SpringBoot集成ElasticSearch并使用的两种方法

依赖：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.7.1</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

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

在java代码中使用的几种方法

1.使用JPA的方法使用ElasticSearch

1.首先创建对应的实体类

@Document(indexName = "user")
@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {


    private String id;
    private String username;
    private String department;
    private String sex;
    private Integer age;
    private String firstName;
    private String lastName;
}

2.创建实现的Repository去继承ElasticsearchRepository

public interface EsRepository extends ElasticsearchRepository<User,