hibernate系列之四

//一个客户对应多个联系人
	private Set<LinkMan> linkMans = new HashSet<LinkMan>();
public Set<LinkMan> getLinkMans() {
		return linkMans;
	}
	public void setLinkMans(Set<LinkMan> linkMans) {
		this.linkMans = linkMans;
	}

package com.itwx.hibernate.pojo;

public class LinkMan {

	private Long lkm_id;
	private String lkm_name;
	private String lkm_gender;
	private String lkm_phone;
	private String lkm_mobile;
	private String lkm_email;
	private String lkm_qq;
	private String lkm_position;
	private String lkm_memo;
	
	private Customer customer;

	public Long getLkm_id() {
		return lkm_id;
	}

	public void setLkm_id(Long lkm_id) {
		this.lkm_id = lkm_id;
	}

	public String getLkm_name() {
		return lkm_name;
	}

	public void setLkm_name(String lkm_name) {
		this.lkm_name = lkm_name;
	}

	public String getLkm_gender() {
		return lkm_gender;
	}

	public void setLkm_gender(String lkm_gender) {
		this.lkm_gender = lkm_gender;
	}

	public String getLkm_phone() {
		return lkm_phone;
	}

	public void setLkm_phone(String lkm_phone) {
		this.lkm_phone = lkm_phone;
	}

	public String getLkm_mobile() {
		return lkm_mobile;
	}

	public void setLkm_mobile(String lkm_mobile) {
		this.lkm_mobile = lkm_mobile;
	}

	public String getLkm_email() {
		return lkm_email;
	}

	public void setLkm_email(String lkm_email) {
		this.lkm_email = lkm_email;
	}

	public String getLkm_qq() {
		return lkm_qq;
	}

	public void setLkm_qq(String lkm_qq) {
		this.lkm_qq = lkm_qq;
	}

	public String getLkm_position() {
		return lkm_position;
	}

	public void setLkm_position(String lkm_position) {
		this.lkm_position = lkm_position;
	}

	public String getLkm_memo() {
		return lkm_memo;
	}

	public void setLkm_memo(String lkm_memo) {
		this.lkm_memo = lkm_memo;
	}

	public Customer getCustomer() {
		return customer;
	}

	public void setCustomer(Customer customer) {
		this.customer = customer;
	}
	
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC 
    "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
	<class name="com.itwx.hibernate.pojo.LinkMan" table="linkman">
		<id name="lkm_id" column="lkm_id">
			<generator class="native" />
		</id>
		<property name="lkm_name" column="lkm_name" />
		<property name="lkm_gender" column="lkm_gender" />
		<property name="lkm_phone" column="lkm_phone" />
		<property name="lkm_mobile" column="lkm_mobile" />
		<property name="lkm_email" column="lkm_email" />
		<property name="lkm_qq" column="lkm_qq" />
		<property name="lkm_position" column="lkm_position" />
		<!-- 配置关联对象 -->
		<!--  
			many-to-one:代表多对一：
				name属性：在实体类中的属性：一的一方的对象的名称；
				class属性：一的一方的类的全路径
				column：表中的外键，在一的一方中配置的外键；
		-->
		<many-to-one name="customer" class="com.itwx.hibernate.pojo.Customer"
			column="lkm_cust_id" />
	</class>
</hibernate-mapping>

<!-- 配置加载映射文件:全路径-->
			<mapping resource="com/itwx/hibernate/pojo/Customer.hbm.xml"/>
			<mapping resource="com/itwx/hibernate/pojo/LinkMan.hbm.xml"/>

<!-- 配置多一之间的映射关系 -->
    	<!-- 
    		set标签：name属性：在实体类中的属性，指多的一方的集合的属性名称
    		key标签：column:多的一方的外键的名称
    		one-to-many标签：class属性：多的一方的类的全路径
    	-->
		<set name="linkMans">
			<key column="lkm_cust_id" />
			<one-to-many class="com.itwx.hibernate.pojo.LinkMan"/>
		</set>

@Test
	public void test4() {
		// 获取当前与线程绑定的session
		Session session = HibernateUtils.getCurrentSession();
		// 开启事务
		Transaction transaction = session.beginTransaction();
		// 创建关系对象
		Customer customer = new Customer();// 此处可以使用带参构造方法
		customer.setCust_name("张三");
		customer.setCust_source("产品");

		LinkMan linkMan1 = new LinkMan();
		linkMan1.setLkm_name("周芷若");
		linkMan1.setLkm_phone("1223445");
		LinkMan linkMan2 = new LinkMan();
		linkMan2.setLkm_name("张无忌");
		linkMan2.setLkm_gender("男");
		// 建立关系
		/**
		 * 首先获取到set集合对象，然后才能进行添加元素； 所以先调用getXXX()方法获取对象，然后add
		 */
		// 客户关联联系人
		customer.getLinkMans().add(linkMan1);
		customer.getLinkMans().add(linkMan2);
		// 联系人关联客户
		linkMan1.setCustomer(customer);
		linkMan2.setCustomer(customer);
		// 执行操作
		session.save(linkMan1);
		session.save(linkMan2);
		session.save(customer);
		// 提交事务
		transaction.commit();
　　　　　　　　　　//执行结果
		/**
		 * Hibernate: insert into linkman (lkm_name, lkm_gender, lkm_phone,
		 * lkm_mobile, lkm_email, lkm_qq, lkm_position, lkm_cust_id) values (?,
		 * ?, ?, ?, ?, ?, ?, ?) Hibernate: insert into linkman (lkm_name,
		 * lkm_gender, lkm_phone, lkm_mobile, lkm_email, lkm_qq, lkm_position,
		 * lkm_cust_id) values (?, ?, ?, ?, ?, ?, ?, ?) Hibernate: insert into
		 * customer (cust_name, cust_source, cust_industry, cust_level,
		 * cust_phone, cust_mobile) values (?, ?, ?, ?, ?, ?) Hibernate: update
		 * linkman set lkm_name=?, lkm_gender=?, lkm_phone=?, lkm_mobile=?,
		 * lkm_email=?, lkm_qq=?, lkm_position=?, lkm_cust_id=? where lkm_id=?
		 * Hibernate: update linkman set lkm_name=?, lkm_gender=?, lkm_phone=?,
		 * lkm_mobile=?, lkm_email=?, lkm_qq=?, lkm_position=?, lkm_cust_id=?
		 * where lkm_id=? Hibernate: update linkman set lkm_cust_id=? where
		 * lkm_id=? Hibernate: update linkman set lkm_cust_id=? where lkm_id=?
		 */
	}

<many-to-one name="customer" class="com.itwx.hibernate.pojo.Customer"
			column="lkm_cust_id" cascade="save-update"  />

<set name="linkMans" cascade="delete,save-update" >
			<key column="lkm_cust_id" />
			<one-to-many class="com.itwx.hibernate.pojo.LinkMan"/>
		</set>

<set name="linkMans" cascade="delete,save-update" inverse="true">
            <key column="lkm_cust_id" />
            <one-to-many class="com.itwx.hibernate.pojo.LinkMan"/>
        </set>