ID生成策略：联合主键xml

在Student.java中，假设id和name作为它的主键

1、在com.bjsxt.hibernate下单独设计一个类，做为主键类【StudentPK】

package com.bjsxt.hibernate;

public class StudentPK implements java.io.Serializable {
private int id;
private String name;
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;
}
}

2、在Student.java中，建

private StudentPK pk;

public StudentPK getPk() {
return pk;
}
public void setPk(StudentPK pk) {
this.pk = pk;
}

3、在HibernateIDTest.java中：

@Test
public void testStudentSave() {
StudentPK pk=new StudentPK();
pk.setId(1);
pk.setName("zhangsan");

4、在Student.hbm.xml中：

<pre class="html" name="code"><composite-id name="pk" class="com.bjsxt.hibernate.StudentPK">
<key-property name="id"></key-property>
<key-property name="name"></key-property>
</composite-id>