Hibernate的配置

建立web project工程ShoppingHibernate,工程文件结构图如下所示：

1，将Hibernate的JAR包和MySQL数据库的驱动程序JAR包导入工程，具体包如下图所示：

2，建立数据库的配置文件如下：（连接的数据库schema为fcshopping，表为uservo）

<?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">

<hibernate-configuration>

<session-factory>
    <property name="dialect">
        org.hibernate.dialect.MySQLDialect
    </property>
    <property name="connection.url">
        jdbc:mysql://localhost:3306/fcshopping
    </property>
    <property name="connection.username">root</property>
    <property name="connection.password">lpshou</property>
    <property name="connection.driver_class">
        com.mysql.jdbc.Driver
    </property>
    <property name="show_sql">true</property>
    <mapping resource="domain/UserVo.hbm.xml" />


</session-factory>

</hibernate-configuration>

3，建立用户信息持久化类domain.UserVo.java,具体代码如下：

package domain;
// default package

@SuppressWarnings("serial")
public class UserVo  implements java.io.Serializable {
   

     private Integer userId;
     private String userName;
     private String password;


    // Constructors

    /** default constructor */
    public UserVo() {
    }

    
    /** full constructor */
    public UserVo(String userName, String password) {
        this.userName = userName;
        this.password = password;
    }

   
    // Property accessors

    public Integer getUserId() {
        return this.userId;
    }
    
    public void setUserId(Integer userId) {
        this.userId = userId;
    }

    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;
    }

}

4，建立持久化类对应的映射文件，代码如下：

<?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="domain.UserVo" table="uservo" catalog="fcshopping">
        <id name="userId" type="java.lang.Integer">
            <column name="userID" />
            <generator class="native"></generator>
        </id>
        <property name="userName" type="java.lang.String">
            <column name="userName" length="20" not-null="true" />
        </property>
        <property name="password" type="java.lang.String">
            <column name="password" length="20" not-null="true" />
        </property>
    </class>
</hibernate-mapping>

5，建立商品信息管理的测试类：

package action;

import java.util.ArrayList;
import java.util.List;

import org.hibernate.HibernateException;
import org.hibernate.MappingException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

import domain.UserVo;

public class AddProduct {
    
    public static SessionFactory sessionFactory;
    static{
        try{
            Configuration config=new Configuration().configure();
            //config.addClass(UserVo.class);
            sessionFactory=config.buildSessionFactory();
        }catch(MappingException e){
            e.printStackTrace();
        }catch(HibernateException e){
            e.printStackTrace();
        }
    }
    
    public void save(){
        Session session=sessionFactory.openSession();
        Transaction tx=null;
        try{
            tx=session.beginTransaction();
            tx.begin();
            UserVo userVo=new UserVo();
            userVo.setUserName("test");
            userVo.setPassword("123");
            session.save(userVo);
            tx.commit();
            
        }catch(Exception e){
            tx.rollback();
            e.printStackTrace();
        }finally{
            session.close();
        }
        
    }
    
    @SuppressWarnings("unchecked")
    public void findAll(){
        List list=new ArrayList();
        Session session=sessionFactory.openSession();
        Transaction tx=null;
        try{
            tx=session.beginTransaction();
            tx.begin();
            String sql="from UserVo";
            Query query=session.createQuery(sql);
            list=query.list();
            tx.commit();
        }catch(HibernateException e){
            e.printStackTrace();
            
        }
        System.out.println("编号    姓名    密码    ");
        System.out.println("---------------------------------");
        for(int i=0;i<list.size();i++){
            UserVo userVo=(UserVo)list.get(i );
            System.out.print("  "+userVo.getUserId()+"    ");
            System.out.print(userVo.getUserName()+"    ");
            System.out.println(userVo.getPassword()+"    ");
        }
    }
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        AddProduct ap=new AddProduct();
        ap.save();
        ap.findAll();

    }

}

6，执行java程序，结果如下图：

内容参考：javaEE框架技术进阶式教程，赵彦