Struts2+Spring2.5+Hibernate3.1实现登陆示例

配置过程大纲

1 web.xml struts2 spring hibernate 三项配置

2 struts.xml 配置struts2 action的路由 action交给spring管理

3 整合hibernate 将 hibernate.cfg.xml /*.hbm.xml 配置到applicationContext-db.xml 配置数据源事务。

4 配置spring的依赖注入 applicationContext-dao.xml applicationContext-service.xml

applicationContext-action.xml

本人初学struts2，介于此所以对struts2的框架流程不熟悉，这是我的第一个struts2+spring+hibernate的整合程序，一个简单登陆程序，因为本人也是初出茅庐遇到了很多问题，做完之后马上就发布出来希望对那些刚开始学习struts2的同行有所帮助，因为本人也是菜鸟，班门弄斧了就请大家别见笑了。好了不说废话了，我们开始吧！

首先建立一个web project 工程，我这里的命名是ssh2，先将struts2的包导入到工程下的lib先，这里说明哈struts2的包请到http://struts.apache.org/去下载吧，其中要导入的包有commons-logging-1.0.4.jar、ognl-2.6.11.jar、oro-2.0.8.jar、struts2-core-2.0.12.jar、struts2-spring-plugin-2.0.12.jar、xwork-2.0.6.jar，我这里为了方面我把所有的包都导入进入了，这样方面以后做项目的时候整合完整的包。spring2.5直接在myeclipse下去导入了，由于myeclipse还没有整合struts2到他的插件中去，所以struts2需要手动去导入了．hibernate3.1也是在myeclipse中去导了，导的过程中，会发现有许多包和spring的包有冲突的，这没关系，直接keep存在就行了，然后完整工程包的导入，然后我们开始我们的配置工作．这时候大家可能发现不了包冲突所带来的后果，后面我们发现问题的，这里我就不详细说明包冲突的错误了，我这里提示直接删除asm-2.2.3.jar,因为这个包是hibernate与spring命名冲突的原因所造成的．

　　其次，我们开始我们的配置工作了，首先是配置web.xml：　　包括 struts2 spring hibernate 三项配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"><!-- 配置spring的监听器 --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath*:org/test/spring/applicationContext*.xml</param-value></context-param><!-- 开启监听 --><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 配置OpenSessionInViewFilter,必须在struts2监听之前 --><filter><filter-name>lazyLoadingFilter</filter-name><filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class></filter><!-- 设置监听加载上下文 --><filter><filter-name>struts2</filter-name><filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class></filter><filter-mapping><filter-name>lazyLoadingFilter</filter-name><url-pattern>*.action</url-pattern></filter-mapping><filter-mapping><filter-name>struts2</filter-name><url-pattern>/*</url-pattern></filter-mapping>
</web-app>

　　然后开始配置applicationContext-db.xml文件：hibernate.cfg.xml的数据库配置事物管理移交到

applicationContext-db.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"><bean id="dataSource"class="org.apache.commons.dbcp.BasicDataSource"><property name="driverClassName"value="com.mysql.jdbc.Driver"></property><property name="url" value="jdbc:mysql://localhost:3306"></property><property name="username" value="root"></property><property name="password" value="root"></property></bean><bean id="sessionFactory"class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"><property name="dataSource"><ref bean="dataSource" /></property><property name="hibernateProperties"><props><prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop></props></property><property name="mappingLocations"><list><value>classpath:/org/test/vo/*.hbm.xml</value></list></property></bean><!--| 事务管理--><bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"><property name="sessionFactory" ref="sessionFactory"/></bean><!-- 使用annotation定义事务 --><tx:annotation-driven transaction-manager="transactionManager" />
</beans>注意：这些配置是基础，前期大家不用去在意他的原由，在漫漫开发的过程中，就会明白这些配置的意义和带来的方便之处了．

struts.xml

再次，就是配置struts.xml文件了，这个配置文件需要大家去手动创建，具体如下：<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN""http://struts.apache.org/dtds/struts-2.0.dtd"><!-- strust2的版本声明 --><struts><constant name="struts.objectFactory" value="spring"/>//这里要特别申明，这是表示struts2的action交有spring来管理<package name="struts2" extends="struts-default"><action name="login" class="org.test.action.LoginAction"><result name="success">/result.jsp</result><result name="failer">/failer.jsp</result></action></package></struts>

