弹性搜索在spring boot应用程序中不起作用

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

spring.data.elasticsearch.cluster-nodes=localhost:9200
spring.data.elasticsearch.cluster-name=my-cluster
spring.data.elasticsearch.username=my-username
spring.data.elasticsearch.password=my-password

@Document(indexName = "my-index", type = "my-type")
public class MyEntity {
    @Id
    private String id;
    private String field1;
    private String field2;
    // getters and setters
}

public interface MyEntityRepository extends ElasticsearchRepository<MyEntity, String> {
    List<MyEntity> findByField1(String field1);
}

@Autowired
private MyEntityRepository repository;

public void saveEntity(MyEntity entity) {
    repository.save(entity);
}

public List<MyEntity> searchByField1(String field1) {
    return repository.findByField1(field1);
}