CN102426612A - Condition object query method and system - Google Patents
Condition object query method and system Download PDFInfo
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- CN102426612A CN102426612A CN2012100114342A CN201210011434A CN102426612A CN 102426612 A CN102426612 A CN 102426612A CN 2012100114342 A CN2012100114342 A CN 2012100114342A CN 201210011434 A CN201210011434 A CN 201210011434A CN 102426612 A CN102426612 A CN 102426612A
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Abstract
The invention relates to the technical field of data query, and discloses a condition object query method and system. The method comprises the following steps of: acquiring a query condition input by a user; mapping the query condition to a universal query object; calling a universal query model corresponding to the universal query condition to finish a query process so as to obtain a query result; and displaying the query result. By using the method and the system, the application development efficiency can be increased, and the error probability in the application development process can be reduced.
Description
Technical field
The present invention relates to the data query technique field, be specifically related to a kind of conditional object querying method and system.
Background technology
In exploitation JavaEE application system, general flow process is the querying condition of user's typing character type, like date, title etc.; System needs earlier the querying condition of character type to be converted into the query argument of data type; Give a query object with its assignment again, give DAO (Data Access Obiect, DAO) layer with query object then; Be assemblied into actual query statement, carry out the Query Result that this query statement obtains user expectation.
In actual performance history, above-mentioned conversion and assembly unit process all very easily go wrong, and unfamiliar programmer is easy to stay leak, cause user with harmful intent to destroy system through the means that SQL injects.In addition, if in an application, relate to a plurality of query scripts, then for each inquiry; All need repeat above-mentioned performance history; The programmer uses through regular meeting and duplicates the mode development sequence of stickup, and so not only efficient is low, and tends in program, produce wrong code.
Summary of the invention
The present invention provides a kind of conditional object querying method and system, to improve application and development efficient, reduces the probability of makeing mistakes in the application development process.
For this reason, the embodiment of the invention provides following technical scheme:
A kind of conditional object querying method comprises:
Obtain the querying condition of user's input;
Said querying condition is mapped to the general polling object;
Call with said general polling object corresponding general interrogation model and accomplish query script, obtain Query Result;
Represent said Query Result.
Alternatively, the corresponding one or more querying conditions of said general polling object.
Preferably, said method also comprises:
Before said querying condition is mapped to the general polling object, said querying condition is carried out verification;
If check results is that said querying condition is correct, then carry out the said step that said querying condition is mapped to the general polling object.
Preferably, said calling with said general polling object corresponding general interrogation model accomplished query script, obtains Query Result and comprises:
Search and said general polling object corresponding general interrogation model;
If find, then said general polling object is exported to said general polling model, so that said general polling model is accomplished query script according to said general polling object;
Obtain the Query Result that said general polling model returns.
Preferably, said method also comprises: said general polling model is accomplished query script through following steps:
Said general polling model is resolved said general polling object, obtains the querying condition that comprises in the said general polling object;
Said general polling model generates the WHERE fragment with said querying condition;
The content that said general polling model will be inquired about generates the SELECT fragment;
Said general polling model is dressed up complete SQL statement with the WHERE fragment and the SELECT slice groups that generate;
Said general polling model is to the branch page fragment of said SQL statement generated query;
The SQL statement of said general polling model after according to paging inquired about, and returns Query Result.
A kind of conditional object inquiry system comprises:
The querying condition acquiring unit is used to obtain the querying condition of user's input;
Map unit is used for said querying condition is mapped to the general polling object;
Call unit is used to call with said general polling object corresponding general interrogation model and accomplishes query script, obtains Query Result;
Represent the unit, be used to represent said Query Result.
Alternatively, the corresponding one or more querying conditions of said general polling object.
Preferably, said system also comprises:
Verification unit; Be used for before said map unit is mapped to the general polling object with said querying condition; Said querying condition is carried out verification; If check results is that said querying condition is correct, then notify said map unit to carry out the said operation that said querying condition is mapped to the general polling object.
