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一.什么是Easy-Es

二.为什么要使用Easy-Es

三.Spring整合Easy-Es

1.依赖
 

<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!-- lombok插件依赖 --><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><scope>provided</scope></dependency><!-- Easy-Es暂不支持SpringBoot3.X，且推荐Elasticsearch版本为7.14.0 --><dependency><groupId>cn.easy-es</groupId><artifactId>easy-es-boot-starter</artifactId><version>1.1.1</version><exclusions><exclusion><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></exclusion><exclusion><groupId>org.elasticsearch.client</groupId><artifactId>elasticsearch-rest-high-level-client</artifactId></exclusion><exclusion><groupId>org.elasticsearch</groupId><artifactId>elasticsearch</artifactId></exclusion></exclusions></dependency><dependency><groupId>org.elasticsearch.client</groupId><artifactId>elasticsearch-rest-high-level-client</artifactId><version>7.14.0</version></dependency><dependency><groupId>org.elasticsearch</groupId><artifactId>elasticsearch</artifactId><version>7.14.0</version></dependency>
</dependencies>

2.配置
 

easy-es:enable: trueaddress : 服务器地址:9200global-config:process_index_mode: manual

3.启动类

@SpringBootApplication
@EsMapperScan("com.easyes.mapper")
public class EasyEsApplication {public static void main(String[] args) {SpringApplication.run(EasyEsApplication.class, args);}}

4.mapper

 
public interface DocumentMapper  extends BaseEsMapper<Document> {}

5.service

package com.easyes.service;import com.easyes.entity.Document;import java.util.List;public interface IDocumentService{/*** 查询ES所有数据* @return 查询Document结果对象集合*/List<Document> findAllData();/*** 创建索引* @return 结果信息* @throws Exception*/String createIndex() throws Exception;/*** 删除索引* @return 结果信息*/String deleteIndex();/*** ES新增数据* @param document 新增数据实体类* @return 结果信息* @throws Exception*/String addData(Document document) throws Exception;/*** 根据id删除ES数据* @param id 需要删除的数据的id* @return*/String deleteDataById(String id);/*** 修改ES数据* @param document 修改数据对象*/String updateData(Document document);/*** 分词匹配查询content字段* @param value 查询内容* @return*/List<Document> findMatch(String value);/*** 根据id查询数据* @param id 查询id* @return*/Document findById(String id);
}

6.serviceImpl

package com.easyes.service.impl;import cn.easyes.common.utils.StringUtils;
import cn.easyes.core.conditions.LambdaEsQueryWrapper;
import com.easyes.entity.Document;
import com.easyes.mapper.DocumentMapper;
import com.easyes.service.IDocumentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.Date;
import java.util.List;@Service
public class DocumentServiceImpl implements IDocumentService {@Autowiredprivate DocumentMapper documentMapper;/*** 查询ES所有数据* @return 查询Document结果对象集合*/@Overridepublic List<Document> findAllData() {LambdaEsQueryWrapper<Document> wrapper = new LambdaEsQueryWrapper<>();wrapper.matchAllQuery();return documentMapper.selectList(wrapper);}/*** 创建索引* @return 结果信息* @throws Exception*/@Overridepublic String createIndex() throws Exception {StringBuilder msg = new StringBuilder();String indexName = Document.class.getSimpleName().toLowerCase();boolean existsIndex = documentMapper.existsIndex(indexName);if (existsIndex){throw new Exception("Document实体对应索引已存在,删除索引接口：deleteIndex");}boolean success = documentMapper.createIndex();if (success){msg.append("Document索引创建成功");}else {msg.append("索引创建失败");}return msg.toString();}/*** 删除索引* @return 结果信息*/@Overridepublic String deleteIndex() {StringBuilder msg = new StringBuilder();String indexName = Document.class.getSimpleName().toLowerCase();if (documentMapper.deleteIndex(indexName)){msg.append("删除成功");}else {msg.append("删除失败");}return msg.toString();}/*** ES新增数据* @param document 新增数据实体类* @return 结果信息* @throws Exception*/@Overridepublic String addData(Document document) throws Exception {if (StringUtils.isEmpty(document.getTitle()) || StringUtils.isEmpty(document.getContent())) {throw new Exception("请补全title及content数据");}document.setCreateTime(new Date());documentMapper.insert(document);return "Added successfully！";}/*** 根据id删除ES数据* @param id 需要删除的数据的id* @return*/@Overridepublic String deleteDataById(String id) {documentMapper.deleteById(id);return "Success";}/*** 修改ES数据* @param document 修改数据对象*/@Overridepublic String updateData(Document document) {documentMapper.updateById(document);return "Success";}/*** 分词匹配查询content字段* @param value 查询内容* @return*/@Overridepublic List<Document> findMatch(String value) {LambdaEsQueryWrapper<Document> wrapper = new LambdaEsQueryWrapper<>();wrapper.match(Document::getContent,value);wrapper.orderByDesc(Document::getCreateTime);List<Document> documents = documentMapper.selectList(wrapper);return documents;}/*** 根据id查询数据* @param id* @return*/@Overridepublic Document findById(String id) {return null;}
}

