elasticsearch学习与实用

学习springboot整合ElasticSearch 7.X版本并通过小demo实现基本的增删改查

引入依赖

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

修改配置文件

spring:
  application:
    rest:
      uris: http://xx.XX.XX.XX:9200/

新增一些实体类、to类

//实体类
@Data
@EqualsAndHashCode(callSuper = false)
@TableName("t_user")
public class TUser implements Serializable {

    private static final long serialVersionUID = 1L;

    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;

    private LocalDate birthday;

    private String gender;

    private String username;

    private String password;

    private String remark;

    private String station;

    private String telephone;
    
}

//es实体类
@Data
@Document(indexName = "user_info")
public class UserInfoTO {
    @Id
    private Integer id;

    private LocalDate birthday;

    private String gender;

    private String username;

    private String password;

    private String remark;

    private String station;

    private String telephone;
}

实用es新增用户

// 1.创建一个 elasticsearch 持久层接口，类似MP,内置了 es 增删改查方法
@Repository
public interface ITUserEsSevice extends ElasticsearchRepository<UserInfoTO,Integer> {
}

// 2.定义swagger接口
@ApiOperation(value = "新增用户")
@PostMapping("/saveUser")
public void saveUser(@RequestBody TUser tUser){
    itUserService.saveUser(tUser);
}

// 3.实现新增接口
@Autowired
ITUserEsSevice itUserEsSevice;

@Override
public void saveUser(TUser tUser) {
    UserInfoTO userInfoTO = new UserInfoTO();
    BeanUtils.copyProperties(tUser,userInfoTO);
    //保存到Es上
    // itUserEsSevice.save(userInfoTO);
    itUserEsSevice.delete(userInfoTO);
}