/word/excel and do not have a self-defining function, the document content exported by using the open source screen needs to be defined in a secondary format, and frequent copy and paste clearly increases the operation and maintenance cost and increases the time consumption of the system. The basic principle of the original export tools is to read the predefined information of each table structure in the schema table and then use a placeholder mode to replace a character string for export, however, the database structure document is far from meeting the requirements, and if the document format needs to be secondarily developed and adjusted, a great deal of manpower resource cost is definitely occupied, and the long-term operation and maintenance are not facilitated due to the fact that the delivery speed is low. On the other hand, as the digital transformation of the government field is deeper, more project program packages are deployed, and the query on the table structure of a certain database can be completed independently at this time, but if the query on a certain field is the associated field of another table, the query will be particularly troublesome, so that the export tool at the present stage does not have the capability of practical application, and the format and data cannot ensure the improvement of the efficiency.
Disclosure of Invention
Aiming at the problems that the key information database structure documents required by service project delivery are complicated and diversified in required format, the existing exporting tool is simple and has no custom function, the manual arrangement is too old, the database structure change information cannot be effectively displayed, and the management efficiency of operation and maintenance personnel is restricted, is provided with the method for realizing the exporting format custom, the exporting document diversification, the exporting content enrichment, the export object configurable sequence and the change record visualization, and the repeated workload of the on-site delivery operation and maintenance engineer is reduced, and the export is rapidly customized and exported, and is simple and convenient to use.
The specific scheme provided by the invention is as follows:
the invention provides a method for exporting multi-type documents in a database structure, which provides an interface for data query through a database interfacing layer of a database, acquires original data information of a data table, the database and an index through the interface,
the original data information of different database standards is standardized through a model processing layer of the database to obtain the core data information in a unified format,
different document structures are combed through a document definition layer of a database, the document structures comprise xml structures, compressed file formats and heterogeneous file formats,
the data rendering layer through the database renders the output file format in real time by adopting virtual data based on the template engine framemaker and the template engine variability,
and comparing the structural version information of the database through the structural comparison layer of the database, and realizing the dynamic change perception of the document structure of the database, so that each document structural version of the database is enabled to be durable to output the structural document.
Further, in the implementation method for exporting the multi-type documents with the database structure, a series of standard interfaces provided by java.sql.datasource are utilized, and according to the docking adaptation driven by the database, an interface for data query is provided through a database docking layer.
Further, in the method for implementing the export of the multi-type document with the database structure, the original data information of different database standards is standardized through a model processing layer of the database, and the method comprises the following steps: and defining a database type supported by a metadata interface of a unified standard through a model processing layer, realizing a corresponding data model according to the database type, and realizing mapping conversion from a database field to a standard field according to the data model to obtain core data information of the unified format.
Further, in the method for implementing multi-type document export in a database structure, the step of carding different document structures through a document definition layer of the database includes:
carding xml structure: presetting a head-tail structure, a table structure, a title structure and a list structure of the current file type, changing document parameters in the preset structure when performing personalized definition, setting an expected file output form target, and configuring other characters outside the preset structure in a personalized way;
carding compressed file format: aiming at the docx enhancement class file and the xlsx enhancement class file, the docx enhancement class file and the xlsx enhancement class file both comprise a group of compression packages of the xml file and the attachment type, when the file formats of the docx enhancement class file and the xlsx enhancement class file are defined, the xml file content is defined first, the xml file content is converted into an xml structure to be processed, and when the docx enhancement class file and the xlsx enhancement class file are exported, the compression packages of the preset file in the attachment type are included;
carding heterogeneous file format: and defining personalized prepositive and posthoc phones, realizing preprocessing of the prepositive data and conversion of the format of the postfile, persisting definition data of all file types in a database, and persisting the format and hierarchical relation of the attached file.
Further, in the method for implementing the export of the multi-type document with the database structure, the real-time rendering of the output file format by using the virtual data includes: writing a template grammar through a document definition layer, performing personalized setting of document contents based on the template grammar, and performing pre-rendering or post-rendering operation when outputting a file format according to the document contents.
Further, in the method for exporting the multi-type documents with the database structure, the structure version information of the database is compared by the structure comparison layer of the database, which comprises the following steps:
and the structure comparison layer uses the TimeTask timing task provided by Spring to match with the timing polling thread pool timing to sample data, and compares the version information of the database structure.
