Hibernate集合映射

以User类为例：

 在User类中定义一个List集合用于放email属性

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

@SuppressWarnings("serial")
public class User implements Serializable{
	
	private int id;
	private String username;
	private String password;
	private List emails = new ArrayList();
	
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public List getEmails() {
		return emails;
	}
	public void setEmails(List emails) {
		this.emails = emails;
	}
	
}

 

在User.hbm.xml中配置

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC 
	"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
	"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping 
	package="com.lbx.hibernate.model">
	
	<class name="User" table="user" lazy="true">
		
		<id name="id" type="int">
			<column name="id"  />
			<generator class="increment" />
		</id>
		
		<property name="username" type="java.lang.String" />
		<property name="password" type="java.lang.String" />
		
		<list name="emails" table="email">
			<key column="userid" foreign-key="id" />
			<list-index column="idx" />
			<element type="java.lang.String" column="email" />
		</list>
		
	</class>
	
</hibernate-mapping>

 

 

测试代码和hibernate.cfg.xml文件就没写了