第四次

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

<%
    String str = request.getParameter("address");
    String pwd = request.getParameter("password");
    if (null != str) {
        if (str.equals("jy") && pwd.equals("691")) {
            pageContext.forward("a.jsp");
        } else {
            out.println("您输入的账号或密码有误,请重新输入!");
        }
    }
%>


<html>
<head>
<form action="" method="post">
    <br> 账号: <input type="text" name="address" size="20"><br>
    密码: <input type="password" name="password" size="21"><br>
    验证码: <input type="text" name="uwv6" size="18"> <img id="yzmtp"
        src="images/1.jpg" width="120px" height="80px" />换一张<br> <input
        type="submit" value="登录" name="a">
</form>
</head>

<body style="background:url(images/2.png)";>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>


<html>
  <head>
    
  </head>
  
  <body style="background:url(images/2.png)">
        欢迎登录
<br>
</body>
</html>
原文地址:https://www.cnblogs.com/wudongyang521/p/14597106.html