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首先固然須要安裝好elastic search環境,最好再安裝上可視化插件 elasticsearch-head來便於咱們直觀地查看數據。web
固然這部分能夠參考本人的帖子: 《centos7上elastic search安裝填坑記》 https://www.jianshu.com/p/04f4d7b4a1d3spring
個人ES安裝在http://113.209.119.170:9200/這個地址(該地址須要配到springboot項目中去)sql
這部分沒有特殊要交代的,但有幾個注意點必定要小心apache
項目自動生成之後pom.xml中會自動添加spring-boot-starter-data-elasticsearch
的依賴:編程
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>
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jest
,因此還須要在pom.xml中添加jest
依賴:<dependency>
<groupId>io.searchbox</groupId>
<artifactId>jest</artifactId>
</dependency>
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jna
的依賴:<dependency>
<groupId>net.java.dev.jna</groupId>
<artifactId>jna</artifactId>
</dependency>
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不然啓動spring項目的時候會報JNA not found. native methods will be disabled.
的錯誤:c#
server:
port: 6325
spring:
elasticsearch:
jest:
uris:
- http://113.209.119.170:9200 # ES服務器的地址!
read-timeout: 5000
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個人項目代碼組織以下: centos
各部分代碼詳解以下,註釋都有:瀏覽器
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;
}
}
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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);
}
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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());
}
}
/**
* 批量保存內容到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中搜索內容
*/
@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;
}
}
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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;
}
}
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增長几條數據,可使用postman工具,也能夠直接在瀏覽器中輸入,如增長如下5條數據:springboot
http://localhost:6325/entityController/save?id=1&name=南京中山陵
http://localhost:6325/entityController/save?id=2&name=中國南京師範大學
http://localhost:6325/entityController/save?id=3&name=南京夫子廟
http://localhost:6325/entityController/save?id=4&name=杭州也很是不錯
http://localhost:6325/entityController/save?id=5&name=中國南邊好像沒有叫帶京字的城市了
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數據插入效果以下(使用可視化插件elasticsearch-head觀看):
咱們來作一下搜索的測試:例如我要搜索關鍵字「南京」 咱們在瀏覽器中輸入:
http://localhost:6325/entityController/search?name=南京
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搜索結果以下:
剛纔插入的5條記錄中包含關鍵字「南京」的四條記錄均被搜索出來了!
固然這裏用的是standard分詞方式,將每一箇中文都做爲了一個term,凡是包含「南」、「京」關鍵字的記錄都被搜索了出來,只是評分不一樣而已,固然還有其餘的一些分詞方式,此時須要其餘分詞插件的支持,此處暫不涉及,後文中再作探索。
做者更多的SpringBt實踐文章在此:
若是有興趣,也能夠抽點時間看看做者一些關於容器化、微服務化方面的文章: