SpringBoot 集成Elasticsearch进行简单增删改查

一、引入的pom文件

<?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>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>elasticsearch</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>elasticsearch</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <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>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>4.3.13.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-test</artifactId>
        </dependency>
        <!--<dependency>-->
            <!--<groupId>com.google.code.gson</groupId>-->
            <!--<artifactId>gson</artifactId>-->
            <!--<version>2.4</version>-->
        <!--</dependency>-->
    </dependencies>

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

</project>

二、编辑配置文件：application.properties

#Elasticsearch
# elasticsearch集群名称，默认的是elasticsearch
spring.data.elasticsearch.cluster-name=elasticsearch1
spring.data.elasticsearch.cluster-nodes=192.168.200.100:9300
spring.data.elasticsearch.properties.transport.tcp.connect_timeout=120s
#是否开启本地存储
#spring.data.elasticsearch.repositories.enable=true

三、索引对应的实体类

package com.example.elasticsearch.entity;

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

/**
 * @Author:
 * @Date: 2019/5/10
 */

@Document(indexName = "company",type = "employee",indexStoreType = "fs",shards = 5,replicas = 1,refreshInterval = "-1")
public class Employee {
    @Id
    private String id;

    private String firstName;
    private String lastName;
    private Integer age=0;
    private String about;

    public String getId() {
        return id;
    }

    public Employee setId(String id) {
        this.id = id;
        return this;
    }

    public String getFirstName() {
        return firstName;
    }

    public Employee setFirstName(String firstName) {
        this.firstName = firstName;
        return this;
    }

    public String getLastName() {
        return lastName;
    }

    public Employee setLastName(String lastName) {
        this.lastName = lastName;
        return this;
    }

    public Integer getAge() {
        return age;
    }

    public Employee setAge(Integer age) {
        this.age = age;
        return this;
    }

    public String getAbout() {
        return about;
    }

    public Employee setAbout(String about) {
        this.about = about;
        return this;
    }

    public Employee() {
    }

    @Override
    public String toString() {
        return "Employee{" +
                "id='" + id + '\'' +
                ", firstName='" + firstName + '\'' +
                ", lastName='" + lastName + '\'' +
                ", age=" + age +
                ", about='" + about + '\'' +
                '}';
    }
}

四、对应的接口

package com.example.elasticsearch;

import com.example.elasticsearch.entity.Employee;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;

/**
 * @Author:
 * @Date: 2019/5/10
 */
public interface EmployeeRepository extends ElasticsearchRepository<Employee,String> {
    /**
     * 查询雇员信息
     * @param id
     * @return
     */
    Employee queryEmployeeById(String id);
}

五、操作类

package com.example.elasticsearch;

import com.example.elasticsearch.entity.Employee;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @Author:
 * @Date: 2019/5/10
 */
@RestController
@RequestMapping(value = "/find")

public class EmployeeController {
    @Autowired
    private EmployeeRepository employeeRepository;
    /**
     * 向Es插入一条数据
     * @return
     */
    @RequestMapping(value = "/add")
    public String add() {
        Employee employee = new Employee();
        employee.setId("1");
        employee.setFirstName("xuxu");
        employee.setLastName("zh");
        employee.setAge(26);
        employee.setAbout("i am in peking");
        employeeRepository.save(employee);
        System.err.println("add a obj");
        return "success";
    }

/**
     * 删除
     * @return
     */
    @RequestMapping("delete")
    public String delete() {
        Employee employee = employeeRepository.queryEmployeeById("1");
        employeeRepository.delete(employee);
        return "success";
    }

    /**
     * 局部更新
     * @return
     */
    @RequestMapping("update")
    public String update() {
        Employee employee = employeeRepository.queryEmployeeById("1");
        employee.setFirstName("哈哈");
        employeeRepository.save(employee);
        System.err.println("update a obj");
        return "success";
    }

/**
     * 查询
     * @return
     */
    @RequestMapping("query")
    public Employee query() {
        Employee accountInfo = employeeRepository.queryEmployeeById("1");
        System.out.println("accountInfo = " + accountInfo.toString());
//        System.err.println(new Gson().toJson(accountInfo));
        return accountInfo;
    }
}

六、启动类

package com.example.elasticsearch;

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

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
public class ElasticsearchApplication {

    public static void main(String[] args) {
        SpringApplication.run(ElasticsearchApplication.class, args);
    }

}