Spring boot整合Elasticsearch

使用的版本

Spring boot 2.0.0.RELEASE

Elasticsearch 6.6.0 

 

引入spring-boot-starter-data-elasticsearch依賴

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>

 

創建Entity

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


//indexName:索引,type:類型
@Document(indexName="db_index",type="user")
public class User{
	
    //標記Id
	@Id
	private Long id;
	
	private String name;
	
	private int age;
	
	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;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	
	

}

創建Dao

import java.util.List;

import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Component;

import cn.wechar.elasticsearch.entity.User;

@Component
public interface UserDao extends ElasticsearchRepository<User,Long>{
	List<User> findByNameLike(String name,Pageable pageable);
}

附dao語法:

 Controller測試

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;


import org.elasticsearch.index.query.QueryBuilders;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.elasticsearch.core.query.NativeSearchQueryBuilder;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import cn.wechar.elasticsearch.dao.FrScanStatisticsDao;
import cn.wechar.elasticsearch.dao.UserDao;
import cn.wechar.elasticsearch.entity.FrScanStatistics;
import cn.wechar.elasticsearch.entity.User;

@RestController
public class UserController {

	@Autowired
	UserDao userDao;
	
	@Autowired
	FrScanStatisticsDao frScanStatisticsDao;
	
	//保存
	@RequestMapping("/save")
	public String save(@RequestBody User user) {
		System.out.println(user.getId());
		userDao.save(user);
		return "success";    
    }
	
	//搜索
	@RequestMapping("/searchName")
	@CrossOrigin
	public List<FrScanStatistics> searchName(String name) {
		// 構建查詢條件
	    NativeSearchQueryBuilder queryBuilder = new NativeSearchQueryBuilder();
	    // 添加基本分詞查詢
	    queryBuilder.withQuery(QueryBuilders.matchQuery("name", name));
	    // 添加分頁查詢
	    queryBuilder.withPageable(PageRequest.of(0, 5));
	    
	    //Page<User> search = userDao.search(queryBuilder.build());
	    Page<FrScanStatistics> search = frScanStatisticsDao.search(queryBuilder.build());
		//List<User> findByName = userDao.findByNameLike(QueryParser.escape(name).trim().replace(" ",""),PageRequest.of(0, 5));
		return search.getContent();    
    }
}