struts2和hibernate整合的小Demo

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    <-- Struts的核心过滤器配置-->
    <filter>
        <filter-name>struts</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>struts</filter-name>
        <url-pattern>*.action</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>struts</filter-name>
        <url-pattern>*.jsp </url-pattern>
    </filter-mapping>
</web-app>

<?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="connection.driver_class">com.mysql.jdbc.Driver</property>
            <property name="connection.url">jdbc:mysql://localhost:3306/demo</property>
            <property name="connection.username">root</property>
            <property name="connection.password">123</property>
            <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

            <property name="show_sql">true</property>
            <property name="format_sql">true</property>
            <property name="hbm2ddl.auto">update</property>
            <property name="current_session_context_class">thread</property>
        </session-factory>
</hibernate-configuration>

package com.test.pojo;

/**
 * Created by Wdnnccey on 2016/10/24.
 */
public class User {
    private int uid;
    private String username;
    private String password;

    public User() {
    }

    public User(int uid, String username, String password) {
        this.uid = uid;
        this.username = username;
        this.password = password;
    }

    @Override
    public String toString() {
        return "User{" +
                "uid=" + uid +
                ", username=‘" + username + ‘\‘‘ +
                ", password=‘" + password + ‘\‘‘ +
                ‘}‘;
    }

    public int getUid() {
        return uid;
    }

    public void setUid(int uid) {
        this.uid = uid;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

<?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.test.pojo.User" table="user">
        <id name="uid" column="uid">
            <generator class="native"/>
        </id>
        <property name="username" column="username"  type="java.lang.String" length="20" />
        <property name="password" column="password"  type="java.lang.String" length="20"/>
 
    </class>
</hibernate-mapping>

package com.test.utils;

import org.hibernate.Hibernate;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;

/**
 * Created by Wdnnccey on 2016/10/24.
 */
public class HibernateUtils {

    private static SessionFactory sessionFactory;

    //保证单例模式
    private HibernateUtils(){

    }

    //公有的静态方法
    public static SessionFactory getSessionFactory(){

        if(sessionFactory ==null){
            Configuration configuration =new Configuration().configure();
            ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry();
            sessionFactory = configuration.buildSessionFactory(serviceRegistry);
            return sessionFactory;
        }else {
            return sessionFactory;
        }
    }

}

package com.test;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.metamodel.relational.Schema;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;
import org.hibernate.tool.hbm2ddl.SchemaExport;
import org.junit.Test;

/**
 * Created by Wdnnccey on 2016/10/24.
 */
public class TestDemo {

    @Test
    public void TestAll(){
        Configuration configuration = new Configuration().configure();
        ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry();
        SessionFactory sessionFactory =configuration.buildSessionFactory(serviceRegistry);
        Session session = sessionFactory.getCurrentSession();
        Transaction transaction = session.beginTransaction();
        SchemaExport export =new SchemaExport(configuration);
        export.create(true,true);
    }
}

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>登陆页面</title>
</head>
<body>
        <form action="" method="post">
                username：<input type="text" name="username"/><br>
                password:<input type="password" name="password"/><br>
            <input type="submit" value="tijiao"/>
        </form>
</body>
</html>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
你失败了。
</body>
</html>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
你成功了。
</body>
</html>