struts1的一个简单登陆功能

1   <form action="<%= request.getContextPath() %>/login.do" method="post">
2         username:<input type="text" name="username" /><br>
3         password:<input type="password" name="password" />
4         <input type="submit" value="login" />
5     </form>

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app version="2.5" 
 3     xmlns="http://java.sun.com/xml/ns/javaee" 
 4     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 5     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
 6     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> 
 7   <servlet>
 8   <!-- 这里的servlet-name和下面的servlet-name成对应关系 -->
 9       <servlet-name>action</servlet-name>
10       <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
11       <!-- 以下的读取参数,就是加载配置文件 -->
12       <init-param>
13           <param-name>config</param-name>
14           <param-value>/WEB-INF/struts-config.xml</param-value>
15       </init-param>
16       <load-on-startup>0</load-on-startup>
17   </servlet>
18   
19   <!-- 所有的.do请求 进这里来,当有do请求过来的时候,根据servlet-name查找到相应的servlet. -->
20   <servlet-mapping>
21       <servlet-name>action</servlet-name>
22       <url-pattern>*.do</url-pattern>
23   </servlet-mapping>
24   
25 </web-app>

 1 <?xml version="1.0" encoding="ISO-8859-1" ?>
 2 
 3 <!DOCTYPE struts-config PUBLIC
 4           "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"
 5           "http://struts.apache.org/dtds/struts-config_1_3.dtd">
 6           
 7 <struts-config>
 8     <form-beans>
 9         <form-bean name="loginForm" type="cn.itcast.LoginForm"></form-bean>
10     </form-beans>    
11     <action-mappings>
12         <action path="/login" type="cn.itcast.LoginAction" name="loginForm">
13             <forward name="loginSuccess" path="/LoginSuccess.jsp"></forward>
14             <forward name="loginFailure" path="/LoginFailure.jsp"></forward>
15         </action>
16     </action-mappings>    
17 </struts-config>

 1 package cn.itcast;
 2 
 3 import org.apache.struts.action.ActionForm;
 4 
 5 public class LoginForm extends ActionForm {
 6     private String username=null;
 7     private String password=null;
 8     public String getUsername() {
 9         return username;
10     }
11     public void setUsername(String username) {
12         this.username = username;
13     }
14     public String getPassword() {
15         return password;
16     }
17     public void setPassword(String password) {
18         this.password = password;
19     }
20     
21 }

 1 package cn.itcast;
 2 
 3 import javax.servlet.http.HttpServletRequest;
 4 import javax.servlet.http.HttpServletResponse;
 5 
 6 import org.apache.struts.action.Action;
 7 import org.apache.struts.action.ActionForm;
 8 import org.apache.struts.action.ActionForward;
 9 import org.apache.struts.action.ActionMapping;
10 
11 public class LoginAction extends Action {
12 
13     @Override
14     public ActionForward execute(ActionMapping mapping, ActionForm form,
15             HttpServletRequest request, HttpServletResponse response)
16             throws Exception {
17         LoginForm loginForm=(LoginForm) form;
18         if(loginForm.getUsername().equals("itcast")&&loginForm.getPassword().equals("123456")){
19             return mapping.findForward("loginSuccess");
20         }else{
21             return mapping.findForward("loginFailure");
22         }        
23     }
24 }