SpringBoot 集成Elasticsearch简单八步

     Elasticsearch是一个开源的高扩展的分布式全文检索引擎，它可以近乎实时的存储、检索数据；本身扩展性很好，可以扩展到上百台服务器，处理PB级别的数据。 
Elasticsearch也使用Java开发并使用Lucene作为其核心来实现所有索引和搜索的功能，但是它的目的是通过简单的RESTful API来隐藏Lucene的复杂性，从而让全文搜索变得简单。

        
        
            org.springframework.boot
            spring-boot-starter-data-elasticsearch
        
        
            io.searchbox
            jest
        

spring:
  elasticsearch:
    jest:
      uris:
        - http://localhost:9200
      read-timeout: 5000

package com.zx.log.controller;


import com.zx.log.entity.UserOperationLog;
import com.zx.log.service.visit.UserOperationLogService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Properties;
import java.util.UUID;


@RestController
@Api(tags = "测试测试")
@RequestMapping("/mytest")
public class MyTestController {




    @Autowired
    private UserOperationLogService userOperationLogService;

    
    @RequestMapping(value = "/createIndex")
    public String createIndex() {
        userOperationLogService.createIndex("test");
        return "ok";
    }

    
    @RequestMapping(value = "/saveEntity")
    public String saveEntity() {
        UserOperationLog userOperationLog = new UserOperationLog();
        userOperationLog.setNumId(UUID.randomUUID().toString().replace("-", ""));
        userOperationLog.setAppName("111");
        userOperationLog.setAppEnName("appEnName");
        userOperationLog.setFunName("funName");
        userOperationLog.setFunEnName("funEnName");
        userOperationLog.setOpType("opType");
        userOperationLogService.saveEntity(userOperationLog);
        return "ok";
    }

    @RequestMapping(value = "/delEntity")
    public String delEntity() {
        userOperationLogService.delEntity("JkJSIIIBXZZ9IO25Drr1");
        return "ok";
    }

 
}

package com.zx.log.service.visit;

import com.zx.log.entity.UserOperationLog;

import java.util.List;


public interface UserOperationLogService {

    
    void saveEntity(UserOperationLog entity);

    
    void delEntity(String id);

    
    void saveEntity(List entityList);

    
    List searchEntity(String searchContent);
    

    void createIndex(String indexName);

    
    void deleteIndex(String indexName);

}

import io.searchbox.client.JestClient;
import io.searchbox.client.JestResult;
import io.searchbox.core.Bulk;
import io.searchbox.core.Delete;
import io.searchbox.core.Index;
import io.searchbox.core.Search;
import io.searchbox.indices.CreateIndex;
import io.searchbox.indices.DeleteIndex;
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 java.io.IOException;
import java.util.List;



@Service
public class UserOperationLogServiceImpl implements UserOperationLogService {

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

    @Autowired
    private JestClient jestClient;

    @Override
    public void saveEntity(UserOperationLog entity) {
        Index index = new Index.Builder(entity).id(entity.getNumId()).index("test").type("news").build();
        try {
            jestClient.execute(index);
            LOGGER.info("插入完成");
        } catch (IOException e) {
            e.printStackTrace();
            LOGGER.error(e.getMessage());
        }
    }

    @Override
    public void delEntity(String id) {
        Delete index = new Delete.Builder(id).index("test").type("news").build();
        try {
            jestClient.execute(index);
            LOGGER.info("删除完成");
        } catch (IOException e) {
            e.printStackTrace();
            LOGGER.error(e.getMessage());
        }
    }


    @Override
    public void saveEntity(List entityList) {
        Bulk.Builder bulk = new Bulk.Builder();
        for (UserOperationLog entity : entityList) {
            Index index = new Index.Builder(entity).id(String.valueOf(entity.getNumId())).index("test").type("news").build();
            bulk.addAction(index);
        }
        try {
            jestClient.execute(bulk.build());
            LOGGER.info("批量插入完成");
        } catch (IOException e) {
            e.printStackTrace();
            LOGGER.error(e.getMessage());
        }
    }

    
    @Override
    public List searchEntity(String searchContent) {
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        searchSourceBuilder.query(QueryBuilders.matchQuery("studentName", searchContent));
        Search search = new Search.Builder(searchSourceBuilder.toString())
                .addIndex("test").addType("news").build();
        try {
            JestResult result = jestClient.execute(search);
            return result.getSourceAsObjectList(UserOperationLog.class);
        } catch (IOException e) {
            LOGGER.error(e.getMessage());
            e.printStackTrace();
        }
        return null;
    }


    
    @Override
    public void createIndex(String indexName) {
        try {
            CreateIndex createIndex = new CreateIndex.Builder(indexName).build();
            JestResult result = jestClient.execute(createIndex);
            LOGGER.info("result", result.getJsonString());
        } catch (Exception e) {
            LOGGER.error(e.getMessage());
            e.printStackTrace();
        }
    }

    
    @Override
    public void deleteIndex(String indexName) {
        try {
            DeleteIndex deleteIndex = new DeleteIndex.Builder(indexName).build();
            JestResult result = jestClient.execute(deleteIndex);
            LOGGER.info("result", result.getJsonString());
        } catch (Exception e) {
            LOGGER.error(e.getMessage());
            e.printStackTrace();
        }

    }

}

   上面的实体类大家可以自由发挥，随便创建一个就行并指定数据行ID，主要方便数据后续的删除。