第四次JSP作业

<%@ 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>  

原文地址:https://www.cnblogs.com/527x/p/14597163.html