Struts2和hibernate3的简单应用-登录验证
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先附上整体的结构吧 
Struts版本是hibernate-distribution-3.6.10.Final
hibernate版本是struts-2.3.24.1-all
一首先是导入jar包 
这里要说明的是我使用Struts和hibernate的包貌似有冲突，所以把cg-lib.jar换成了cglib-nodep-2.13.jar.
二然后是Struts配置
web.xml:
<?xml version="1.0" encoding="UTF-8"?><web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <display-name></display-name> //第一个显示的页面 <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> //struts2的过滤器 //struts2可以为任何自定义字符串，单要和过滤映射器同名 <!-- 定义Filter --> <filter> <!-- Filter的名字 --> <filter-name>struts2</filter-name> <!-- Filter的实现类 --> <filter-class> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter </filter-class> </filter> //过滤映射器 <filter-mapping> <!-- Filter的名字 --> <filter-name>struts2</filter-name> <!-- Filter负责拦截的URL中*.action的请求,如果<url-pattern>/* </>,全部以/的请求--> <url-pattern>*.action</url-pattern> </filter-mapping></web-app>Struts.xml:
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"><struts> //包名:user,继承自struts-default;需要访问http://localhost:8080/ForTest/User/Login.action <package name="user" namespace="/User" extends="struts-default"> <action name="Login"> <result>/login.jsp</result> </action> //action name是**Welcome**,class是该action对应的类 <action name="Welcome" class="com.bit.edu.cn.WelcomeUserAction"> <result name="SUCCESS">/welcome_user.jsp</result> <result name="ERROR">/error.jsp</result> </action> </package></struts> WelcomeUserAction.java:
package com.bit.edu.cn;import java.util.List;import org.hibernate.Session;import org.hibernate.Transaction;import com.opensymphony.xwork2.ActionSupport;public class WelcomeUserAction extends ActionSupport{ private String username; private String password; public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } //Action Welcome会执行execute()方法 public String execute() {// WelcomeUserAction action = new WelcomeUserAction(); List<User> sList = queryResult(username, password); System.out.println(username+" "+password); if(sList.size()>0){ return "SUCCESS"; } return "ERROR"; } public List<User> queryResult(String name, String pass){ Session session = HibernateUtil.currentSession(); Transaction ts = session.beginTransaction(); List<User> result = session.createQuery("from User where username='"+name+"' and password="+pass).list(); return result; }}四个JSP页面
index.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> This is my JSP page. <br> //登录页面链接 <a href="http://localhost:8080/ForTest/User/Login.action">Login</a> <br> </body></html>login.jsp:
<%@ page contentType="text/html; charset=UTF-8"%>//导入Struts标签<%@ taglib prefix="s" uri="/struts-tags"%><html><head></head><body> <h1>Login Page</h1> //struts-form 标签 <s:form action="Welcome"> <s:textfield name="username" label="Username" /> <s:password name="password" label="Password" /> <s:submit /> </s:form></body></html>welcome_user.jsp：
<%@ page contentType="text/html; charset=UTF-8"%><%@ taglib prefix="s" uri="/struts-tags"%><html><head></head><body> <h1>Login Success Page</h1> <h2> Hello <s:property value="username" /> </h2></body></html>error.jsp：
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <base href="<%=basePath%>"> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> Error Page <br> </body></html>三hibernate配置
先把数据库贴上来吧：
数据库用的是MySQL，database的名字是hibernate。 
创建数据库：
/*Navicat MySQL Data TransferSource Host : localhost:3306Source Database : hibernateTarget Host : localhost:3306Target Database : hibernateDate: 2016-01-03 20:11:37*/SET FOREIGN_KEY_CHECKS=0;-- ------------------------------ Table structure for user-- ----------------------------DROP TABLE IF EXISTS `user`;CREATE TABLE `user` ( `id` int(11) NOT NULL AUTO_INCREMENT, `username` varchar(12) DEFAULT NULL, `password` varchar(12) DEFAULT NULL, PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;-- ------------------------------ Records of user-- ----------------------------INSERT INTO `user` VALUES ('1', 'heheda', '123');INSERT INTO `user` VALUES ('2', 'dacaibi', '1234');INSERT INTO `user` VALUES ('3', 'xyd', '1234');hibernate.cfg.xml(hibernate配置文件):
<?xml version='1.0' encoding='utf-8'?><!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><hibernate-configuration> <session-factory> <!-- Database connection settings --> <property name="connection.driver_class">com.mysql.jdbc.Driver</property> <property name="connection.url">jdbc:mysql://localhost/hibernate</property> <property name="connection.username">root</property> <property name="connection.password">2334145</property> <!-- JDBC connection pool (use the built-in) --> <!-- <property name="connection.pool_size">1</property> --> <!-- SQL dialect --> //方言设置 <property name="dialect">org.hibernate.dialect.MySQLDialect</property> <!-- Echo all executed SQL to stdout --> //显示sql语句 <property name="show_sql">true</property> <!-- Enable Hibernate's automatic session context management --> <!--<property name="current_session_context_class">thread</property>--> <!-- Drop and re-create the database schema on startup --> <!-- <property name="hbm2ddl.auto">create</property> --> <!-- Disable the second-level cache --> <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property> //映射配置文件 <mapping resource="com/bit/edu/cn/User.hbm.xml"/> </session-factory></hibernate-configuration>User.hbm.xml（映射配置文件）：
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"><hibernate-mapping package="com.bit.edu.cn"> <class name="User"> <id name="id"> //Native主键生成方式会根据不同的底层数据库自动选择Identity、Sequence、Hilo主键生成方式 <generator class="native"></generator> </id> <property name="username"></property> <property name="password"></property> </class></hibernate-mapping>User.java:
package com.bit.edu.cn;public class User { private int id; private String username; private String password; public int getId() { return id; } public String getPassword() { return password; } public String getUsername() { return username; } public void setId(int id) { this.id = id; } public void setPassword(String password) { this.password = password; } public void setUsername(String username) { this.username = username; }}HibernateUtil.java:
package com.bit.edu.cn;import java.util.List;import org.hibernate.HibernateException;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.hibernate.cfg.Configuration;import org.hibernate.hql.ast.SqlASTFactory;public class HibernateUtil { public static SessionFactory sessionFactory ; static{ try { //hibernate初始化 sessionFactory = new Configuration().configure().buildSessionFactory(); } catch (Exception e) { System.err.print("Create SessionFactory Failed！"); e.printStackTrace(); } } public static ThreadLocal session = new ThreadLocal(); public static Session currentSession()throws HibernateException { Session s = (Session) session.get(); if(s==null){ s = sessionFactory.openSession(); session.set(s); } return s; } public static void closeSession()throws HibernateException{ Session s = (Session) session.get(); if(s!=null){ s.close(); } session.set(null); }}ReadInfoUser.java(测试连接):
package com.bit.edu.cn;import java.util.List;import org.hibernate.Session;import org.hibernate.Transaction;public class ReadInfoUser { public static void main(String[] args){ ReadInfoUser rUser = new ReadInfoUser(); List<User> list = rUser.getList(); for(int i=0;i<list.size();i++){ System.out.println(list.get(i).getId()); } } private List<User> getList(){ Session session = HibernateUtil.currentSession(); Transaction transaction = session.getTransaction(); List<User> list = session.createQuery("from User").list(); return list; }}至此，所有的代码都贴完了，我也是刚接触这些东西，有什么不对的地方，请指出，万分感谢！
下载地址：https://github.com/DevilHeS/LoginProject
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