1. forward1.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<html>
<center>
<form action="forward2.jsp" method="get" >
用户名：<input type="text" name="user" /><br>
密码： <input type="text" name="password" /><br>
<input type="submit" value="登陆"/>
<input type="reset" value="取消"/>
</form>
</center>
</html>2. forward2.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%
String user=request.getParameter("user");
String password=request.getParameter("password");
if(user.equals("admin") && password.equals("admin")) { %>
<jsp:forward page="success.jsp"/>
<% }
else
{ %>
<jsp:forward page="fail.jsp"/>
<% } %>
3.success.jsp
<%@ page contentType="text/html; charset=utf-8" language="java"%>
<% //request.setCharacterEncoding("utf-8"); %>
<h3>登陆成功</h3>4. fail.jsp
<%@ page contentType="text/html; charset=utf-8" language="java"%>
<%// request.setCharacterEncoding("utf-8"); %>
<h3 align=center><font color=red>登录失败，请重新登录</font></h3><span style="font-size:14px;color:#ff0000;"><%@ page contentType="text/html; charset=utf-8" language="java"%></span>