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MyEclipse结构如下：

在my包下有2个类，

一个是Servlet是LoginServlet.java

package my;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;public class LoginServlet extends HttpServlet {	/**	 * Constructor of the object.	 */	public LoginServlet() {		super();	}	/**	 * Destruction of the servlet. 
	 */	public void destroy() {		super.destroy(); // Just puts "destroy" string in log		// Put your code here	}	/**	 * The doGet method of the servlet. 
	 *	 * This method is called when a form has its tag value method equals to get.	 * 	 * @param request the request send by the client to the server	 * @param response the response send by the server to the client	 * @throws ServletException if an error occurred	 * @throws IOException if an error occurred	 */	public void doGet(HttpServletRequest request, HttpServletResponse response)			throws ServletException, IOException {		response.setContentType("text/html");		PrintWriter out = response.getWriter();		out.println("");		out.println("");		out.println("  ");		out.println("  ");		out.print("    This is ");		out.print(this.getClass());		out.println(", using the GET method");		out.println("  ");		out.println("");		out.flush();		out.close();	}	/**	 * The doPost method of the servlet. 
	 *	 * This method is called when a form has its tag value method equals to post.	 * 	 * @param request the request send by the client to the server	 * @param response the response send by the server to the client	 * @throws ServletException if an error occurred	 * @throws IOException if an error occurred	 */	public void doPost(HttpServletRequest request, HttpServletResponse response)			throws ServletException, IOException {		request.setCharacterEncoding("UTF-8");		String user=request.getParameter("user");		String password=request.getParameter("password");				if("123456".equals(password)){			HttpSession hs=request.getSession();			hs.setAttribute("user", user);						//重定向到index.jsp			String contextPath=request.getContextPath();			response.sendRedirect(contextPath+"/index.jsp");		}		else{			response.sendError(400, "密码错误！");		}	}	/**	 * Initialization of the servlet. 
	 *	 * @throws ServletException if an error occurs	 */	public void init() throws ServletException {		// Put your code here	}}

另外一个是Test2Action.java

package my;import com.opensymphony.xwork2.ActionSupport;public class Test2Action extends ActionSupport{	String reason = "A test message!";		int result = 0;		@Override	public String execute() throws Exception	{		result = 100;				return "success";	}	public String getReason()	{		return reason;	}	public void setReason(String reason)	{		this.reason = reason;	}	public int getResult()	{		return result;	}	public void setResult(int result)	{		this.result = result;	}}

struts.xml配置如下

   
   	
    	    
                              	           
      
        /Test2_success.jsp
      	    
      	
    
   

index.jsp配置

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%>              	
   	
   	
       	
   	
   	
           	首页  

login.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%>                  	
   	
   	
       	
   	
   	
           	
   
      		用户名：
    
    
    
  		密码：
    
    
    
  		
    
    
    
  	
   
  

Test2_success.jsp

<%@ 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+"/";%>                  	
   	
   	
       	
   	
   	
         	
 测试1 ： #parameters 
	 ( 相当于 request.getParameter("")  ) 
		result: 
   		       
 测试2 ： #session 
    ( 相当于 session.getAttribute("") ) 
      	result: 
    
    另外一种写法 ： 
      	   	
 测试3 ： #reqeust
   	#request['xxx'] 相当于 request.getAttribute("xxx")   
   	#parameters['xxx'] 相当于 request.getParameter("xxx")  
   	两者不同   	    
 测试4 ：#action 
		result: 
     
	相当于: 
      	   	   	
 测试5 ：if判断 
   	
   
       		够大!   	
      	
   
       	    太小了！   	
      	   	
 测试6 ：if判断 
   	
   
       		未登录   	
      	
      	    
    ,您好!   	
      	  

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