Hibernate框架双向一对多配置，以及级联操作

一对多：

一的一方java文件

package bean;

import java.util.HashSet;
import java.util.Set;

public class Custmoer {
	private Long cust_id; // '客户编号(主键)',
	private String cust_name;//'客户名称(公司名称)',
	private String cust_source;// '客户信息来源',
	private String cust_industry;// '客户所属行业',
	private String cust_level;//'客户级别',
	private String cust_phone;//'固定电话',
	private String cust_mobile;//'移动电话',
	//外键
	private Set<Linkman> linkmans=new HashSet<Linkman>();
	
	public Long getCust_id() {
		return cust_id;
	}
	public void setCust_id(Long cust_id) {
		this.cust_id = cust_id;
	}
	public String getCust_name() {
		return cust_name;
	}
	public void setCust_name(String cust_name) {
		this.cust_name = cust_name;
	}
	public String getCust_source() {
		return cust_source;
	}
	public void setCust_source(String cust_source) {
		this.cust_source = cust_source;
	}
	public String getCust_industry() {
		return cust_industry;
	}
	public void setCust_industry(String cust_industry) {
		this.cust_industry = cust_industry;
	}
	public String getCust_level() {
		return cust_level;
	}
	public void setCust_level(String cust_level) {
		this.cust_level = cust_level;
	}
	public String getCust_phone() {
		return cust_phone;
	}
	public void setCust_phone(String cust_phone) {
		this.cust_phone = cust_phone;
	}
	public String getCust_mobile() {
		return cust_mobile;
	}
	public void setCust_mobile(String cust_mobile) {
		this.cust_mobile = cust_mobile;
	}
	public Set<Linkman> getLinkmans() {
		return linkmans;
	}
	public void setLinkmans(Set<Linkman> linkmans) {
		this.linkmans = linkmans;
	}
	
}

一的一方xml文件

<?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="bean.Custmoer" table="cus_customer">
   		<id name="cust_id" column="cust_id">
   			<generator class="native"></generator>
   		</id>
	<property name="cust_name" column="cust_name"></property>
	<property name="cust_source" column="cust_source"></property>
	<property name="cust_industry" column="cust_industry"></property>
	<property name="cust_level" column="cust_level"></property>
	<property name="cust_phone" column="cust_phone"></property>
	<property name="cust_mobile" column="cust_mobile"></property>
	<!-- 配置一对多的关系   集合(linkmans)-->
				<!-- 
						name:集合的名字
						inverse:true 指定放弃外键的维护权
						cascade: save-update 级联保存
								  delete:级联删除
								  
						lazy: true 默认值 默认使用延迟加载
							  false 不使用延迟加载 立即加载
				 -->
	<set name="linkmans" inverse="true" cascade="save-update,delete">
		<key column="wj_id"></key>
		<one-to-many class="bean.Linkman"/>
	</set>
   	</class>
   </hibernate-mapping>

多的一方java文件

package bean;

public class Linkman {
	private Long lkm_id;//'联系人编号(主键)',
	private String lkm_name;//'联系人姓名',
	private String lkm_gender;// '联系人性别',
	private String lkm_phone;// '联系人办公电话',
	private String lkm_mobile;// '联系人手机',
	private String lkm_email;// '联系人邮箱',
	private String lkm_position;// '联系人职位',
	private String lkm_memo;// '联系人备注', 
	//外键
	private Custmoer custmoer;
	
	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_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 Custmoer getCustmoer() {
		return custmoer;
	}
	public void setCustmoer(Custmoer custmoer) {
		this.custmoer = custmoer;
	}

	
}

多的一方xml文件

<?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="bean.Linkman" table="cst_linkman">
				<id name="lkm_id" column="lkm_id">
					<generator class="native"></generator>
				</id>
				
				<property name="lkm_name" column="lkm_name"></property>
				<property name="lkm_gender" column="lkm_gender"></property>
				<property name="lkm_phone" column="lkm_phone"></property>
				<property name="lkm_mobile" column="lkm_mobile"></property>
				<property name="lkm_email" column="lkm_email"></property>
				<property name="lkm_position" column="lkm_position"></property>
				<property name="lkm_memo" column="lkm_memo"></property>
				
				
				<!-- 配置一对多的关系  对象(customer) -->
				<!-- 
					 name:在自己里面一的一方对象的属性名
					 class: 一的一方的全限定名
					 column: 指定外键字段名
				 -->
		<many-to-one name="custmoer" class="bean.Custmoer" column="wj_id"></many-to-one>
			</class>
</hibernate-mapping>

级联操作

	//级联删除数据
	private static void deleteJilian() {
		Session session = HibernateUtils.openSession();
		Transaction tr =session.beginTransaction();
		Custmoer custmoer =session.get(Custmoer.class,1L);
		session.delete(custmoer);
		tr.commit();
		session.close();
		
	}
	//级联保存数据
    //<set name="linkmans"  cascade="save-update,delete">
	private static void savaJilian() {
		Session session = HibernateUtils.openSession();
		Transaction tr =session.beginTransaction();
		Custmoer custmoer = new Custmoer();
		custmoer.setCust_name("老马");
		Linkman linkman = new Linkman();
		linkman.setLkm_name("小蜜");
		Linkman linkman2=new Linkman();
		linkman2.setLkm_name("中密");
		Linkman linkman3=new Linkman();
		linkman3.setLkm_name("大蜜");
		//让客户保存联系人
		custmoer.getLinkmans().add(linkman);
		custmoer.getLinkmans().add(linkman2);
		custmoer.getLinkmans().add(linkman3);
		//让联系人关联客户
		linkman.setCustmoer(custmoer);
		linkman2.setCustmoer(custmoer);
		linkman3.setCustmoer(custmoer);
		
        //保存客户
		//在xml中关联了linkman表
		//<set name="linkmans" cascade="save-update">
		
        session.save(custmoer);
		
		tr.commit();
		session.close();
	}