CN110019403A - A kind of querying method and relevant apparatus - Google Patents
A kind of querying method and relevant apparatus Download PDFInfo
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- CN110019403A CN110019403A CN201711447127.8A CN201711447127A CN110019403A CN 110019403 A CN110019403 A CN 110019403A CN 201711447127 A CN201711447127 A CN 201711447127A CN 110019403 A CN110019403 A CN 110019403A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2458—Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
- G06F16/2471—Distributed queries
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
- G06F16/252—Integrating or interfacing systems involving database management systems between a Database Management System and a front-end application
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/951—Indexing; Web crawling techniques
Abstract
This application involves Internet technical field more particularly to a kind of querying methods and relevant apparatus.The training method passes through the Controller layer of spring, Service layers and the dao layers of inquiry that can be realized to ES.Respective function is implemented separately in each layer, and the code developed in this way has hierarchy, code loose coupling.Furthermore, multiple realization classes are arranged in Service layers by configuration file in the embodiment of the present application, Controller, which passes through the JavaBean title received, can pass to corresponding parameter required realization class, only need one Service layers and one Controller layers, level more simplifies, convenient for exploitation.
Description
Technical field
This application involves Internet technical field more particularly to a kind of querying methods and relevant apparatus.
Background technique
ElasticSearch abbreviation ES is the search server for being based on Lucene (full-text search engine).It is provided
The full-text search engine of one distributed multi-user ability.With the fast development of big data technology, the demand day of ES is used
Become vigorous.(Java Application Programming Interface, computer programming language connect java api at present
Mouthful) although providing inquiry ES method, each user includes that each enterprise realizes that requiring oneself to the inquiry of ES writes
A set of code, and often the degree of coupling is higher for the code respectively write, and the generation added or modified is generally required in extension and modification
Code amount is huge, if also needing to learn the logic of source code when staff is unfamiliar with original code, this results in user to realize to ES
Inquiry workload it is huge, code development low efficiency.It is therefore desirable to a kind of practical ES query scheme convenient for loose coupling.
Summary of the invention
The embodiment of the present application provides a kind of querying method and relevant apparatus, existing in the prior art for looking into solve
The code degree of coupling for asking ES is high, realizes the problem of code development low efficiency of inquiry ES etc..
In a first aspect, a kind of querying method provided by the embodiments of the present application, which comprises
The query argument sent by Controller layers of receiving front-end, include: in the query argument index name,
JavaBean title and querying condition；
According to the corresponding relationship between JavaBean title in preset configuration file and Service layers of realization class, really
The corresponding realization class of JavaBean in the fixed query argument, and the index name and querying condition transmitting are determined
The realization class；
The querying condition and the index name are pre-processed by the realization class, obtain pre-processed results；
ElasticSearch is inquired after obtaining query result according to the pre-processed results by dao layers, by institute
It states query result and returns to Service layers；
After obtaining query result by described Service layers, the query result is returned to Controller layers；
The query result is sent to the front end by described Controller layers.
Wherein, described that ElasticSearch is inquired according to the pre-processed results by dao layers to obtain inquiry knot
After fruit, before the query result is returned to Service layers, the method also includes:
By in the pre-processed results the index name and the querying condition pass to dao layers.
Wherein, before the querying condition being transmitted to the determining realization class, the method also includes:
The querying condition is converted into key-value pair format.
Wherein, described Service layers of realization class is to first pass through JavaBean in advance to be injected into spring.
Second aspect, the application provide a kind of inquiry unit, and described device includes:
Parameter receiving module, the query argument for being sent by Controller layers of receiving front-end, the query argument
In include: index name, JavaBean title and querying condition；
Service Processing Module, for the realization class according to JavaBean title in preset configuration file and Service layers
Between corresponding relationship, determine the corresponding realization class of JavaBean in the query argument, and by the index name and institute
State the determining realization class of querying condition transmitting；
Preprocessing module, for being pre-processed by the realization class to the querying condition and the index name,
Obtain pre-processed results；
Enquiry module is looked into for being inquired according to the pre-processed results ElasticSearch by dao layers
After asking result, the query result is returned to Service layers；
First return module returns to the query result after obtaining query result by described Service layers
Controller layers；
Second return module, for the query result to be sent to the front end by described Controller layers.
Wherein, described device further include:
Transfer module, for the enquiry module by dao layers according to the pre-processed results to ElasticSearch
It is inquired after obtaining query result, it, will be in the pre-processed results before the query result is returned to Service layers
The index name and the querying condition pass to dao layers.
