CN110083650A - A kind of data-query interfaces automatic generation method and system based on metadata self-discovery - Google Patents
A kind of data-query interfaces automatic generation method and system based on metadata self-discovery Download PDFInfo
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/242—Query formulation
- G06F16/2433—Query languages
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- G06F16/245—Query processing
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- G06F16/24553—Query execution of query operations
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- G06F16/245—Query processing
- G06F16/2455—Query execution
- G06F16/24568—Data stream processing; Continuous queries
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Abstract
Data-query interfaces automatic generation method based on metadata self-discovery, comprising: metadata management system finds table and table structure in database automatically, and is saved in service database；User selects tables of data, configuration querying field and parameter, saves relevant parameter in data query system；System generates a SQL statement template according to the data query parameter list that user selects, which can receive the parameter that user specifies and operator as parameter；System generates a corresponding address URL and increases a routing forwarding rule and API mapping；When using interface polls data, API is called using by specified URL；Parameter legitimacy is inputted according to the corresponding parameter list inspection of URL；If parameter is legal, SQL statement is generated using parameter to the SQL statement template of preservation；Call data base querying data, by result data according to JSON layout sequence, the returned data by way of data flow.
Description
Technical field
The invention belongs to database technical field, in particular to a kind of data-query interfaces based on metadata self-discovery are certainly
Dynamic generation method and system.
Background technique
With the continuous development of informatization, data are increasing, and the demand of data query is more and more.The prior art
Query interface can be generated by writing sql sentence according to fixed data structure.But when data structure changes, when need
Otherwise same query argument, can only all rewrite sql and regenerate interface, bring great overlapping development workload.
Summary of the invention
The present invention provides a kind of data-query interfaces automatic generation methods and system based on metadata self-discovery, are used for
Solve the problems, such as that available data query interface needs overlapping development.
One of embodiment of the present invention, a kind of data-query interfaces automatic generation method based on metadata self-discovery, including
Following steps:
Step 1, metadata management system finds table and table structure in database automatically, and is saved in service database；
Step 2, user selects tables of data, configuration querying field and parameter, saves relevant parameter in data query system；
Step 3, system generates a SQL statement template, the template according to the data query parameter list that user selects
It can receive parameter that user specifies and operator as parameter；
Step 4, system generates a corresponding address URL and increases a routing forwarding rule and API mapping；
Step 5, step 2 is repeated to step 4, is repeatedly different tables, different query arguments create multiple API；
When step 6, using interface polls data, API is called using by specified URL；Step 7, according to URL pairs
The parameter list inspection input parameter legitimacy answered；
Step 8, if parameter is legal, SQL statement is generated using parameter to the SQL statement template of preservation；
Step 9, data base querying data are called to pass through the side of data flow by result data according to JSON layout sequence
Formula returned data.
The beneficial effect comprise that
1, reduce the artificial workload for repeating to write SQL statement；
2, the scene of data structure variation is adapted to, dynamic is supported to generate query interface；
3, the scene of query argument variation is adapted to, supports changeable assembling sql sentence.
Detailed description of the invention
The following detailed description is read with reference to the accompanying drawings, above-mentioned and other mesh of exemplary embodiment of the invention
, feature and advantage will become prone to understand.In the accompanying drawings, if showing by way of example rather than limitation of the invention
Dry embodiment, in which:
Fig. 1 according to embodiments of the present invention one of the data-query interfaces automatic creation system based on metadata self-discovery show
It is intended to.
Specific embodiment
According to one or more embodiment, as shown in Figure 1, a kind of data-query interfaces based on metadata self-discovery are certainly
Dynamic generation method, comprising the following steps:
Step 1. metadata management system finds table and table structure in database automatically, and is saved in service database,
Step 1.1 registers the data source link information for needing to inquire data in metadata management system；
Step 1.2 metadata management system passes through configuring timing tasks, timing automatically scanning database；
The table and table structure of the automatic discovery data source of step 1.3, including table name, field name, field type, field are standby
Note；
The data that step 1.4 finds step 1.3 are saved in service database,
Step 2. user selects tables of data, configuration querying field and parameter, saves relevant parameter in data query system,
Step 2.1 obtains the data table information that metadata management system saves, and the table and table structure that system will be present are to arrange
The form of table is presented to data consumer；
Step 2.2 user selection needs the table of automatically generated data inquiry API, and selects to operate in API to be looked into
Ask the field and parameter rule of parameter transmitting；
Relevant parameter is saved in database by step 2.3 system,
Step 3 system generates a SQL statement template according to the data query parameter list that user selects, which can
To receive parameter that user specifies and operator as parameter；
Step 4 system generates a corresponding address URL and increases a routing forwarding rule and API mapping；
Step 5 repeats step 2 to step 4, can repeatedly be different tables, the multiple API of different query argument creations；
When step 6 is using interface polls data, API is called using by specified URL；
Step 7 system inputs parameter legitimacy according to the corresponding parameter list inspection of URL；
If step 8 parameter is legal, SQL statement is generated using parameter to the SQL statement template of preservation；
Step 9 calls data base querying data, by result data according to JSON layout sequence, by way of data flow
Returned data.
