配置文件hibernate.cfg.xml：

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><!-- Generated by MyEclipse Hibernate Tools.                   -->
<hibernate-configuration><session-factory><property name="dialect">org.hibernate.dialect.MySQLDialect</property><property name="connection.url">jdbc:mysql://localhost:3306/hubin</property><property name="connection.username">root</property><property name="connection.password"></property><property name="connection.driver_class">com.mysql.jdbc.Driver</property><property name="myeclipse.connection.profile">mysql</property><property name="show_sql">true</property><property name="format_sql">true</property><mapping resource="com/hubin/entity/Users.hbm.xml" /><mapping resource="com/hubin/entity/Userinf.hbm.xml" /></session-factory></hibernate-configuration>

关系对象模型文件主表文件Users.hbm.xml：

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping><class name="com.hubin.entity.Users" table="users" catalog="hubin"><id name="id" type="java.lang.Long"><column name="id" /><generator class="increment" /></id><property name="username" type="java.lang.String"><column name="username" /></property><property name="password" type="java.lang.String"><column name="password" /></property><property name="email" type="java.lang.String"><column name="email" /></property><set name="userinfs" inverse="true" cascade="delete"><key><column name="userID" not-null="true" /></key><one-to-many class="com.hubin.entity.Userinf" /></set></class>
</hibernate-mapping>

关系对象模型副表文件Userinf.hbm.xml：

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping><class name="com.hubin.entity.Userinf" table="userinf" catalog="hubin"><id name="id" type="java.lang.Integer"><column name="id" /><generator class="increment" /></id><many-to-one name="users" class="com.hubin.entity.Users" fetch="select"><column name="userID" not-null="true" /></many-to-one><property name="arm" type="java.lang.String"><column name="arm" length="30" /></property></class>
</hibernate-mapping>

Java代码：

实体类Users.java:

package com.hubin.entity;import java.util.HashSet;
import java.util.Set;/*** Users entity. @author MyEclipse Persistence Tools*/public class Users implements java.io.Serializable {// Fieldsprivate Long id;private String username;private String password;private String email;private Set userinfs = new HashSet(0);// Constructors/** default constructor */public Users() {}/** full constructor */public Users(String username, String password, String email, Set userinfs) {this.username = username;this.password = password;this.email = email;this.userinfs = userinfs;}// Property accessorspublic Long getId() {return this.id;}public void setId(Long id) {this.id = id;}public String getUsername() {return this.username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return this.password;}public void setPassword(String password) {this.password = password;}public String getEmail() {return this.email;}public void setEmail(String email) {this.email = email;}public Set getUserinfs() {return this.userinfs;}public void setUserinfs(Set userinfs) {this.userinfs = userinfs;}}

实体类Userinf.java:

package com.hubin.entity;/*** Userinf entity. @author MyEclipse Persistence Tools*/public class Userinf implements java.io.Serializable {// Fieldsprivate Integer id;private Users users;private String arm;// Constructors/** default constructor */public Userinf() {}/** minimal constructor */public Userinf(Users users) {this.users = users;}/** full constructor */public Userinf(Users users, String arm) {this.users = users;this.arm = arm;}// Property accessorspublic Integer getId() {return this.id;}public void setId(Integer id) {this.id = id;}public Users getUsers() {return this.users;}public void setUsers(Users users) {this.users = users;}public String getArm() {return this.arm;}public void setArm(String arm) {this.arm = arm;}}

dao层代码：

import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;import org.hibernate.Session;import com.hubin.entity.Userinf;
import com.hubin.entity.Users;
import com.hubin.sessionfactory.HibernateSessionFactory;public class UsersDao {/*** 获取用户信息表所有数据* */public static void getUserInfo(){Session session=HibernateSessionFactory.getSession();session.beginTransaction();List<Userinf> list=session.createQuery("from Userinf").list();System.out.println("集合的数目"+list.size());for(Userinf uf:list){System.out.println(uf.getUsers().getUsername()+" "+uf.getArm());}session.getTransaction().commit();session.close();}/*** 获取用户表所有数据信息*/public static void getUsers(){Session session=HibernateSessionFactory.getSession();session.beginTransaction();List<Users> list=session.createQuery("from Users").list();for(Users us:list){System.out.println(us.getUsername());Set<Userinf> set=us.getUserinfs();for(Userinf uf:set){System.out.print(uf.getUsers().getEmail()+"    ");}System.out.println("");}System.out.println("************************************************");Iterator<Users> it=list.iterator();while(it.hasNext()){System.out.println(it.next().getUsername());}session.getTransaction().commit();session.close();}/*** 获取用户部分信息*/public static void getUsersUsernameAndPassword(){Session session=HibernateSessionFactory.getSession();session.beginTransaction();//此时不能通过用户表对象泛型进行接收，只能通过集合对象进行接收List list=session.createQuery("select username,password from Users").list();for(int i=0;i<list.size();i++){//此时取出来的是一个对象数组Object obj[]=(Object[])list.get(i);System.out.println(obj[0].toString()+"  "+obj[1].toString());System.out.println("");}session.getTransaction().commit();session.close();}public static void main(String args[]){
//调用方法getUsersUsernameAndPassword();}
}