spring boot 模糊查询 springboot模糊搜索

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mob64ca1416b5a8 2024-01-16 06:49:08

文章标签 spring boot 模糊查询 spring List java 文章分类 spring boot 后端开发

作者：王帅@CodeSheep

实验环境

ES 版本：5.3.0
Spring Boot 版本：1.5.9

首先当然需要安装好 Elastic Search 环境，最好再安装上可视化插件 elasticsearch-head来便于我们直观地查看数据。

当然这部分可以参考本人的帖子：《centos7 上 elastic search安装填坑记》 https://www.jianshu.com/p/04f4d7b4a1d3

我的ES安装在http://113.209.119.170:9200/ 这个地址（该地址需要配到springboot项目中去）

Spring工程创建

这部分没有特殊要交代的，但有几个注意点一定要当心

注意在新建项目时记得勾选web和NoSQL中的Elasticsearch依赖，来张图说明一下吧：

spring boot 模糊查询 springboot模糊搜索_List

项目自动生成以后pom.xml中会自动添加 spring-boot-starter-data-elasticsearch的依赖：

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-data-elasticsearch</artifactId>

    </dependency>

本项目中我们使用开源的基于restful的es java客户端 jest，所以还需要在pom.xml中添加 jest依赖：

<dependency>

    <groupId>io.searchbox</groupId>

    <artifactId>jest</artifactId>

    </dependency>

除此之外还必须添加 jna的依赖：

<dependency>

    <groupId>net.java.dev.jna</groupId>

    <artifactId>jna</artifactId>

    </dependency>

否则启动spring项目的时候会报 JNAnotfound.nativemethods will be disabled.的错误：

spring boot 模糊查询 springboot模糊搜索_spring_02

项目的配置文件application.yml中需要把es服务器地址配置对

server:

    　　port: 6325

    spring:

        elasticsearch:

            jest:

                uris:

                - http://113.209.119.170:9200 # ES服务器的地址！

                read-timeout: 5000

代码组织

我的项目代码组织如下：

spring boot 模糊查询 springboot模糊搜索_spring_03

各部分代码详解如下，注释都有：

Entity.java

package com.hansonwang99.springboot_es_demo.entity;

    import java.io.Serializable;

    import org.springframework.data.elasticsearch.annotations.Document;

     

    public class Entity implements Serializable{

     

    private static final long serialVersionUID = -763638353551774166L;

     

    public static final String INDEX_NAME = "index_entity";

     

    public static final String TYPE = "tstype";

     

    private Long id;

     

    private String name;

     

    public Entity() {

    　　super();

    }

     

    public Entity(Long id, String name) {

    　　this.id = id;

    this.name = name;

    }

     

    public Long getId() {

    return id;

    }

     

    public void setId(Long id) {

    this.id = id;

    }

     

    public String getName() {

    return name;

    }

     

    public void setName(String name) {

    this.name = name;

    }

     

     

}

TestService.java

package com.hansonwang99.springboot_es_demo.service;

     

    import com.hansonwang99.springboot_es_demo.entity.Entity;

     

    import java.util.List;

     

    public interface TestService {

     

    void saveEntity(Entity entity);

     

    void saveEntity(List<Entity> entityList);

     

    List<Entity> searchEntity(String searchContent);

    }

TestServiceImpl.java

package com.hansonwang99.springboot_es_demo.service.impl;

     

    import java.io.IOException;

    import java.util.List;

     

    import com.hansonwang99.springboot_es_demo.entity.Entity;

    import com.hansonwang99.springboot_es_demo.service.TestService;

    import org.elasticsearch.index.query.QueryBuilders;

    import org.elasticsearch.search.builder.SearchSourceBuilder;

    import org.slf4j.Logger;

    import org.slf4j.LoggerFactory;

    import org.springframework.beans.factory.annotation.Autowired;

    import org.springframework.stereotype.Service;

    import io.searchbox.client.JestClient;

    import io.searchbox.client.JestResult;

    import io.searchbox.core.Bulk;

    import io.searchbox.core.Index;

    import io.searchbox.core.Search;

     

    @Service

    public class TestServiceImpl implements TestService {

     

    private static final Logger LOGGER = LoggerFactory.getLogger(TestServiceImpl.class);

     

    @Autowired

    private JestClient jestClient;

     

    @Override

    public void saveEntity(Entity entity) {

    Index index = new Index.Builder(entity).index(Entity.INDEX_NAME).type(Entity.TYPE).build();

    try {

    jestClient.execute(index);

    LOGGER.info("ES 插入完成");

    } catch (IOException e) {

    e.printStackTrace();

    LOGGER.error(e.getMessage());

    }

    }

     

     

    /**

    * 批量保存内容到ES

    */

    @Override

    public void saveEntity(List<Entity> entityList) {

    Bulk.Builder bulk = new Bulk.Builder();

    for(Entity entity : entityList) {

    Index index = new Index.Builder(entity).index(Entity.INDEX_NAME).type(Entity.TYPE).build();

    bulk.addAction(index);

    }

    try {

    jestClient.execute(bulk.build());

    LOGGER.info("ES 插入完成");

    } catch (IOException e) {

    e.printStackTrace();

    LOGGER.error(e.getMessage());

    }

    }

     

    /**

    * 在ES中搜索内容

    */

    @Override

    public List<Entity> searchEntity(String searchContent){

    SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();

    //searchSourceBuilder.query(QueryBuilders.queryStringQuery(searchContent));

    //searchSourceBuilder.field("name");

    searchSourceBuilder.query(QueryBuilders.matchQuery("name",searchContent));

    Search search = new Search.Builder(searchSourceBuilder.toString())

    .addIndex(Entity.INDEX_NAME).addType(Entity.TYPE).build();

    try {

    JestResult result = jestClient.execute(search);

    return result.getSourceAsObjectList(Entity.class);

    } catch (IOException e) {

    LOGGER.error(e.getMessage());

    e.printStackTrace();

    }

    return null;

    }

    }

EntityController.java

package com.hansonwang99.springboot_es_demo.controller;

     

    import java.util.ArrayList;

    import java.util.List;

     

    import com.hansonwang99.springboot_es_demo.entity.Entity;

    import com.hansonwang99.springboot_es_demo.service.TestService;

    import org.apache.commons.lang.StringUtils;

    import org.springframework.beans.factory.annotation.Autowired;

    import org.springframework.web.bind.annotation.RequestMapping;

    import org.springframework.web.bind.annotation.RequestMethod;

    import org.springframework.web.bind.annotation.RestController;

     

    @RestController

    @RequestMapping("/entityController")

    public class EntityController {

     

     

    @Autowired

    TestService cityESService;

     

    @RequestMapping(value="/save", method=RequestMethod.GET)

    public String save(long id, String name) {

    System.out.println("save 接口");

    if(id>0 && StringUtils.isNotEmpty(name)) {

    Entity newEntity = new Entity(id,name);

    List<Entity> addList = new ArrayList<Entity>();

    addList.add(newEntity);

    cityESService.saveEntity(addList);

    return "OK";

    }else {

    return "Bad input value";

    }

    }

     

    @RequestMapping(value="/search", method=RequestMethod.GET)

    public List<Entity> save(String name) {

    List<Entity> entityList = null;

    if(StringUtils.isNotEmpty(name)) {

    entityList = cityESService.searchEntity(name);

    }

    return entityList;

    }

    }