　　最后，由于spring需要去管理所有的逻辑反转控制，所以需要对dao＼service＼action这个三个曾进行驻入配置，具体如下：

applicationContext-dao.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"><bean  id="itestdao" class="org.test.dao.TestDAO"><property name="sessionFactory"><ref bean="sessionFactory"/></property></bean>
</beans>

applicationContext-service.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"><bean id="loginService" class="org.test.service.LoginService"><property name="itestdao"><ref bean="itestdao"/></property></bean>
</beans>

applicationContext-action.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"><bean id="login" class="org.test.action.LoginAction"><property name="loginService"><ref bean="loginService"/></property></bean>
</beans>

注意：以上的配置文件其实是struts1+spring=hibernate的配置是大同的，上面的配置文件和applicationContext.xml在同一文件夹下，该工程在org.test.spring，这个路径在web.xml中已经有配置．

我把所有的代码都贴上来吧。

所用的数据库表如下：DROP TABLE IF EXISTS `user`;CREATE TABLE `user` (`userid` int(11) NOT NULL auto_increment,`username` varchar(20) NOT NULL,`password` varchar(16) NOT NULL,`email` varchar(30) NOT NULL,PRIMARY KEY  (`userid`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

包org.test.vo如下：

package org.test.vo;/*** User entity.** @author MyEclipse Persistence Tools*/public class User implements java.io.Serializable {// Fieldsprivate Integer userid;private String username;private String password;private String email;// Constructors/** default constructor */public User() {}/** full constructor */public User(String username, String password, String email) {this.username = username;this.password = password;this.email = email;}// Property accessorspublic 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;}public String getEmail() {return this.email;}public void setEmail(String email) {this.email = email;}}

包org.test.dao如下：

package org.test.dao;public interface ITestDAO {public Object query(String HQL) throws Exception ;}package org.test.dao;import java.util.List;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;public class TestDAO extends HibernateDaoSupport implements ITestDAO{public Object query(String HQL) throws Exception {List list = this.getHibernateTemplate().find(HQL);return list;}}

包org.test.service如下：

package org.test.service;import java.util.List;import javax.servlet.http.HttpServletRequest;import org.test.dao.ITestDAO;
import org.test.vo.User;public class LoginService {private ITestDAO itestdao;public void setItestdao(ITestDAO itestdao) {this.itestdao = itestdao;}public boolean userlogin(User user) throws Exception {boolean flag = false;String name = user.getUsername();String pwd = user.getPassword();String sql = "from User as t where t.username = '" + name+ "' and t.password = '" + pwd + "'";List<User> list = (List<User>) itestdao.query(sql);System.out.println(sql);System.out.println(list);  if (list != null && list.size() > 0) {return true;} else {return flag;}}}

包org.test.action如下：

package org.test.action;import org.test.service.LoginService;
import org.test.vo.User;public class LoginAction {private LoginService loginService ;private User user ;public User getUser() {return user;}public void setUser(User user) {this.user = user;}public void setLoginService(LoginService loginService) {this.loginService = loginService;}public String execute() throws Exception{boolean flag = loginService.userlogin(user);if(flag){System.out.print("successfully");return "success" ;}else{System.out.print("failure!");return "failer" ;}}
}

登陆页面：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%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 'login.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"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body><h1>用户登陆</h1><s:form action="login.action">  <s:textfield name="user.username" label="username"></s:textfield><s:password name="user.password" label="password"></s:password><s:submit name="submit"></s:submit></s:form></body>
</html>

成功页面：

<%@ 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>result</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"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body>username:${requestScope.user.username}<br>password:${requestScope.user.password}</body>
</html>

失败页面：

<%@ 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 'failer.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"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body>result failer!!! <br></body>
</html>

注：把上面的包连起来就构件成了这个工程，然后lib包导进去之后，就可以正常运行了。

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