我有一个与角色实体有多对多关系的用户实体。
@Entity
@Table(name = "auth_user")
public class OAuthUser {
// @Autowired
// @Transient
// private PasswordEncoder passwordEncoder;
//
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
@Column(name = "username")
private String userName;
@Column(name = "password")
@JsonIgnore
private String password;
@Column(name = "first_name")
private String firstName;
@Column(name = "last_name")
private String lastName;
@Column(name = "email")
private String email;
@Column(name = "is_enabled")
private boolean isEnabled;
/**
* Reference:
* https://github.com/nydiarra/springboot-jwt/blob/master/src/main/java/com/nouhoun/springboot/jwt/integration/domain/User.java
* Roles are being eagerly loaded here because they are a fairly small
* collection of items for this example.
*/
@ManyToMany(fetch = FetchType.EAGER)
@Fetch(value = FetchMode.SUBSELECT)
@JoinTable(name = "user_role", joinColumns = @JoinColumn(name = "user_id", referencedColumnName = "id"), inverseJoinColumns = @JoinColumn(name = "role_id", referencedColumnName = "id"))
private List<Role> roles;
@ManyToMany(fetch = FetchType.EAGER)
@Fetch(value = FetchMode.SUBSELECT)
@JoinTable(name = "user_properties", joinColumns = @JoinColumn(name = "AuthID", referencedColumnName = "id"), inverseJoinColumns = @JoinColumn(name = "PropertyID", referencedColumnName = "id"))
private List<Property> properties;
我正在使用Spring Data JPA存储库,并且能够创建一个自定义@Query
,它根据特定的角色ID返回用户列表。
@Query("SELECT u FROM auth_user as u WHERE u.isEnabled AND u.id IN"
+ " (SELECT r.user_id FROM user_role as r WHERE r.role_id = ?1)")
public List<OAuthUser> findByRole(int roleID);
上面的代码会导致错误auth_user is not mapped
。我明白为什么我得到错误;框架使用实体名称(OAuthUser)而不是表(auth_user)来执行查询。这通常不是问题,除了user_role
没有实体;它只是一个包含两列的联接表:&#39; user_id&#39;和&#39; role_id&#39;。
实现这一目标的适当方法是什么?
感谢。
答案 0 :(得分:1)
错误说:
未映射auth_user
它指的是查询中使用的auth_user
,如SELECT u FROM auth_user
。在查询中,它必须是OAuthUser
。
答案 1 :(得分:1)
您正在使用jpql @Query中的表名(auth_user)。您应该使用班级名称 OAuthUser :
ABS
如果要使用SQL而不是jpql,则需要使用如下:
SELECT DATEDIFF(DAY,'20180522','20180520'), --returns -2
ABS(DATEDIFF(DAY,'20180522','20180520')); --returns 2
这样你可以提到表名和列。