Preferably, said call unit comprises:
Search subelement, be used to search and said general polling object corresponding general interrogation model;
The output subelement; Be used for said search subelement find with said general polling object corresponding general interrogation model after; Said general polling object is exported to said general polling model, so that said general polling model is accomplished query script according to said general polling object;
The input subelement is used to obtain the Query Result that said general polling model returns.
Preferably, said general polling model comprises:
Resolve subelement, be used for said general polling object is resolved, obtain the querying condition that comprises in the said general polling object;
First generates subelement, is used for said querying condition is generated the WHERE fragment;
Second generates subelement, and the content that is used for inquiring about generates the SELECT fragment;
The assembling subelement is used for the WHERE fragment and the SELECT slice groups that generate are dressed up complete SQL statement;
The 3rd generates subelement, is used for the branch page fragment to the SQL statement generated query of said assembling subelement generation;
The inquiry subelement is used for inquiring about according to the SQL statement after said the 3rd generation subelement paging, and returns Query Result.
Embodiment of the invention conditional object querying method; Utilize the general polling model of setting up in advance; When needs carry out data query; The querying condition of user's input is mapped to the general polling object, calls then with said general polling object corresponding general interrogation model and accomplish query script, obtain Query Result.Like this, to the exploitation of different application, or application in repeatedly inquiry, only need a developer that querying condition is mapped to the general polling object, and call corresponding general polling model and can accomplish query script.Not only can improve application and development efficient, and reduce the probability of makeing mistakes in the application development process.
Description of drawings
In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously; The accompanying drawing that describes below only is some embodiment that put down in writing among the present invention, for those of ordinary skills, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of embodiment of the invention conditional object querying method;
Fig. 2 is the process flow diagram that the general polling model carries out data query in the embodiment of the invention;
Fig. 3 is a kind of structural representation of embodiment of the invention conditional object inquiry system;
Fig. 4 is a kind of structural representation of general polling model in the embodiment of the invention.
Embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is done further to specify below in conjunction with accompanying drawing and embodiment.
Embodiment of the invention conditional object querying method and system; Utilize the general polling model of setting up in advance; When needs carry out data query; The querying condition of user's input is mapped to the general polling object, calls then with said general polling object corresponding general interrogation model and accomplish query script, obtain Query Result.Like this, to the exploitation of different application, or application in repeatedly inquiry, only need a developer that querying condition is mapped to the general polling object, and call corresponding general polling model and can accomplish query script.Not only can improve application and development efficient, and reduce the probability of makeing mistakes in the application development process.
As shown in Figure 1, be the process flow diagram of embodiment of the invention conditional object querying method, may further comprise the steps:
Step 101 is obtained the querying condition of user's input.
The querying condition of user's input is the form of character string, can have one or more.Said querying condition can be the date, like character strings such as 2011-11-16, sexes.
Step 102 is mapped to the general polling object with said querying condition.
In practical application, can pass through standard general polling definition of object, set up and each general polling object corresponding general interrogation model, to satisfy the different application demands of developing.
Need to prove that in embodiments of the present invention, the corresponding one or more querying conditions of general polling object that is to say, and are a plurality of if the querying condition of user's input has, and then these querying conditions are mapped in the query object.
In addition, in order further to guarantee the correctness and the integrality of the querying condition that the user imports, can also, said querying condition carry out verification before being mapped to the general polling object to said querying condition.If check results is that said querying condition is correct, carry out the said step that said querying condition is mapped to the general polling object again.
Step 103 is called with said general polling object corresponding general interrogation model and is accomplished query script, obtains Query Result.
In this step; At first search and said general polling object corresponding general interrogation model; If find; Then said general polling object is exported to said general polling model,, obtain the Query Result that said general polling model returns then so that said general polling model is accomplished query script according to said general polling object.
The process that said general polling model carries out data query will specify in the back.
Step 104 represents said Query Result.