Further, the method for realizing the export of the multi-type documents with the database structure comprises the following specific processes: and sampling to obtain abstract information of the data structure version, checking whether the abstract information is consistent with stored abstract information by using md5, if so, not processing the data structure version information, if not, reading the latest data structure version from the database, comparing the difference between the latest data structure version and the sampled data structure version, generating highlight snapshot information according to the difference, and warehousing, and generating a structure change increment script statement through semantic analysis.
The invention also provides a device for realizing the export of the multi-type documents with the database structure, which comprises a docking module, a processing module, a document structure management module, a rendering module and a comparison module,
providing an interface for data query through a database interfacing layer of the database, acquiring original data information of the data table, the database and the index through the interface,
the original data information of different database standards is standardized through a model processing layer of the database to obtain the core data information in a unified format,
different document structures are combed through a document definition layer of a database, the document structures comprise xml structures, compressed file formats and heterogeneous file formats,
the data rendering layer through the database renders the output file format in real time by adopting virtual data based on the template engine framemaker and the template engine variability,
and comparing the structural version information of the database through the structural comparison layer of the database, and realizing the dynamic change perception of the document structure of the database, so that each document structural version of the database is enabled to be durable to output the structural document.
The invention has the advantages that:
the invention provides a method for realizing the export of a multi-type document with a database structure, which is not only suitable for a data delivery operation scene, but also suitable for all modes associated with the database structure, can expand and support more database types and more database document structures based on the modes, continuously develop and support various data information such as views, storage processes, function contents and the like, support more custom processes, enable file customization to be more flexible, and provide convenience for operation and maintenance staff.
Drawings
FIG. 1 is a schematic diagram of the application flow of the method of the present invention.
FIG. 2 is a schematic diagram of an implementation code interface of the method of the present invention involving a database docking layer.
FIG. 3 is a schematic diagram of an implementation code interface of the method of the present invention involving a model processing layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
The invention provides a method for exporting multi-type documents in a database structure, which provides an interface for data query through a database interfacing layer of a database, acquires original data information of a data table, the database and an index through the interface,
the original data information of different database standards is standardized through a model processing layer of the database to obtain the core data information in a unified format,
different document structures are combed through a document definition layer of a database, the document structures comprise xml structures, compressed file formats and heterogeneous file formats,
the data rendering layer through the database renders the output file format in real time by adopting virtual data based on the template engine framemaker and the template engine variability,
and comparing the structural version information of the database through the structural comparison layer of the database, and realizing the dynamic change perception of the document structure of the database, so that each document structural version of the database is enabled to be durable to output the structural document.
The method can abstract the loading layer of the database structure, realize the export of the table structure, the view structure and the index structure, and comb the realization modes of different types of documents, and realize the custom layout configuration of the document structure templates of various types by using a strategy mode. And lead delivery personnel to self-define template information according to the required document format, derive a structure file of the compliance database, accelerate the delivery speed and improve the delivery quality.
In a specific application, based on the technical solution of the invention, in some embodiments of the method according to the invention,
and providing an interface for data query through a database docking layer according to the docking adaptation driven by the database by using a series of standard interfaces provided by java. The interface may be: getDataBase/getTables/getTableColumns/getPrimaryKeys. Referring to fig. 1, the original data information of the table, the database and the index can be obtained through the group of interfaces, the type of the database to be supported can realize the development of the current interface, the obtained original data content requirements are completely consistent, and the formats can be different.
Normalizing the original data information of different database standards by a model processing layer of the database comprises the following steps: and defining a database type supported by a metadata interface of a unified standard through a model processing layer, realizing a corresponding data model according to the database type, and realizing mapping conversion from a database field to a standard field according to the data model to obtain core data information of the unified format. The method comprises the steps of analyzing actual data fields on the queried ResultSet @ MappingField annotation based on an annotation and reflection mechanism, enabling unified ConverteUtil to realize mapping conversion from database fields to standard fields, enabling newly accessed database types needing to be supported to only realize arrangement of field mapping, and obtaining core data information in a unified format through a model processing layer.
