小编Dan*_*lli的帖子

我试图在Spring Rest Controller中使用PUT请求方法部分更新实体时,区分空值和未提供的值.

以下面的实体为例:

@Entity
private class Person {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    /* let's assume the following attributes may be null */
    private String firstName;
    private String lastName;

    /* getters and setters ... */
}

我的人员库(Spring Data):

@Repository
public interface PersonRepository extends CrudRepository<Person, Long> {
}

我使用的DTO:

private class PersonDTO {
    private String firstName;
    private String lastName;

    /* getters and setters ... */
}

我的Spring RestController:

@RestController
@RequestMapping("/api/people")
public class PersonController {

    @Autowired
    private PersonRepository people; …