7.controller

package com.easyes.controller;import com.easyes.entity.Document;
import com.easyes.service.IDocumentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;import java.util.List;@RestController
public class DocumentController {@Autowiredprivate IDocumentService iDocumentService;/*** 创建索引* @return 结果信息* @throws Exception*/@GetMapping("/createIndex")public String createIndex() throws Exception {return iDocumentService.createIndex();}/*** 删除索引* @return 结果信息*/@GetMapping("/deleteIndex")public String deleteIndex(){return iDocumentService.deleteIndex();}/*** 查询ES所有数据* @return 查询Document结果对象集合*/@GetMapping("/findAll")public List<Document> findAll(){return iDocumentService.findAllData();}/*** 根据id查询数据* @param id 查询数据的id* @return 查询Document结果对象*/@GetMapping("/findById")public Document findById(String id){return iDocumentService.findById(id);}/*** ES新增数据* @param document 新增数据对象* @return 结果信息* @throws Exception*/@GetMapping("/add")public String addData(@RequestBody Document document) throws Exception {return iDocumentService.addData(document);}/*** 修改ES数据* @param document 修改数据对象*/@GetMapping("/update")public String updateData(@RequestBody Document document){return iDocumentService.updateData(document);}/*** 根据id删除ES数据* @param id 需要删除的数据的id* @return*/@GetMapping("/delete")public String deleteData(String id){return iDocumentService.deleteDataById(id);}/*** 分词匹配查询content字段* @param value 查询内容* @return*/@GetMapping("/match")public List<Document> findMatch(String value){return iDocumentService.findMatch(value);}
}

实体类注解

// Lombok 注解，自动为类生成 getter 和 setter 方法
@Data
// 指定 Elasticsearch 索引名及分片数
@IndexName(value = "user_es", shardsNum = 3)
public class User {/*** 用户ID* 使用自定义ID类型*/@IndexId(type = IdType.CUSTOMIZE)private Integer id;/*** 用户姓名* 字段类型为 TEXT，使用 IK 最大词元分词器进行索引和搜索* 在搜索结果中，匹配的部分将被高亮显示*/@IndexField(value = "userName", fieldType = FieldType.TEXT, analyzer = Analyzer.IK_MAX_WORD, searchAnalyzer = Analyzer.IK_MAX_WORD)@HighLight(preTag = "<span style=\"color:red\">", postTag = "</span>")private String name;/*** 用户年龄* 字段类型为 INTEGER*/@IndexField(fieldType = FieldType.INTEGER)private Integer age;/*** 用户工资* 字段类型为 DOUBLE*/@IndexField(fieldType = FieldType.DOUBLE)private BigDecimal salary;/*** 用户生日* 字段类型为 DATE*/@IndexField(fieldType = FieldType.DATE)private Date birthday;
}