Spring Boot integrated elasticsearch for simple additions, deletions and changes to the interface

Springboot Integrated Elasticsearch

In the Pom.xml file, the following versions of the jar packages are dependent:

<parent> <groupId>org.springframework.boot</groupId> <artifactId> Spring-boot-starter-parent</artifactid> <version>2.0.3.RELEASE</version> <relativePath/> <!--lookup parent from repository--></parent><properties> <project.build.sourceEncoding> Utf-8</project.build.sourceencoding> <project.reporting.outputencoding>utf-8</ Project.reporting.outputencoding> <java.version>1.8</java.version> <elasticsearch.version> 5.5.2</elasticsearch.version></properties><dependencies> <dependency> <groupid>org .springframework.boot</groupid> <artifactId>spring-boot-starter-web</artifactId> </dependen cy> <dependency> <groupId>org.projectlombok</groupId> <artifactid>lombok</a rtifactid> <optional>true</optional> </dependency> <dEpendency> <groupId>org.springframework.boot</groupId> <artifactid>spring-boot-starter- test</artifactid> <scope>test</scope> </dependency> <dependency> <gro Upid>org.elasticsearch.client</groupid> <artifactId>transport</artifactId> <version& Gt;${elasticsearch.version}</version> </dependency></dependencies>

The

Creates a new config package in the project, in which a Esconfig configuration class is created to construct the client instance object for ES. The code is as follows:

Package Org.zero01.elasticsearch.demo.config;import Org.elasticsearch.client.transport.transportclient;import Org.elasticsearch.common.settings.settings;import org.elasticsearch.common.transport.InetSocketTransportAddress ; Import Org.elasticsearch.transport.client.prebuilttransportclient;import Org.springframework.context.annotation.bean;import Org.springframework.context.annotation.configuration;import Java.net.inetaddress;import java.net.unknownhostexception;/** * @program: Es-demo * @description: ES configuration class * @author: * @c Reate:2018-06-28 22:32 **/@Configurationpublic class Esconfig {@Bean public transportclient client () throws Unknow                nhostexception {///9300 is the TCP service port for ES inetsockettransportaddress node = new Inetsockettransportaddress (        Inetaddress.getbyname ("192.168.190.129"), 9300); Set the configuration information for the ES node Settings Settings = Settings.builder (). Put ("Cluster.name", "es"). Bui        LD (); The client that instantiates ESLike transportclient client = new prebuilttransportclient (settings);        Client.addtransportaddress (node);    return client; }}

Query interface Development

I now have a structured index as follows:

There are some document data in the index, as follows:

Create a new controller package in the project, and create a new Bookcrudcontroller class in the package to demonstrate the ES Add and remove check and change interface demo. Let's start by developing a query interface with the following code:

Package Org.zero01.elasticsearch.demo.controller;import Org.elasticsearch.action.get.getresponse;import Org.elasticsearch.client.transport.transportclient;import Org.springframework.beans.factory.annotation.autowired;import Org.springframework.http.httpstatus;import Org.springframework.http.responseentity;import Org.springframework.web.bind.annotation.getmapping;import Org.springframework.web.bind.annotation.requestmapping;import Org.springframework.web.bind.annotation.requestparam;import org.springframework.web.bind.annotation.restcontroller;/** * @program: Es-demo * @description: Es additions and Deletions Check the interface demo * @author: * @create: 2018-07-01 10:42 **/@RestController @requestmapping ("/es/demo") public class Bookcrudcontroller {@Autowire    D Private Transportclient client; /** * Query by ID * @param ID * @return */@GetMapping ("/get/book/novel") public responseentity Searchbyid (@RequestParam ("id") String ID) {if (Id.isempty ()) {return new responseentity (HttpSTatus.        Not_found);        }//Query data by index, type, id to es GetResponse response = client.prepareget ("book", "novel", id). get ();        if (!response.isexists ()) {return new responseentity (Httpstatus.not_found);    }//Return the query to the data return new Responseentity (Response.getsource (), Httpstatus.ok); }}

Start the Springboot project and test with Postman, with the following query results:

New Interface Development

To develop new interfaces in the Bookcrudcontroller class, the code is as follows:

/** * Add Book Data * * @param title Book title * @param author book author * @param wordCount book Words * @param publishdate release time * @                          return */@PostMapping ("/add/book/novel") public responseentity Add (@RequestParam ("title") String title,                          @RequestParam ("author") String author, @RequestParam ("Word_count") int wordCount,                                  @RequestParam ("Publish_date") @DateTimeFormat (pattern = "Yyy-mm-dd HH:mm:ss") Date publishdate) {try {///to build a parameter into a JSON object xcontentbuilder content = XC Ontentfactory.jsonbuilder (). StartObject (). Field ("title", title). Field ("Aut                Hor ", author). field (" Word_count ", WordCount). Field (" Publish_date ", Publishdate.gettime ())        . EndObject ();              Indexresponse response = Client.prepareindex ("book", "novel"). SetSource (content)  . get ();    return new Responseentity (Response.getid (), Httpstatus.ok);        } catch (IOException e) {e.printstacktrace ();    return new responseentity (Httpstatus.internal_server_error); }}

