pojo 类
//部门表
@Repository
public class Department {
private Integer id;
private String departmentName;
//员工表
public class Employee {
private Integer id;
private String name;
private String email;
private Integer gender;//0 女 1男
private Department department;
private Date birth;
员工表中有个属性为Department ，员工表中department列该如何设计
整合Mybatis 时 EmployeeMapper.xml department 属性与 数据库对应列关系hai能自动关联么
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