springBoot+elasticsearch项目整合demo

Demo实现的功能

springBoot集成elasticsearch(下面简称es)有2种实现方案, 一种是基于Jest, 另一种是基于springDataElasticsearch, 我们此次整合采用后者实现.
简单实现对es搜索引擎, 添加索引数据, 查询数据等操作.

github源码地址

https://github.com/mikewuhao/springBoot-es-demo

搭建详细步骤

1. 准备工作
1.1 提前把es环境搭建和启动好, 注意好es版本匹配(本人用的是6.4.3版本)
(本人开始打算用windows环境部署es, 发现从官网下载好慢, 改从虚拟机上使用docker部署es, 参考本人博客: https://blog.csdn.net/mikewuhao/article/details/106690887)

1.2 提前把es的head可视化插件配置好(Kibana插件也可以)
参考本人的博客:https://blog.csdn.net/mikewuhao/article/details/106682282

2. 项目结构

在idea开发工具里面新建maven类型的project, 命名为springBoot-es-demo
按上图目录结构建包
2.1 pom文件

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.wuhao.demo</groupId>
<artifactId>springBootEs</artifactId>
<version>1.0-SNAPSHOT</version>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath/> 
</parent>

<dependencies>


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

<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>


<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.38</version>
</dependency>


<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.0</version>
<scope>provided</scope>
</dependency>

<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>2.7.3</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>

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

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>

</project>

2.2 配置文件application.properties

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logging.level.org.springframework=DEBUG

#端口配置
server.port=8085

#es地址
spring.data.elasticsearch.cluster-nodes=192.168.175.145:9300
spring.data.elasticsearch.cluster-name=docker-cluster

2.3 启动类, EsApplication

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package com.wuhao;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
public class EsApplication {
public static void main(String[] args) {
SpringApplication.run(EsApplication.class,args);
}
}

2.4 控制层EsController

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package com.wuhao.controller;

import com.wuhao.domain.User;
import com.wuhao.repository.UserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.Optional;

@RestController
public class EsController {

@Autowired
private UserRepository userRepository;

/**
* 数据添加进es
*/
@RequestMapping("/addUser2Es")
public void addUser2Es(){
User user= new User();
user.setId(1L);
user.setAddress("北京");
user.setSex("男");
user.setUserName("mike");
userRepository.index(user);
}

/**
* 从es查询数据
*/
@RequestMapping("/query")
public String query(){
List<User> userList = userRepository.findByUserNameLike("mike");
return userList.toString();

}

}

2.5实体类, User

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package com.wuhao.domain;

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

@Document(indexName = "user_index", type = "user")
public class User {

private Long id;

private String userName;

private String birthday;

private String sex;

private String address;

public Long getId() {
return id;
}

public void setId(Long id) {
this.id = id;
}

public String getUserName() {
return userName;
}

public void setUserName(String userName) {
this.userName = userName;
}

public String getBirthday() {
return birthday;
}

public void setBirthday(String birthday) {
this.birthday = birthday;
}

public String getSex() {
return sex;
}

public void setSex(String sex) {
this.sex = sex;
}

public String getAddress() {
return address;
}

public void setAddress(String address) {
this.address = address;
}

@Override
public String toString() {
return "User{" +
"id=" + id +
", userName='" + userName + '\'' +
", birthday='" + birthday + '\'' +
", sex='" + sex + '\'' +
", address='" + address + '\'' +
'}';
}
}

2.6 实体类, UserRepository

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package com.wuhao.repository;

import com.wuhao.domain.User;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;

import java.util.List;

public interface UserRepository extends ElasticsearchRepository<User, Long> {

public List<User> findByUserNameLike(String userName);
}

2.7 操作es的接口类, UserRepository

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