Restart the Springboot project, test with postman, and the test results are as follows:

Using the returned ID to query the book data we just added, the results are as follows:

Remove interface Development

The code is as follows:

/** * 按id删除数据 * * @param id * @return */@DeleteMapping("/delete/book/novel")public ResponseEntity delete(@RequestParam("id") String id) {    DeleteResponse response = client.prepareDelete("book", "novel", id).get();    return new ResponseEntity(response.getResult(), HttpStatus.OK);}

Restart the Springboot project, test with postman, and delete the data successfully:

Update interface Development

The code is as follows:

/** * Update data for a document based on document ID * * @param ID * @param title * @param author * @param wordCount * @param publishdate * @return * * @Pu Tmapping ("/update/book/novel") Public responseentity Update (@RequestParam ("id") String ID, @Req Uestparam (value = "title", Required = False) String title, @RequestParam (value = "Author", req Uired = False) String author, @RequestParam (value = "Word_count", required = false) Integer wo Rdcount, @RequestParam (value = "Publish_date", required = False) @ DateTimeFormat (pattern = "Yyy-mm-dd HH:mm:ss") Date publishdate) {updaterequest up    Date = new Updaterequest ("book", "novel", id);        try {xcontentbuilder builder = Xcontentfactory.jsonbuilder (). StartObject ();        if (title = null) {Builder.field ("title", title);           } if (author! = null) { Builder.field ("author", author);        } if (WordCount! = null) {Builder.field ("Word_count", WordCount);        } if (publishdate! = null) {Builder.field ("Publish_date", Publishdate.gettime ());        } builder.endobject ();        Update.doc (builder);        Updateresponse response = client.update (update). get ();    return new Responseentity (Response.getresult (). toString (), Httpstatus.ok);        } catch (Exception e) {e.printstacktrace ();    return new responseentity (Httpstatus.internal_server_error); }}

For example, we want to modify the book data with the document ID Awq-n_xewwbfsfqzkrth:

Modify the title of the book and

Modification succeeded:

Complex query Interface Development

The code is as follows:

/** * Composite Query interface * * @param title * @param author * @param wordCount * @param publishdate * @param gtwordcount * @param ltword Count * @return */@PostMapping ("/query/book/novel") public responseentity query (@RequestParam (value = "title", required                            = False) string title, @RequestParam (value = "Author", required = False) string author, @RequestParam (value = "Word_count", required = False) Integer WordCount, @R Equestparam (value = "Publish_date", required = false) @DateTimeFormat (pattern = "Yyy-mm-dd hh:m M:ss ") Date publishdate, @RequestParam (value =" Gt_word_coun T ", DefaultValue =" 0 ") Integer gtwordcount, @RequestParam (value =" Lt_word_count ", required =    False) Integer Ltwordcount) {//Assembly query condition Boolquerybuilder boolquery = Querybuilders.boolquery (); if (title = null) {Boolquery.must (QUerybuilders.matchquery ("title", title));    } if (author! = null) {Boolquery.must (Querybuilders.matchquery ("author", author));    } if (WordCount! = null) {Boolquery.must (Querybuilders.matchquery ("Word_count", WordCount));    } if (publishdate! = null) {Boolquery.must (Querybuilders.matchquery ("Publish_date", publishdate));    }//With Word_count as the condition range rangequerybuilder rangequery = querybuilders.rangequery ("Word_count"). from (Gtwordcount);    if (ltwordcount! = null && ltwordcount > 0) {rangequery.to (ltwordcount);    } boolquery.filter (Rangequery); Assemble the query request Searchrequestbuilder Requestbuilder = Client.preparesearch ("book"). Settypes ("novel"). Setsearchtype (Searchtype.dfs_query_then_fetch). Setquery (Boolquery). Setfrom (0). SetSize (    10);    Send Query Request SearchResponse response = Requestbuilder.get (); Assemble the query to the dataset list<map<string, object>> result = new ARraylist<> ();    For (Searchhit searchHitFields:response.getHits ()) {Result.add (Searchhitfields.getsource ()); } return new Responseentity (result, Httpstatus.ok);}

Restart the Springboot project, test with postman, and the test results are as follows:

Spring Boot integrated elasticsearch for simple additions, deletions and changes to the interface