用于根据外键过滤 table 的 NamedQuery
NamedQuery for filtering a table based on its foreign key
我有下面两个表
@Entity
@Table(name = "userRequests")
@NamedQueries({
@NamedQuery(
name = "User.getByFK",
query = "SELECT u FROM User u WHERE u.FK_ID =:FK_ID")
})
public class UserR implements Comparable<User>, Serializable {
@Id
@JsonProperty
@GeneratedValue(strategy = GenerationType.IDENTITY)
long id;
@JsonProperty
@OneToOne(cascade= CascadeType.ALL)
@JoinColumn(name="FK_ID")
FK fk;
}
这给我一个错误"could not resolve property: FK_ID"
如何使该字段可访问?
在用户对象中创建 FK_ID 文件时出现重复映射异常
您收到该错误是因为用户 class 中没有字段名称 FK_ID
您将需要使用连接 fk
获取文件
试试这样用
@NamedQueries({
@NamedQuery(
name = "User.getByFK",
query = "SELECT u FROM User u WHERE u.fk.FK_ID =:FK_ID")
})
我有下面两个表
@Entity
@Table(name = "userRequests")
@NamedQueries({
@NamedQuery(
name = "User.getByFK",
query = "SELECT u FROM User u WHERE u.FK_ID =:FK_ID")
})
public class UserR implements Comparable<User>, Serializable {
@Id
@JsonProperty
@GeneratedValue(strategy = GenerationType.IDENTITY)
long id;
@JsonProperty
@OneToOne(cascade= CascadeType.ALL)
@JoinColumn(name="FK_ID")
FK fk;
}
这给我一个错误"could not resolve property: FK_ID"
如何使该字段可访问?
在用户对象中创建 FK_ID 文件时出现重复映射异常
您收到该错误是因为用户 class 中没有字段名称 FK_ID 您将需要使用连接 fk
获取文件试试这样用
@NamedQueries({
@NamedQuery(
name = "User.getByFK",
query = "SELECT u FROM User u WHERE u.fk.FK_ID =:FK_ID")
})