The present embodiment provides it is a kind of when data structure changes, when needing different query arguments, without compiling again
SQL is write, the method for automatically generating query interface.
According to one or more embodiment, as shown in Figure 1, a kind of data-query interfaces based on metadata self-discovery are certainly
Dynamic generation system, the system include: metadata management system, data interface, data query system,
The function of metadata management system includes:
Log-on data source, timing scan data source obtain all tables and obtain the field of table, generate data source information, table
And table structure；
The function of data interface includes:
All tables are obtained according to data source information, table and table structure, table structure is obtained by selection table, configuration data is looked into
SOL template is generated after inquiry parameter, is generated URL, is established URL-API mapping by routing forwarding；
Data query system function includes:
After checking URL legitimacy, generating SQL statement according to parameter if parameter is legal, call data base querying data
Pass through data flow returned data.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or beg for
Opinion mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit
Or communication connection, it is also possible to electricity, mechanical or other form connections.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection scope subject to.
Claims (4)
1. a kind of data-query interfaces automatic generation method based on metadata self-discovery, which comprises the following steps:
Step 1, metadata management system finds table and table structure in database automatically, and is saved in service database；
Step 2, user selects tables of data, configuration querying field and parameter, saves relevant parameter in data query system；
Step 3, the data query parameter list that system is selected according to user generates a SQL statement template, which can be with
Receive parameter that user specifies and operator as parameter；
Step 4, system generates a corresponding address URL and increases a routing forwarding rule and API mapping；
Step 5, step 2 is repeated to step 4, is repeatedly different tables, different query arguments create multiple API；
When step 6, using interface polls data, API is called using by specified URL；
Step 7, parameter legitimacy is inputted according to the corresponding parameter list inspection of URL；
Step 8, if parameter is legal, SQL statement is generated using parameter to the SQL statement template of preservation；
Step 9, data base querying data are called to return by way of data flow by result data according to JSON layout sequence
Return data.
2. the data-query interfaces automatic generation method according to claim 1 based on metadata self-discovery, feature exist
In further, step 1 includes:
Step 1.1, the data source link information for needing to inquire data is registered in metadata management system；
Step 1.2, metadata management system passes through configuring timing tasks, timing automatically scanning database；
Step 1.3, the table and table structure of discovery data source, including table name, field name, field type, field remarks automatically；
Step 1.4, data step 1.3 found are saved in service database.
3. the data-query interfaces automatic generation method according to claim 2 based on metadata self-discovery, feature exist
In step 2 includes:
Step 2.1, the data table information that metadata management system saves is obtained, the table and table structure that system will be present are with list
Form is presented to data consumer；
Step 2.2, user's selection needs the table of automatically generated data inquiry API, and selects to operate in carry out inquiry ginseng in API
The field and parameter rule of number transmitting；
Step 2.3, relevant parameter is saved in database.
