SpringBoot集成ES实战
SpringBoot 集成 ES 实战（仅代码，用作以后参考）
Myconfig.java 配置类
package org.sophia.elasticsearchlearn;
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;
@Configuration
public class MyConfig {
/**
* es的构造
* @return
* @throws UnknownHostException
*/
@Bean
public TransportClient client() throws UnknownHostException {
InetSocketTransportAddress node = new InetSocketTransportAddress(
InetAddress.getByName("localhost"),
9300
);
Settings settings = Settings.builder()
.put("cluster.name", "wali")
.build();
TransportClient client = new PreBuiltTransportClient(settings);
client.addTransportAddress(node);
return client;
}
}
Application.java 增删改查操作类
package org.sophia.elasticsearchlearn;
import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchRequestBuilder;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.search.SearchType;
import org.elasticsearch.action.update.UpdateRequest;
import org.elasticsearch.action.update.UpdateResponse;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.query.RangeQueryBuilder;
import org.elasticsearch.search.SearchHit;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
@SpringBootApplication
@RestController
public class Application {
@Autowired
private TransportClient client;
@GetMapping("/")
public String index(){
return "index";
}
/**
* 根据ID查询
* @param id
* @return
*/
@GetMapping("/get/people/man")
@ResponseBody
public ResponseEntity get(@RequestParam(name = "id", defaultValue = "") String id){
if(id.isEmpty()){
return new ResponseEntity(HttpStatus.NOT_FOUND);
}
//prepareGet预执行
GetResponse result = this.client.prepareGet("people", "man", id).get();
if(! result.isExists()){
return new ResponseEntity(HttpStatus.NOT_FOUND);
}
return new ResponseEntity(result.getSource(), HttpStatus.OK);
}
/**
* 增加
* @param name
* @param age
* @param date
* @param country
* @return
*/
@PostMapping("/add/people/man")
@ResponseBody
public ResponseEntity add(
@RequestParam(name = "name") String name,
@RequestParam(name = "age") int age,
@RequestParam(name = "date") @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") Date date,
@RequestParam(name = "country") String country
){
try {
XContentBuilder content = XContentFactory.jsonBuilder()
.startObject()
.field("name", name)
.field("age", age)
.field("date", date.getTime())
.field("country", country)
.endObject();
// prepareIndex构建索引
IndexResponse result = this.client.prepareIndex("people", "man")
.setSource(content)
.get();
return new ResponseEntity(result.getId(), HttpStatus.OK);
} catch (IOException e) {
e.printStackTrace();
return new ResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR);
}
}
/**
* 根据ID删除
* @param id
* @return
*/
@DeleteMapping("/del/people/man")
@ResponseBody
public ResponseEntity del(@RequestParam(name = "id") String id){
DeleteResponse result = this.client.prepareDelete("people", "man", id).get();
return new ResponseEntity(result.getResult().toString(), HttpStatus.OK);
}
/**
* 根据ID更新
* @param id
* @param name
* @param age
* @param date
* @param country
* @return
*/
@PutMapping("/update/people/man")
@ResponseBody
public ResponseEntity update(@RequestParam(name = "id") String id,
@RequestParam(name = "name", required = false) String name,
@RequestParam(name = "age", required = false) Integer age,
@RequestParam(name = "date", required = false) @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss") Date date,
@RequestParam(name = "country", required = false) String country){
UpdateRequest update = new UpdateRequest("people", "man", id);
try {
XContentBuilder content = XContentFactory.jsonBuilder()
.startObject();
if(null != name){
content.field("name", name);
}
if(null != age){
content.field("age", age);
}
if(null != date){
content.field("date", date);
}
if(null != country){
content.field("country", country);
}
content.endObject();
update.doc(content);
} catch (IOException e) {
e.printStackTrace();
return new ResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR);
}
try {
UpdateResponse result = this.client.update(update).get();
return new ResponseEntity(result.getResult().toString(), HttpStatus.OK);
} catch (InterruptedException e) {
e.printStackTrace();
return new ResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR);
} catch (ExecutionException e) {
e.printStackTrace();
return new ResponseEntity(HttpStatus.INTERNAL_SERVER_ERROR);
}
}
/**
* 复合条件查询
* @param name
* @param minAge
* @param maxAge
* @return
*/
@PostMapping("/query/people/man")
@ResponseBody
public ResponseEntity query(
@RequestParam(name = "name", required = false) String name,
@RequestParam(name = "gt_age", defaultValue = "0") Integer minAge,
@RequestParam(name = "lt_age", required = false) Integer maxAge
){
BoolQueryBuilder boolQuery = QueryBuilders.boolQuery();
if(null != name){
boolQuery.must(QueryBuilders.matchQuery("name", name));
}
RangeQueryBuilder rangeQuery = QueryBuilders.rangeQuery("age")
.from(minAge);
if(null != maxAge && 0 < maxAge){
rangeQuery.to(maxAge);
}
boolQuery.filter(rangeQuery);
SearchRequestBuilder builder = this.client.prepareSearch("people")
.setTypes("man")
.setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
.setQuery(boolQuery)
.setFrom(0)
.setSize(10);
// System.out.println(builder);
SearchResponse response = builder.get();
List> result = new ArrayList>();
for(SearchHit hit : response.getHits()){
result.add(hit.getSource());
}
return new ResponseEntity(result, HttpStatus.OK);
}
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
pom.xml maven配置
4.0.0
org.sophia
elasticsearchlearn
0.0.1-SNAPSHOT
jar
elasticsearchlearn
Demo project for Spring Boot
org.springframework.boot
spring-boot-starter-parent
2.0.1.RELEASE
UTF-8
UTF-8
1.8
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-test
test
org.elasticsearch.client
transport
5.5.2
org.apache.logging.log4j
log4j-core
2.11.0
org.springframework.boot
spring-boot-maven-plugin
代码源于慕课网的 《ElasticSearch入门》课程，纯手打，用作以后参考