SpringBoot集成ElasticSearch，实现增删改查_"@document(indexname = \"company\",type = \"employ

背景：阿里云服务器，搭建Docker，部署ElasticSearch镜像，本地SpringBoot链接ES，实现增删改查

安装Docker：https://blog.csdn.net/BinziD/article/details/111224764

Docker安装ElasticSearch：https://blog.csdn.net/BinziD/article/details/111314796

1. 配置文件（配置项不能错）

spring.data.elasticsearch.cluster-name=es-log    
spring.data.elasticsearch.cluster-nodes=39.99.48.28:9300
spring.data.elasticsearch.repositories.enabled=true

2. pom.xml文件

<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.62</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-elasticsearch -->
<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
	<version>2.0.2.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.8</version>
</dependency>

3. Entity

package org.big.entity;
 
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;
import org.springframework.data.elasticsearch.annotations.Field;
 
import lombok.Getter;
import lombok.Setter;
import lombok.ToString;
 
@Getter
@Setter
@ToString
@Document(indexName = "company",type = "employee", shards = 1,replicas = 0, refreshInterval = "-1")
public class Employee {
    @Id
    private String id;
    @Field
    private String firstName;
    @Field
    private String lastName;
    @Field
    private Integer age = 0;
    @Field
    private String about;
}

4. Controller层

package org.big.controller;
 
import org.big.entity.Employee;
import org.big.repository.EmployeeRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
 
import com.alibaba.fastjson.JSON;
 
@RestController
//@RequestMapping("es")
public class EmployeeController {
    @Autowired
    private EmployeeRepository employeeRepository;
 
    /**
     * 添加
     * @return
     */
    @RequestMapping("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.err.println(JSON.toJSONString(accountInfo));
        return accountInfo;
    }
}

5. Repository层

package org.big.repository;
 
import org.big.entity.Employee;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Component;
@Component
public interface EmployeeRepository extends ElasticsearchRepository<Employee, String> {
    /**
     * 通过Id查询Employee对象
     * @param id
     * @return
     */
    Employee queryEmployeeById(String id);
}

6.访问：http://localhost:8080/add

7. 问题:org.elasticsearch.client.transport.NoNodeAvailableException

解决：端口须指定为9300