Wherein, described device further include:
Format converting module, for the realization class in the Service Processing Module that querying condition transmitting is determining
Before, the querying condition is converted into key-value pair format.
Wherein, described Service layers of realization class is to first pass through JavaBean in advance to be injected into spring.
The third aspect, the embodiment of the present application provide a kind of calculating equipment, including memory and processor, wherein described to deposit
Reservoir is for storing program instruction, and the processor is for calling the program instruction stored in the memory, according to acquisition
Program instruction executes any querying method of the embodiment of the present application.
Fourth aspect, the embodiment of the present application provide a kind of computer storage medium, and the computer storage medium is stored with
Computer executable instructions, the computer executable instructions are for executing the computer as the embodiment of the present application is any
The querying method.
In the embodiment of the present application, it can be realized by the Controller layer of spring, Service layers and dao layers to ES
Inquiry.Respective function is implemented separately in each layer, and the code developed in this way has hierarchy, code loose coupling.In addition, the application
In embodiment multiple realization classes are arranged in Service layer by configuration file, Controller is by receiving
JavaBean title realizes class required for can passing to corresponding parameter, it is only necessary to one Service layers and one
Controller layers, level more simplifies, convenient for exploitation.
Detailed description of the invention
Fig. 1 show application scenarios schematic diagram provided by the embodiments of the present application；
Fig. 2 show the flow diagram of querying method provided by the embodiments of the present application；
Fig. 3 show the embodiment of the present application and provides block schematic illustration of the ES in conjunction with spring；
Fig. 4 show the structural schematic diagram of inquiry unit provided by the embodiments of the present application；
Fig. 5 is the structural schematic diagram provided by the embodiments of the present application for calculating equipment.
Specific embodiment
Technical solution provided by the embodiments of the present application in order to facilitate understanding is with reference to the accompanying drawings of the specification implemented the application
Example is described in further detail.
Spring frame is the complexity due to software development and creates.Spring uses basic JavaBean
To complete to be only possible in the past by EJB (Enterprise JavaBean, the JavaEE server end of US Internet technology company
Component model) complete thing.However, it is found by the inventors that the purposes of Spring is not limited only to the exploitation of server end.It conforms to the principle of simplicity
For unisexuality, testability and loose coupling angle, most Java applications can be benefited from Spring.In view of
This is provided in the embodiment of the present application in order to enable the code of inquiry ES writes unified, specification and loose coupling in the embodiment of the present application
A kind of querying method, this method comprises:
The query argument sent by Controller layers of receiving front-end, include: in the query argument index name,
JavaBean title and querying condition；
According to the corresponding relationship between JavaBean title in preset configuration file and Service layers of realization class, really
The corresponding realization class of JavaBean in the fixed query argument, and the index name and querying condition transmitting are determined
The realization class；
The querying condition and the index name are pre-processed by the realization class, obtain pre-processed results；
ElasticSearch is inquired after obtaining query result according to the pre-processed results by dao layers, by institute
It states query result and returns to Service layers；
After obtaining query result by described Service layers, the query result is returned to Controller layers；
The query result is sent to the front end by described Controller layers.
In this way, passing through the Controller layer of spring, Service layers and the dao layers of inquiry that can be realized to ES.Each layer
Respective function is implemented separately, the code developed in this way has hierarchy, code loose coupling.In addition, leading in the embodiment of the present application
It crosses configuration file and multiple realization classes is set in Service layers, Controller passes through the JavaBean title received
Class is realized required for corresponding parameter is passed to, it is only necessary to which one Service layers and one Controller layers, level is more
Add simplification, convenient for exploitation.
For example, it can be the application scenarios schematic diagram of querying method provided by the embodiments of the present application with reference to Fig. 1.The scene
It such as may include user 10, terminal device 11 and server 12.Wherein, mountable in the terminal device 11 to have various clients
End, such as client, the client for inquiring news for inquiring paper etc..The client and server 12 of terminal device 11 is built
After vertical communication connection, query argument can be sent to server 12 by the client of terminal device 11.Passed through by server 12
Controller layers of reception query argument include: index name, JavaBean title and inquiry item in the query argument
Part；According to the corresponding relationship between JavaBean title in preset configuration file and Service layers of realization class, determine described in
The corresponding realization class of JavaBean in query argument, and will be described in the index name and querying condition transmitting determination
Realize class；The querying condition and the index name are pre-processed by the realization class, obtain pre-processed results；It is logical
It crosses dao layers to inquire after obtaining query result ElasticSearch according to the pre-processed results, by the query result
Return to Service layers；After obtaining query result by described Service layers, the query result is returned to
Controller layers；The query result is sent to the client of the terminal device 11 by described Controller layers.
