Hibernate Annotation 中多对多的配置

Student.java

@Entity
@Table(name="t_student")
@Cache(usage=CacheConcurrencyStrategy.READ_WRITE)
public class Student {
	
	private int id;
	private String name;
	private Set<Teacher> teacherSet;
	
	@Id
	@GeneratedValue(strategy=GenerationType.IDENTITY)
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	
	@ManyToMany
	@JoinTable(
			name="t_student_teacher",
			joinColumns={@JoinColumn(name="studentid")},
			inverseJoinColumns={@JoinColumn(name="teacherid")}
	)
	public Set<Teacher> getTeacherSet() {
		return teacherSet;
	}
	public void setTeacherSet(Set<Teacher> teacherSet) {
		this.teacherSet = teacherSet;
	}
	
}

Teacher.java

@Entity
@Table(name="t_teacher")
@Cache(usage=CacheConcurrencyStrategy.READ_WRITE)
public class Teacher {

	private int id;
	private String name;
	
	private List<Student> studentSet;

	@Id
	@GeneratedValue(strategy=GenerationType.IDENTITY)
	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
	@ManyToMany(mappedBy="teacherSet")
	public List<Student> getStudentSet() {
		return studentSet;
	}

	public void setStudentSet(List<Student> studentSet) {
		this.studentSet = studentSet;
	}
	
}