It is thus clear that; Embodiment of the invention conditional object querying method; Utilize the general polling model of setting up in advance, when needs carried out data query, the querying condition that the user is imported was mapped to the general polling object; Call then with said general polling object corresponding general interrogation model and accomplish query script, obtain Query Result.Like this, to the exploitation of different application, or application in repeatedly inquiry, only need a developer that querying condition is mapped to the general polling object, and call corresponding general polling model and can accomplish query script.Not only can improve application and development efficient, and reduce the probability of makeing mistakes in the application development process.
As shown in Figure 2, be the process flow diagram that the general polling model carries out data query in the embodiment of the invention, may further comprise the steps:
Step 201 is resolved the general polling object of input, obtains the querying condition that comprises in the said general polling object;
Step 202 generates the WHERE fragment with said querying condition;
Step 204 is dressed up complete SQL statement with the WHERE fragment and the SELECT slice groups that generate;
Step 205 is to the branch page fragment of said SQL statement generated query;
That is to say, on the SQL statement basis that generates, increase rowid＜=" every page data amount " in the WHERE fragment therein,, avoid one query to go out excessive data volume and cause server memory to be overflowed to limit the quantity of each inquiry.
Step 206 is inquired about according to the SQL statement after the paging, and returns Query Result.
Illustrate below and utilize the application of embodiment of the invention conditional object querying method in page development,
Main process is following:
1. the user submits in page input inquiry condition.
2. the page logic layer is mapped to the general polling object automatically with querying condition, and the mode of realization is to carry out related through the title of page text control with the Property Name of general polling object.Particularly, utilize the RTTI technology of java to find the instance param of general polling object earlier, then with the Property Name of the name lookup instance of page parameter control, the attribute that page parameter control and general polling object properties are of the same name is assignment one by one.
3. the page logic layer passes to Business Logic with the general polling object of receiving.
4. Business Logic uses the general polling object to call data Layer DAO as query argument.
5. data Layer DAO resolves general polling object DBQueryParm, and the generated query language specifically may further comprise the steps:
(1) generates table counting inquiry statement, be used for the size of data and generation total page number of statistical form;
(2) analyze page attribute, generate paging query statement fragment;
(3) analyze part field in the question blank whether, the SELECT fragment of generated query;
(4) use the attribute of general polling object to begin formation condition query statement fragment;
(5) the query type definition character string of analytic attribute title is handled the condition of generated query respectively by numeral, date, character string;
(6), generate the fuzzy query statement of character string to the special inquiry Like of character string;
(7) continue to analyze whole query object attributes, generate complete query statement.
6. carry out said query statement, Query Result is put into the data query encapsulated object return to Business Logic.
7. Business Logic carries out business processing, sends Query Result to page layer then and carries out webpage representation.
Correspondingly, the embodiment of the invention also provides a kind of conditional object inquiry system, and is as shown in Figure 3, is a kind of structural representation of this system.
In this embodiment, said system comprises:
Querying condition acquiring unit 301 is used to obtain the querying condition of user's input;
Map unit 302 is used for said querying condition is mapped to the general polling object;
Call unit 303 is used to call with said general polling object corresponding general interrogation model and accomplishes query script, obtains Query Result;
Represent unit 304, be used to represent said Query Result.
Need to prove; In embodiments of the present invention, said general polling object can corresponding one or more querying conditions, that is to say; If it is a plurality of that the querying condition of user's input has, then map unit 302 need be mapped to these querying conditions in the query object.
In addition; In order further to guarantee the correctness and the integrality of the querying condition that the user imports; Said system also can further comprise: verification unit 305 is used for before said map unit 302 is mapped to the general polling object with said querying condition, said querying condition being carried out verification; If check results is that said querying condition is correct, then notify said map unit 302 to carry out the said operation that said querying condition is mapped to the general polling object.
