Struts2+Spring2.5+Hibernate3.1实现登陆示例
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：
<?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/javaee
http://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.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.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
http://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．
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.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
http://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.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
http://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.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
http://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 {
// Fields
private 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 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;
}
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。