<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% 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> <% String incode = (String)request.getParameter("code"); String rightcode = (String)session.getAttribute("rCode"); if(incode != null && rightcode != null){ if(incode.equals(rightcode)){ out.println("验证码输入正确!"); }else{ out.println("验证码输入不正确,请重新输入!"); } } %> <body> <form action="login.jsp" method="post"> 用户名: <input type="text" name="username"/><br/> 密码: <input type="password" name="password"/><br/> 验证码: <img src="number.jsp"/> <input type="text" name="code"/> <input type="submit" value="登录"/> </form> </body> </html>