Carding different document structures through a document definition layer of a database, comprising:
carding xml structure doc/xls/html/xml/chm: presetting a head-tail structure, a table structure, a title structure and a list structure of the current file type, changing document parameters in the preset structure when performing personalized definition, setting an expected file output form target, and configuring other characters outside the preset structure in a personalized way;
carding the compressed file format docx/xlsx: aiming at the docx enhancement class file and the xlsx enhancement class file, the docx enhancement class file and the xlsx enhancement class file both comprise a group of compression packages of the xml file and the attachment type, when the file formats of the docx enhancement class file and the xlsx enhancement class file are defined, the xml file content is defined first, the xml file content is converted into an xml structure to be processed, and when the docx enhancement class file and the xlsx enhancement class file are exported, the compression packages of the preset file in the attachment type are included;
carding heterogeneous file format markdown/json/pdf: and defining personalized prepositive and posthoc phones, realizing preprocessing of the prepositive data and conversion of the format of the postfile, persisting definition data of all file types in a database, and persisting the format and hierarchical relation of the attached file.
The data rendering layer through the database adopts virtual data to render an output file format in real time based on a template engine framemaker and a template engine variability, and comprises the following steps: writing a template grammar through a document definition layer, performing personalized setting of document contents based on the template grammar, and performing pre-rendering or post-rendering operation when outputting a file format according to the document contents. The file definition layer uses for/if sentences to write template grammar, the model processing layer provides standard data formats, freemarker and speed are used as template engines, the performance is high, the database management ftl and vm template file number are convenient to maintain, the operation and version iteration is rapid, various types of databases can be dynamically adapted, the expandability is enhanced, file formatting abstract definition is exported, the presentation mode of partial components is standardized, and the fact that various document contents have the same presentation effect and presentation capability is achieved.
The structure comparison layer comparison of the database is used for comparing the structure version information of the database, and the method comprises the following steps:
and the structure comparison layer uses the TimeTask timing task provided by Spring to match with the timing polling thread pool timing to sample data, and compares the version information of the database structure.
Further, the specific process is as follows: and sampling to obtain abstract information of the data structure version, checking whether the abstract information is consistent with stored abstract information by using md5, if so, not processing the data structure version information, if not, reading the latest data structure version from the database, comparing the difference between the latest data structure version and the sampled data structure version, generating highlight snapshot information according to the difference, and warehousing, and generating a structure change increment script statement through semantic analysis. The sampling comparison can realize the problem of database structure dynamic change perception, so that the knowledge of on-site delivery personnel on database structure change after project program update is ensured, and in addition, the sampling comparison mode can ensure that each database structure version can output a structure document in a lasting way, and the sustainable record export capability of the structure document is ensured.
The invention also provides a device for realizing the export of the multi-type documents with the database structure, which comprises a docking module, a processing module, a document structure management module, a rendering module and a comparison module,
providing an interface for data query through a database interfacing layer of the database, acquiring original data information of the data table, the database and the index through the interface,
the original data information of different database standards is standardized through a model processing layer of the database to obtain the core data information in a unified format,
different document structures are combed through a document definition layer of a database, the document structures comprise xml structures, compressed file formats and heterogeneous file formats,
the data rendering layer through the database renders the output file format in real time by adopting virtual data based on the template engine framemaker and the template engine variability,
and comparing the structural version information of the database through the structural comparison layer of the database, and realizing the dynamic change perception of the document structure of the database, so that each document structural version of the database is enabled to be durable to output the structural document.
The content of information interaction and execution process between the modules in the device is based on the same conception as the embodiment of the method of the present invention, and specific content can be referred to the description in the embodiment of the method of the present invention, which is not repeated here.
Similarly, the implementation mode of the multi-type document export of the database structure provided by the device is not only suitable for a data delivery operation and maintenance scene, but also suitable for all modes associated with the database structure, more database types and more database document structures can be expanded and supported based on the modes, various data information such as supporting views, storage processes, function contents and the like can be continuously developed, more self-defining processes can be supported, the self-defining of the file can be enabled to be more flexible, and convenience is provided for operation and maintenance staff.
It should be noted that not all the steps and modules in the above processes and the structure diagrams of the devices are necessary, and some steps or modules may be omitted according to actual needs. The execution sequence of the steps is not fixed and can be adjusted as required. The system structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or may be implemented jointly by some components in multiple independent devices.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (8)
1. A method for exporting multi-type documents in database structure features that a database interface layer of database is used to provide data inquiry interface, the data table, database and index information are acquired by said interface,
the original data information of different database standards is standardized through a model processing layer of the database to obtain the core data information in a unified format,
different document structures are combed through a document definition layer of a database, the document structures comprise xml structures, compressed file formats and heterogeneous file formats,
the data rendering layer through the database renders the output file format in real time by adopting virtual data based on the template engine framemaker and the template engine variability,
and comparing the structural version information of the database through the structural comparison layer of the database, and realizing the dynamic change perception of the document structure of the database, so that each document structural version of the database is enabled to be durable to output the structural document.
