JPARepository findAll() 循环数据

Question

我有 3 个实体：

SLUSER_INFO(SLUSER_INFO_ID, FULLNAME, FIRSTNAME, LASTNAME, ADDRESS, DOB)
SLUSER(SLUSER_ID, PASSWORD, USERNAME, SLUSER_INFO_ID)
SLROLE(SLROLE_ID, ROLENAME, SLUSER_ID)

在用户实体中：

 @OneToMany(mappedBy = "user", cascade = CascadeType.ALL, orphanRemoval = true)
 @JsonView(SlUserView.Full.class)
 private List<SlRole> roles;

 @OneToOne(cascade = CascadeType.ALL)
 @JoinColumn(name = "SLUSER_INFO_ID", referencedColumnName = "SLUSER_INFO_ID")
 @JsonView(SlUserView.Full.class)
 private SlUserInfo  userInfo;

在角色实体中：

@ManyToOne
@JoinColumn(name = "SLUSER_ID", referencedColumnName = "SLUSER_ID")
private SlUser user;

和User_info实体

@OneToOne(mappedBy = "userInfo")
private SlUser user;

我创建其余 api 以使用 JPARepository findAll

获取所有用户

@Repository
public interface SlUserRepository extends JpaRepository<SlUser, Long> {

}

控制器

  public ResponseEntity<Page<SlUser>> findAll(Pageable pageable) {
        Page<SlUser> pageResult = usersRepository.findAll(pageable);
        return new ResponseEntity<Page<SlUser>>(pageResult, HttpStatus.OK);
      }

尝试运行其余api，结果是重复数据

{"content":[{"id":1,"username":"v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"", "firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user": {"id":1,"username":"v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"}], "userInfo":{"id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password" :"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id": 1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password":"admin","roles": [{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username": "v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1" ,"dob":null,"user":{"id":1,"username":"v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":" ","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password":"admin","roles":[{"id":1 ,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"","firstName":"Jayce" ,"lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"} ],"userInfo":{"id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar", "address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"", "firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user": {"id":1,"username":"v7001","password":"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001" ,"password":"admin","roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{ "id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password":"admin", "roles":[{"id":1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName" :"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":{"id":1,"username":"v7001","password":"admin","roles":[{"id" :1,"roleName":"ADMIN"}],"userInfo":{"id":1,"fullName":"","firstName":"Jayce","lastName":"Sonar","address":"ad1","dob":null,"user":

请多多指教

Answer 1

错误是因为 User 和 Roles 之间的双向关系。

在 User 实体的 roles 上使用 @JsonIgnore。

JPARepository findAll() 循环数据

JPARepository findAll() loop data

spring

jpql

spring-data-jpa

spring-boot