Wherein, terminal device 11 and server 12 can be communicatively coupled by communication network, which can be local
Net, wide area network etc..Terminal device 11 can be mobile phone, tablet computer, laptop, personal computer etc., and server 12 can
Think any server apparatus that can support corresponding query service.
Embodiment one
Referring to Fig. 2, for the flow chart for the querying method that the embodiment of the present application one provides, comprising the following steps:
Step 201: including: rope in the query argument by the query argument of Controller layers of receiving front-end transmission
Draw title, JavaBean title and querying condition.
Wherein querying condition can be determined according to specific business, such as user wants to inquire certain article, then inquiry item
Part can be article name.
Wherein, for the ease of inquiry, in the embodiment of the present application by the determining realization class of querying condition transmitting it
Before, the method also includes: the querying condition is converted into key-value pair format.Namely it is converted into map format, in this way, can be with
Realize the quick search based on map format.Certainly, when it is implemented, the format of conversion can be selected according to actual business requirement,
The application is not construed as limiting this.
Step 202: according to corresponding between JavaBean title in preset configuration file and Service layers of realization class
Relationship, determines the corresponding realization class of JavaBean in the query argument, and by the index name and the querying condition
Transmit the determining realization class.
That is, including multiple realization classes in a configuration file, specific business is may be implemented in each realization class.These tools
The business of body can be configured according to their own needs in exploitation code by enterprise.But enterprise is without being concerned about Controller
Part code, it is possible to reduce the exploitation of Controller code, and realize loose coupling.
Step 203: the querying condition and the index name being pre-processed by the realization class, obtain pre- place
Manage result.
Wherein, how to be pre-processed and determined by specific business demand, carry out generation also according to business demand when exploitation
Code exploitation.
Step 204: ElasticSearch being inquired according to the pre-processed results by dao layers to obtain inquiry knot
After fruit, the query result is returned to Service layers.
Wherein, in order to be further reduced dao layers of code development quantity, pass through dao layers of basis described in the embodiment of the present application
The pre-processed results inquire after obtaining query result ES, before the query result is returned to Service layers, institute
State method further include: by the pre-processed results the index name and the querying condition pass to dao layers.That is,
Dao layers of index name is by Service layers of transmitting Lai then dao layers can also only have one layer.
Step 205: after obtaining query result by described Service layers, the query result being returned to
Controller layers.
Step 206: the query result being sent to the front end by described Controller layers.
Further, in order to realize preferably in conjunction with ES, the inquiry based on ES is realized, described in the embodiment of the present application
Service layers of realization class is to first pass through JavaBean in advance to be injected into spring.In other words, Service layers of effect is
Business processing, several inquiry modes of creation Service interface specification inquiry ES.Each business module is in query process
Personalisation process class is all to realize Service interface, configures a javaBean in each service class, and pass through
Service is injected into Spring, thus can transmit difference respectively by the title of java bean at Controller layers
Parameter to each Service realize class in.
Further, in order to reduce code development quantity, the inquiry sent by Controller layers of receiving front-end is joined
It counts, before including: index name, JavaBean title and querying condition in the query argument, the method also includes: root
Initialization connection is carried out according to the code of the connection pool for initializing connection ES encapsulated in advance.In this way, the generation of initialization connection
Packaged in advance when code, developer only needs to call this partial code, without rewriting.
Equally, some specified foundation class of BoolQueryBuilder qb can also encapsulate, and project initiation when
Wait creation.
Similarly, the function of query facility realization is fixed, and code can also encapsulate, so, in order to further decrease
Code development quantity, it is described that ElasticSearch is inquired according to the pre-processed results by dao layers to obtain inquiry knot
Fruit specifically includes: by dao layers of the query facilities encapsulated in advance according to the pre-processed results to ElasticSearch into
Row inquiry obtains query result.
With reference to Fig. 3, for the Web Frame Design figure combined based on ES query interface with Spring in the embodiment of the present application.
