小编Mar*_*all的帖子

我正在使用MVC模式我有两个表:Employee和Address

说,员工就像

-------------------
Id  | Name   | DeptId
-------------------
101 | Jake   | 501  
102 | Donald | 502

我有一个像这样的部门表

-----------------------------
DeptId | Name | Description
-----------------------------
501    | IT   | software assistance  
502    | HR   | Human resources

现在,因为我使用MVC,这些表被映射到类

@Table(name="Employee")
Class Employee{
   @Id
   @Column(name="Id")
   private Long id;

   @Column(name="Name")
   private String name;

   @Column(name="DeptId")
   private Long deptId;

   @ManyToOne
   @JoinColumn(name="DeptId", referencedColumnName="id", insertable=false,updatable=false)
   private Department dept;

   //getters and setters go here
}

和其他类部门(映射到部门表)

@Table(name="Department")
    Class Department{
       @Id
       @Column(name="Id")
       private Long id;

       @Column(name="Name")
       private …