XML/HTML代碼

1. < class name = "Person" table = "t_person" >
2. < id name = "id" >
3. < generator class = "native" >
5. < property name = "name" >
7. 表達的是本類與IdCard的一對一。
8. 采用基于外鍵的一對一映射方式，本方無外鍵方。
9. property-ref屬性：
10. 寫的是對方映射中外鍵列對應的屬性名。
11. -- >
12. < one-to-one name = "idCard" class = "IdCard" property-ref = "person" >

XML/HTML代碼

1. < class name = "IdCard" table = "t_idcard" >
2. < id name = "id" >
3. < generator class = "native" >
5. < property name = "number" column = "id_number" >
7. 表達的是本類與Person的一對一。
8. 采用基于外鍵的一對一映射方式，本方有外鍵方。 -- >
9. < many-to-one name = "person" class = "Person" unique = "true" column = "person_id" >

一對多

XML/HTML代碼

1. < class name = "Department" table = "t_department" >
2. < id name = "id" >
3. < generator class = "native" >
5. < property name = "name" >
7. < set name = "employees" inverse = "true" >
8. < key column = "deptId" >
9. < one-to-many class = "Employee" />

XML/HTML代碼

1. < class name = "Employee" table = "t_employee" >
2. < id name = "id" >
3. < generator class = "native" >
5. < property name = "name" >
7. < many-to-one name = "department" class = "Department" column = "deptId" >

多對多

XML/HTML代碼

1. < class name = "Teacher" table = "t_teacher" >
2. < id name = "id" >
3. < generator class = "native" >
5. < property name = "name" >
6. < set name = "students" table = "t_student_teacher" >
7. < key column = "teacher_id" >
8. < many-to-many class = "Student" column = "student_id" >

XML/HTML代碼

1. < class name = "Student" table = "t_student" >
2. < id name = "id" >
3. < generator class = "native" >
5. < property name = "name" >
6. < set name = "teachers" table = "t_student_teacher" >
7. < key column = "student_id" >
8. < many-to-many class = "Teacher" column = "teacher_id" >

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