Wherein, when project initiation, initialization connection ES connection pool is realized using the code of encapsulation.Later, it is received by Controller layers
Query argument, and corresponding realization class in Service layers is determined according to the JavaBean in the query argument, and by query argument
In querying condition and index name be passed in corresponding realization class and pre-processed, then pretreated result is sent to
The dao layers of BoolQueryBuilder qb (the creation qb i.e. in figure) by dao layers according to creation inquires ES.Obtain query result
Service layers are transferred to by dao layers afterwards, Controller layers is then passed to, is last transmitted to front end.
In conclusion, so that code is clear, layering is clear by spring Mvc mode in the embodiment of the present application, reduce
The degree of coupling of each level code, change code are more convenient.In addition, being packaged to the api method of inquiry ES, remove
The creation of BoolQueryBuilder needs outside personalization write, other cumbersome connections and query portion all by
Frame is completed.Mitigate the burden of program development, Optimized code.Furthermore technical solution provided by the embodiments of the present application, it is more suitable
For Enterprise Development, in enterprise-level project research and development, programmer uses the business for only needing to handle well in Service layers
With Dao layers in inquire when effect to the creation of BoolQueryBuilder to each filter condition of determination, preferably
Form the research and development of batch production.
Embodiment two
Based on the inventive concept being the same as example 1, the embodiment of the present application also provides a kind of inquiry unit, the device
Principle and beneficial effect are similar to content described in above method embodiment, and details are not described herein.
As shown in figure 4, being the structural schematic diagram of the device, described device includes:
Parameter receiving module 401, the query argument for being sent by Controller layers of receiving front-end, the inquiry ginseng
It include: index name, JavaBean title and querying condition in number；
Service Processing Module 402, for the realization according to JavaBean title in preset configuration file and Service layers
Corresponding relationship between class, determines the corresponding realization class of JavaBean in the query argument, and by the index name and
The determining realization class of the querying condition transmitting；
Preprocessing module 403, for being located in advance by the realization class to the querying condition and the index name
Reason, obtains pre-processed results；
Enquiry module 404, for inquire to ElasticSearch according to the pre-processed results by dao layers
To after query result, the query result is returned to Service layers；
First return module 405 returns the query result after obtaining query result by described Service layers
Back to Controller layers；
Second return module 406, for the query result to be sent to the front end by described Controller layers.
Wherein, described device further include:
Transfer module, for the enquiry module by dao layers according to the pre-processed results to ElasticSearch
It is inquired after obtaining query result, it, will be in the pre-processed results before the query result is returned to Service layers
The index name and the querying condition pass to dao layers.
Wherein, described device further include:
Format converting module, for the realization class in the Service Processing Module that querying condition transmitting is determining
Before, the querying condition is converted into key-value pair format.
Wherein, described Service layers of realization class is to first pass through JavaBean in advance to be injected into spring.
Device provided by the embodiments of the present application by the Controller layer of spring, Service layers and dao layers can be real
Now to the inquiry of ES.Respective function is implemented separately in each layer, and the code developed in this way has hierarchy, code loose coupling.In addition,
In the embodiment of the present application multiple realization classes are arranged in Service layer by configuration file, Controller is by receiving
JavaBean title realizes class required for can passing to corresponding parameter, it is only necessary to one Service layers and one
Controller layers, level more simplifies, convenient for exploitation.
Embodiment three
The embodiment of the present application three additionally provides a kind of calculating equipment, which is specifically as follows desktop computer, just
Take formula computer, smart phone, tablet computer, personal digital assistant (Personal Digital Assistant, PDA) etc..
As shown in figure 5, the calculating equipment may include 501, memory central processing unit (Center Processing Unit, CPU)
502, input equipment 503, output equipment 504 etc., input equipment may include keyboard, mouse, touch screen etc., and output equipment can be with
Including showing equipment, such as liquid crystal display (Liquid Crystal Display, LCD), cathode-ray tube (Cathode Ray
Tube, CRT) etc..
Memory may include read-only memory (ROM) and random access memory (RAM), and provide storage to processor
The program instruction and data stored in device.In the embodiment of the present application, memory can be used for storing image text Matching Model
Training method and/or image text bidirectional research method program instruction.The program that processor passes through calling memory storage
Instruction, processor are used to execute according to the program instruction of acquisition:
The query argument sent by Controller layers of receiving front-end, include: in the query argument index name,
JavaBean title and querying condition；
According to the corresponding relationship between JavaBean title in preset configuration file and Service layers of realization class, really
The corresponding realization class of JavaBean in the fixed query argument, and the index name and querying condition transmitting are determined
The realization class；
The querying condition and the index name are pre-processed by the realization class, obtain pre-processed results；
ElasticSearch is inquired after obtaining query result according to the pre-processed results by dao layers, by institute
It states query result and returns to Service layers；
After obtaining query result by described Service layers, the query result is returned to Controller layers；
The query result is sent to the front end by described Controller layers.