In embodiments of the present invention, a kind of concrete implementation of above-mentioned call unit 303 comprises following subelement:
Search subelement, be used to search and said general polling object corresponding general interrogation model;
The output subelement; Be used for said search subelement find with said general polling object corresponding general interrogation model after; Said general polling object is exported to said general polling model, so that said general polling model is accomplished query script according to said general polling object;
The input subelement is used to obtain the Query Result that said general polling model returns.
It is thus clear that; Embodiment of the invention conditional object inquiry system; Utilize the general polling model of setting up in advance, when needs carried out data query, the querying condition that the user is imported was mapped to the general polling object; Call then with said general polling object corresponding general interrogation model and accomplish query script, obtain Query Result.Like this, to the exploitation of different application, or application in repeatedly inquiry, only need a developer that querying condition is mapped to the general polling object, and call corresponding general polling model and can accomplish query script.Not only can improve application and development efficient, and reduce the probability of makeing mistakes in the application development process.
As shown in Figure 4, be a kind of structural representation of general polling model in the embodiment of the invention.
In this embodiment, said general polling model comprises:
First generates subelement 402, is used for said querying condition is generated the WHERE fragment;
Second generates subelement 403, and the content that is used for inquiring about generates the SELECT fragment;
Assembling subelement 404 is used for the WHERE fragment and the SELECT slice groups that generate are dressed up complete SQL statement;
The 3rd generates subelement 405, is used for the branch page fragment to the SQL statement generated query of said assembling subelement 404 generations.
Need to prove that embodiment of the invention conditional object querying method and system can provide multiple inquiry mode, the for example fuzzy query of the inquiry of common type, character string through the attribute definition of query object; Query portion data or full dose inquiry; Perhaps directly embed self-defining SQL etc., adapt to the different service occasion, querying condition is mapped to the general polling object; And call corresponding general polling model; Automatically accomplish query script, not only reduced the probability that application program is made mistakes, and can improve development efficiency greatly.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses all is the difference with other embodiment.Especially, for system embodiment, because it is basically similar in appearance to method embodiment, so describe fairly simplely, relevant part gets final product referring to the part explanation of method embodiment.System embodiment described above only is schematic; Wherein said unit as the separating component explanation can or can not be physically to separate also; The parts that show as the unit can be or can not be physical locations also; Promptly can be positioned at a place, perhaps also can be distributed on a plurality of NEs.Can realize the purpose of present embodiment scheme according to the needs selection some or all of module wherein of reality.Those of ordinary skills promptly can understand and implement under the situation of not paying creative work.
More than the embodiment of the invention has been carried out detailed introduction, used embodiment among this paper the present invention set forth, the explanation of above embodiment just is used for help understanding method and apparatus of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a conditional object querying method is characterized in that, comprising:
Obtain the querying condition of user's input;
Said querying condition is mapped to the general polling object;
Call with said general polling object corresponding general interrogation model and accomplish query script, obtain Query Result;
Represent said Query Result.
2. method according to claim 1 is characterized in that, the corresponding one or more querying conditions of said general polling object.
3. method according to claim 1 is characterized in that, said method also comprises:
Before said querying condition is mapped to the general polling object, said querying condition is carried out verification;
If check results is that said querying condition is correct, then carry out the said step that said querying condition is mapped to the general polling object.
4. according to each described method of claim 1 to 3, it is characterized in that said calling with said general polling object corresponding general interrogation model accomplished query script, obtains Query Result and comprises:
Search and said general polling object corresponding general interrogation model;
If find, then said general polling object is exported to said general polling model, so that said general polling model is accomplished query script according to said general polling object;
Obtain the Query Result that said general polling model returns.
5. method according to claim 4 is characterized in that, said method also comprises:
Said general polling model is accomplished query script through following steps:
Said general polling model is resolved said general polling object, obtains the querying condition that comprises in the said general polling object;
Said general polling model generates the WHERE fragment with said querying condition;
The content that said general polling model will be inquired about generates the SELECT fragment;
Said general polling model is dressed up complete SQL statement with the WHERE fragment and the SELECT slice groups that generate;
Said general polling model is to the branch page fragment of said SQL statement generated query;
Said general polling model is according to inquiring about according to the SQL statement after the paging, and returns Query Result.