2. The method for exporting multi-type documents in a database structure according to claim 1, wherein the interface for data query is provided through a database docking layer according to a database driven docking adaptation by using a series of standard interfaces provided by java.
3. The method for exporting multi-type documents in a database structure according to claim 1, wherein the normalizing of the original data information of different database standards by the model processing layer of the database comprises: and defining a database type supported by a metadata interface of a unified standard through a model processing layer, realizing a corresponding data model according to the database type, and realizing mapping conversion from a database field to a standard field according to the data model to obtain core data information of the unified format.
4. The method for exporting multi-type documents in a database structure according to claim 1, wherein said sorting different document structures through a document definition layer of the database comprises:
carding xml structure: presetting a head-tail structure, a table structure, a title structure and a list structure of the current file type, changing document parameters in the preset structure when performing personalized definition, setting an expected file output form target, and configuring other characters outside the preset structure in a personalized way;
carding compressed file format: aiming at the docx enhancement class file and the xlsx enhancement class file, the docx enhancement class file and the xlsx enhancement class file both comprise a group of compression packages of the xml file and the attachment type, when the file formats of the docx enhancement class file and the xlsx enhancement class file are defined, the xml file content is defined first, the xml file content is converted into an xml structure to be processed, and when the docx enhancement class file and the xlsx enhancement class file are exported, the compression packages of the preset file in the attachment type are included;
carding heterogeneous file format: and defining personalized prepositive and posthoc phones, realizing preprocessing of the prepositive data and conversion of the format of the postfile, persisting definition data of all file types in a database, and persisting the format and hierarchical relation of the attached file.
5. The method for exporting multi-type documents in a database structure according to claim 1, wherein said rendering the output file format in real time using virtual data comprises: writing a template grammar through a document definition layer, performing personalized setting of document contents based on the template grammar, and performing pre-rendering or post-rendering operation when outputting a file format according to the document contents.
6. The method for exporting multi-type documents in a database structure according to claim 1, wherein the comparing the version information of the database structure by the structural comparison layer of the database comprises:
and the structure comparison layer uses the TimeTask timing task provided by Spring to match with the timing polling thread pool timing to sample data, and compares the version information of the database structure.
7. The method for exporting the multi-type documents with the database structure according to claim 6, wherein the method comprises the following specific steps: and sampling to obtain abstract information of the data structure version, checking whether the abstract information is consistent with stored abstract information by using md5, if so, not processing the data structure version information, if not, reading the latest data structure version from the database, comparing the difference between the latest data structure version and the sampled data structure version, generating highlight snapshot information according to the difference, and warehousing, and generating a structure change increment script statement through semantic analysis.
8. The device for realizing the export of the multi-type documents with the database structure is characterized by comprising a docking module, a processing module, a document structure management module, a rendering module and a comparison module,
providing an interface for data query through a database interfacing layer of the database, acquiring original data information of the data table, the database and the index through the interface,
the original data information of different database standards is standardized through a model processing layer of the database to obtain the core data information in a unified format,
different document structures are combed through a document definition layer of a database, the document structures comprise xml structures, compressed file formats and heterogeneous file formats,
the data rendering layer through the database renders the output file format in real time by adopting virtual data based on the template engine framemaker and the template engine variability,
and comparing the structural version information of the database through the structural comparison layer of the database, and realizing the dynamic change perception of the document structure of the database, so that each document structural version of the database is enabled to be durable to output the structural document.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116737698A (en) * | 2023-08-14 | 2023-09-12 | 金篆信科有限责任公司 | Distributed database configuration comparison method, device, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116737698A (en) * | 2023-08-14 | 2023-09-12 | 金篆信科有限责任公司 | Distributed database configuration comparison method, device, equipment and storage medium |
| CN116737698B (en) * | 2023-08-14 | 2023-11-28 | 金篆信科有限责任公司 | Distributed database configuration comparison method, device, equipment and storage medium |
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