Example IV
The embodiment of the present application four provides a kind of computer storage medium, by being stored as based on used in above-mentioned calculating equipment
Calculation machine program instruction, it includes the programs for executing above-mentioned querying method.
The computer storage medium can be any usable medium or data storage device that computer can access, packet
Include but be not limited to magnetic storage (such as floppy disk, hard disk, tape, magneto-optic disk (MO) etc.), optical memory (such as CD, DVD,
BD, HVD etc.) and semiconductor memory (such as it is ROM, EPROM, EEPROM, nonvolatile memory (NAND FLASH), solid
State hard disk (SSD)) etc..
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although
The application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of querying method, which is characterized in that the described method includes:
The query argument sent by Controller layers of receiving front-end, include: in the query argument index name,
JavaBean title and querying condition；
According to the corresponding relationship between JavaBean title in preset configuration file and Service layers of realization class, institute is determined
State the corresponding realization class of JavaBean in query argument, and the institute that the index name and querying condition transmitting is determining
State realization class；
The querying condition and the index name are pre-processed by the realization class, obtain pre-processed results；
ElasticSearch is inquired after obtaining query result according to the pre-processed results by dao layers, is looked into described
It askes result and returns to Service layers；
After obtaining query result by described Service layers, the query result is returned to Controller layers；
The query result is sent to the front end by described Controller layers.
2. the method according to claim 1, wherein it is described by dao layers according to the pre-processed results pair
ElasticSearch is inquired after obtaining query result, before the query result is returned to Service layers, the side
Method further include:
By in the pre-processed results the index name and the querying condition pass to dao layers.
3. the method according to claim 1, wherein by the determining realization class of querying condition transmitting it
Before, the method also includes:
The querying condition is converted into key-value pair format.
4. method according to claim 1 to 3, which is characterized in that described Service layers of realization class is preparatory
It is injected into spring by JavaBean.
5. a kind of inquiry unit, which is characterized in that described device includes:
Parameter receiving module, the query argument for being sent by Controller layers of receiving front-end wrap in the query argument
It includes: index name, JavaBean title and querying condition；
Service Processing Module, for according between JavaBean title in preset configuration file and Service layers of realization class
Corresponding relationship, determine the corresponding realization class of JavaBean in the query argument, and by the index name and described look into
The determining realization class of inquiry condition transmitting；
Preprocessing module is obtained for being pre-processed by the realization class to the querying condition and the index name
Pre-processed results；
Enquiry module obtains inquiry knot for being inquired according to the pre-processed results ElasticSearch by dao layers
After fruit, the query result is returned to Service layers；
First return module returns to the query result after obtaining query result by described Service layers
Controller layers；
Second return module, for the query result to be sent to the front end by described Controller layers.
6. device according to claim 5, which is characterized in that described device further include:
Transfer module, for being carried out according to the pre-processed results to ElasticSearch in the enquiry module by dao layers
After inquiry obtains query result, before the query result is returned to Service layers, described in the pre-processed results
Index name and the querying condition pass to dao layers.
7. device according to claim 5, which is characterized in that described device further include:
Format converting module, for the Service Processing Module by the determining realization class of querying condition transmitting it
Before, the querying condition is converted into key-value pair format.
8. according to the device any in claim 5-7, described Service layers of realization class is to first pass through JavaBean in advance
It is injected into spring.
9. a kind of calculating equipment, which is characterized in that including memory and processor, wherein the memory is for storing program
Instruction, the processor are executed according to the program instruction of acquisition as weighed for calling the program instruction stored in the memory
Benefit requires 1~4 any querying method.
10. a kind of computer storage medium, which is characterized in that the computer storage medium is stored with the executable finger of computer
It enables, the computer executable instructions are used to that the computer to be made to execute such as the issuer as described in Claims 1 to 4 is any
Method.
Priority Applications (1)
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|---|---|---|---|
| CN201711447127.8A CN110019403B (en) | 2017-12-27 | 2017-12-27 | Query method and related device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711447127.8A CN110019403B (en) | 2017-12-27 | 2017-12-27 | Query method and related device |
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| CN110019403A true CN110019403A (en) | 2019-07-16 |
| CN110019403B CN110019403B (en) | 2021-06-22 |
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