問題：一個老師有多個家庭地址，如何存儲該老師的信息？

1.Address類：

package cn.siggy.pojo;public class Address {private String addr1;private String addr2;private String addr3;public String getAddr1() {return addr1;}public void setAddr1(String addr1) {this.addr1 = addr1;}public String getAddr2() {return addr2;}public void setAddr2(String addr2) {this.addr2 = addr2;}public String getAddr3() {return addr3;}public void setAddr3(String addr3) {this.addr3 = addr3;} }

　　

?2.Teacher類：

package cn.siggy.pojo;public class Teacher {private int id;private String name;private String sex;private Address address;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;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public Address getAddress() {return address;}public void setAddress(Address address) {this.address = address;} }

　　

3.Teacher.hbm.xml

<?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping package="cn.siggy.pojo"><class name="Teacher"><id name="id"><generator class="native"></generator></id><property name="name"/><property name="sex"/><!-- 組件 --><component name="address" class="Address"><property name="addr1"/><property name="addr2"/><property name="addr3"/></component></class> </hibernate-mapping>

　　

4.測試代碼：

package cn.siggy.test;import java.sql.SQLException;import javax.sql.rowset.serial.SerialException;import org.hibernate.HibernateException; import org.hibernate.Session; import org.hibernate.Transaction; import org.hibernate.cfg.Configuration; import org.hibernate.tool.hbm2ddl.SchemaExport; import org.junit.Test;import cn.siggy.pojo.Address; import cn.siggy.pojo.Teacher; import cn.siggy.util.HibernateUtil;public class HibernateTest {@Testpublic void testCreateDB(){Configuration cfg = new Configuration().configure();SchemaExport se = new SchemaExport(cfg);//第一個參數 是否生成ddl腳本 第二個參數 是否執行到數據庫中se.create(true, true);}@Testpublic void testSave() throws HibernateException, SerialException, SQLException{Session session = null;Transaction tx = null;try{session = HibernateUtil.getSession();tx = session.beginTransaction();Teacher t = new Teacher();t.setName("老裴");t.setSex("男");Address address = new Address();address.setAddr1("西三旗");address.setAddr2("西直門");address.setAddr3("南六環");t.setAddress(address);session.save(t);tx.commit();}catch (HibernateException e) {if(tx!=null)tx.rollback();e.printStackTrace();throw e;}finally{HibernateUtil.closeSession();}} }

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5.測試結果：

控制臺信息：

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數據庫表信息：

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轉載于:https://www.cnblogs.com/chxbar/p/6676449.html

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