4. a kind of data-query interfaces automatic creation system based on metadata self-discovery, which is characterized in that the system includes: member
Data management system, data interface, data query system,
The function of metadata management system includes:
Log-on data source, timing scan data source obtain all tables and obtain the field of table, generate data source information, table and
Table structure；
The function of data interface includes:
All tables are obtained according to data source information, table and table structure, table structure are obtained by selection table, configuration data inquiry ginseng
SOL template is generated after number, is generated URL, is established URL-API mapping by routing forwarding；
Data query system function includes:
It checks URL legitimacy, pass through if parameter is legal according to parameter generation SQL statement, after calling data base querying data
Data flow returned data.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111198772A (en) * | 2019-12-23 | 2020-05-26 | 中思博安科技（北京）有限公司 | Method and system for generating application program interface API |
| CN111291074A (en) * | 2020-02-27 | 2020-06-16 | 北京思特奇信息技术股份有限公司 | Database query method, system, medium and device |
| CN112131294A (en) * | 2020-09-22 | 2020-12-25 | 城云科技（中国）有限公司 | Method, system and device for quickly generating interface |
| CN112131846A (en) * | 2020-09-07 | 2020-12-25 | 北京思特奇信息技术股份有限公司 | Method and system for parameter transmission based on mapping relation, electronic device and storage medium |
| CN112558950A (en) * | 2020-12-21 | 2021-03-26 | 北京搜房科技发展有限公司 | System interface generation method and device |
| CN112667663A (en) * | 2020-12-28 | 2021-04-16 | 北京明略软件***有限公司 | Data query method and system |
| CN112734349A (en) * | 2019-10-14 | 2021-04-30 | 珠海格力电器股份有限公司 | Interface generation method, data calling method, device and electronic equipment |
| CN112764744A (en) * | 2021-01-25 | 2021-05-07 | 芝麻云信（武汉）科技有限公司 | Interface service design method for ERP system |
| CN112799659A (en) * | 2021-01-12 | 2021-05-14 | 杨飞 | Method, device and terminal for automatically generating data interface without programming |
| CN113419719A (en) * | 2021-06-29 | 2021-09-21 | 北京仁科互动网络技术有限公司 | Interface case generation method and system based on business scene |
| CN114004211A (en) * | 2021-12-30 | 2022-02-01 | 太平金融科技服务(上海)有限公司深圳分公司 | Document template generation method, processing method, device, computer equipment and medium |
| CN114981775A (en) * | 2019-12-16 | 2022-08-30 | 柠檬医疗保健有限公司 | Cloud-based API metadata management method and system for API integrated management |
| CN112131846B (en) * | 2020-09-07 | 2024-06-04 | 北京思特奇信息技术股份有限公司 | Method and system for transmitting parameters based on mapping relation, electronic device and storage medium |
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| CN112734349A (en) * | 2019-10-14 | 2021-04-30 | 珠海格力电器股份有限公司 | Interface generation method, data calling method, device and electronic equipment |
| CN114981775A (en) * | 2019-12-16 | 2022-08-30 | 柠檬医疗保健有限公司 | Cloud-based API metadata management method and system for API integrated management |
| CN114981775B (en) * | 2019-12-16 | 2024-05-03 | 柠檬医疗保健有限公司 | Cloud-based API metadata management method and system for integrated API management |
| CN111198772A (en) * | 2019-12-23 | 2020-05-26 | 中思博安科技（北京）有限公司 | Method and system for generating application program interface API |
| CN111291074A (en) * | 2020-02-27 | 2020-06-16 | 北京思特奇信息技术股份有限公司 | Database query method, system, medium and device |
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| CN112131846A (en) * | 2020-09-07 | 2020-12-25 | 北京思特奇信息技术股份有限公司 | Method and system for parameter transmission based on mapping relation, electronic device and storage medium |
| CN112131846B (en) * | 2020-09-07 | 2024-06-04 | 北京思特奇信息技术股份有限公司 | Method and system for transmitting parameters based on mapping relation, electronic device and storage medium |
| CN112131294A (en) * | 2020-09-22 | 2020-12-25 | 城云科技（中国）有限公司 | Method, system and device for quickly generating interface |
| CN112558950A (en) * | 2020-12-21 | 2021-03-26 | 北京搜房科技发展有限公司 | System interface generation method and device |
| CN112667663A (en) * | 2020-12-28 | 2021-04-16 | 北京明略软件***有限公司 | Data query method and system |
| CN112799659A (en) * | 2021-01-12 | 2021-05-14 | 杨飞 | Method, device and terminal for automatically generating data interface without programming |
| CN112764744A (en) * | 2021-01-25 | 2021-05-07 | 芝麻云信（武汉）科技有限公司 | Interface service design method for ERP system |
| CN113419719A (en) * | 2021-06-29 | 2021-09-21 | 北京仁科互动网络技术有限公司 | Interface case generation method and system based on business scene |
| CN113419719B (en) * | 2021-06-29 | 2023-10-13 | 北京仁科互动网络技术有限公司 | Interface use case generation method and system based on business scene |
| CN114004211A (en) * | 2021-12-30 | 2022-02-01 | 太平金融科技服务(上海)有限公司深圳分公司 | Document template generation method, processing method, device, computer equipment and medium |
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