6. a conditional object inquiry system is characterized in that, comprising:
The querying condition acquiring unit is used to obtain the querying condition of user's input;
Map unit is used for said querying condition is mapped to the general polling object;
Call unit is used to call with said general polling object corresponding general interrogation model and accomplishes query script, obtains Query Result;
Represent the unit, be used to represent said Query Result.
7. system according to claim 6 is characterized in that, the corresponding one or more querying conditions of said general polling object.
8. system according to claim 6 is characterized in that, said system also comprises:
Verification unit; Be used for before said map unit is mapped to the general polling object with said querying condition; Said querying condition is carried out verification; If check results is that said querying condition is correct, then notify said map unit to carry out the said operation that said querying condition is mapped to the general polling object.
9. according to each described system of claim 6 to 8, it is characterized in that said call unit comprises:
Search subelement, be used to search and said general polling object corresponding general interrogation model;
The output subelement; Be used for said search subelement find with said general polling object corresponding general interrogation model after; Said general polling object is exported to said general polling model, so that said general polling model is accomplished query script according to said general polling object;
The input subelement is used to obtain the Query Result that said general polling model returns.
10. system according to claim 9 is characterized in that, said general polling model comprises:
Resolve subelement, be used for said general polling object is resolved, obtain the querying condition that comprises in the said general polling object;
First generates subelement, is used for said querying condition is generated the WHERE fragment;
Second generates subelement, and the content that is used for inquiring about generates the SELECT fragment;
The assembling subelement is used for the WHERE fragment and the SELECT slice groups that generate are dressed up complete SQL statement;
The 3rd generates subelement, is used for the branch page fragment to the SQL statement generated query of said assembling subelement generation;
The inquiry subelement is used for inquiring about according to the SQL statement after said the 3rd generation subelement paging, and returns Query Result.
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| CN102682118A (en) * | 2012-05-15 | 2012-09-19 | 北京久其软件股份有限公司 | Multidimensional data model access method and device |
| CN102750382A (en) * | 2012-06-28 | 2012-10-24 | 上海寰创通信科技股份有限公司 | Relational data inquiring method for network management system |
| CN103559444A (en) * | 2013-11-05 | 2014-02-05 | 星云融创（北京）信息技术有限公司 | Sql (Structured query language) injection detection method and device |
| CN104714973A (en) * | 2013-12-17 | 2015-06-17 | 航天信息股份有限公司 | Method and device for processing query statements |
| CN106446235A (en) * | 2016-10-10 | 2017-02-22 | Tcl集团股份有限公司 | Video searching method and device |
| CN106897343A (en) * | 2016-07-20 | 2017-06-27 | 阿里巴巴集团控股有限公司 | The lookup method of executive plan, storage method and device |
| CN107229672A (en) * | 2017-04-20 | 2017-10-03 | 中国科学院计算机网络信息中心 | A kind of big data SQL query method and system for SolrCloud |
| CN108829884A (en) * | 2018-06-27 | 2018-11-16 | 中国建设银行股份有限公司 | data mapping method and device |
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| CN102682118A (en) * | 2012-05-15 | 2012-09-19 | 北京久其软件股份有限公司 | Multidimensional data model access method and device |
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| CN106446235A (en) * | 2016-10-10 | 2017-02-22 | Tcl集团股份有限公司 | Video searching method and device |
| CN107229672A (en) * | 2017-04-20 | 2017-10-03 | 中国科学院计算机网络信息中心 | A kind of big data SQL query method and system for SolrCloud |
| CN108829884A (en) * | 2018-06-27 | 2018-11-16 | 中国建设银行股份有限公司 | data mapping method and device |
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Application publication date: 20120425 |