老师(Teacher)知道自己教了哪些学生(Student)，学生(Student)也知道教自己的有哪些老师(Teacher)

　　Annotation 配置:

　　　　Teacher:　　　　　　

1 package com.bjsxt.hibernate; 2  3 import java.util.HashSet; 4 import java.util.Set; 5  6 import javax.persistence.Entity; 7 import javax.persistence.GeneratedValue; 8 import javax.persistence.Id; 9 import javax.persistence.JoinColumn;10 import javax.persistence.JoinTable;11 import javax.persistence.ManyToMany;12 import javax.persistence.Table;13 14 @Entity15 @Table(name="t_teacher")16 public class Teacher {17     18     private Integer id;19     20     private String name;21     22     private Set
     
       students = new HashSet
      
       ();23 24     @Id25     @GeneratedValue26     public Integer getId() {27         return id;28     }29 30     public void setId(Integer id) {31         this.id = id;32     }33 34     public String getName() {35         return name;36     }37 38     public void setName(String name) {39         this.name = name;40     }41 42     @ManyToMany43     @JoinTable(name="t_s",//中间表的表名44         joinColumns={@JoinColumn(name="teacher_id")},//配置主键在中间表的配置45         inverseJoinColumns={@JoinColumn(name="student_id")}//配置另一张多对多的表的主键在中间表的配置46     )47     public Set
       
         getStudents() {48         return students;49     }50 51     public void setStudents(Set
        
          students) {52         this.students = students;53     }54 55 }
        
       
      
     

　　　　　　Student:

1 package com.bjsxt.hibernate; 2  3 import java.util.HashSet; 4 import java.util.Set; 5  6 import javax.persistence.Entity; 7 import javax.persistence.GeneratedValue; 8 import javax.persistence.Id; 9 import javax.persistence.ManyToMany;10 import javax.persistence.Table;11 12 @Entity13 @Table(name="t_student")14 public class Student {15     private Integer id;16     17     private String name;18     19     private Set
     
       teachers = new HashSet
      
       ();20     21     @Id22     @GeneratedValue23     public Integer getId() {24         return id;25     }26 27     public void setId(Integer id) {28         this.id = id;29     }30 31     public String getName() {32         return name;33     }34 35     public void setName(String name) {36         this.name = name;37     }38 39     @ManyToMany(mappedBy="students")//以 Teacher 对应的表中，students属性的配置为准40     public Set
       
         getTeachers() {41         return teachers;42     }43 44     public void setTeachers(Set
        
          teachers) {45         this.teachers = teachers;46     }47 }
        
       
      
     

　　　　XML 配置：

　　　　　　Teacher.hbm.xml

1 
      2  5  6 
     
       7     
      
        8         
       
         9             
        10         
       11         
       12         
       
        13             
        
        14             
        
        15         
       16     
      17 
     

　　　　　　Student.hbm.xml

1 
      2  5  6 
     
       7     
      
        8         
       
         9             
        10         
       11         
       12         
       
        13             
        
        14             
        
        15         
       16     
      17 
     

 

jar包链接: 密码: 1mw3

代码链接: 密码: v3c8