Hibernate第一天

导入Hibernate框架

步骤：

 

 

 

 

 

 

 

 

 

 

小列子：
JAVA

package com.lovo.test;import com.lovo.dao.UserDAO;import com.lovo.po.UserPO;public class TestMain {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubUserPO user = new UserPO();user.setName("zbz");user.setPassword("frjjno3");UserDAO dao = new UserDAO();dao.deleteUser(user);}}

 

 

package com.lovo.po;public class UserPO {private int id;private String name;private String password;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 getPassword() {return password;}public void setPassword(String password) {this.password = password;}}

 

 

package com.lovo.dao;import org.hibernate.Session;import org.hibernate.Transaction;import com.lovo.db.HibernateSessionFactory;import com.lovo.po.UserPO;public class UserDAO {public void addUser(UserPO user){Session session = HibernateSessionFactory.getSession();Transaction transaction = session.beginTransaction();session.save(user);transaction.commit();session.close();}public void deleteUser(UserPO user){Session session = HibernateSessionFactory.getSession();Transaction transaction = session.beginTransaction();session.delete(user);transaction.commit();session.close();}}

 

 

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="connection.username">root</property><property name="connection.url">jdbc:mysql://localhost:3306/test</property><property name="dialect">org.hibernate.dialect.MySQLDialect</property>//使用的语言<property name="myeclipse.connection.profile">test64</property><property name="connection.driver_class">com.mysql.jdbc.Driver</property><property name="show_sql">true</property><mapping resource="com/lovo/po/UserPO.hbm.xml" />//映UserPO</session-factory></hibernate-configuration>

 UserPO.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" ><hibernate-mapping><class name="com.lovo.po.UserPO" table="t_user">//这个bean对应的表<id name="id" column="f_id" type="int"><generator class="increment"></generator>//主键采用什么方式递增</id>//id必须有，一个bean里面必须有一个对应数据库表里的ID<property name="name" column="f_name" type="java.lang.String"></property>//bean里面对应表里面的列类型是什么<property name="password" column="f_password" type="java.lang.String"></property></class></hibernate-mapping>