<%@ page language="java" import="java.util.*" contentType="text/html; charset=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 'index.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>
<body>
<div id="container">
<div class="logo">
<a href="#"><img src="asserts/logo.png" alt="" /></a>
</div>
<div id="box">
<form action="dologin.jsp" method="post">
<p class="main">
<label>用户名: </label>
<input type="text" name="username" value="" >
<label>密码: </label>
<input type="password" name="password" value="">
</p>
<p class="space">
<input type="submit" value="登录" >
</p>
</form>
</div>
</div>
</body>
</html>
<%@ page language="java" import="java.util.*"contentType="text/html; charset=utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
String username=" ";
String password=" ";
request.setCharacterEncoding("utf-8");//防止中文乱码
username=request.getParameter("username");
password=request.getParameter("password");
//用户和密码都等于admin时，登录成功
if(username.equals("admin")&&password.equals("admin")){
session.setAttribute("loginUser", username);
request.getRequestDispatcher("login_success.jsp").forward(request, response);
}
else{
response.sendRedirect("login_failure.jsp");
}
%>
<%@ page language="java" import="java.util.*" contentType="text/html; charset=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 'index.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>
<body>
<div id="container">
<div class="logo">
<a href="#"><img src="asserts/logo.png" alt="" /></a>
</div>
<div id="box">
<%
String loginUser = "";
if(session.getAttribute("loginUser")!=null)
{
loginUser = session.getAttribute("loginUser").toString();
}
%>
欢迎您<font color="red"><%=loginUser%></font>,登录成功！
</div>
</div>
</body>
</html>
<%@ page language="java" import="java.util.*" contentType="text/html; charset=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 'index.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>
<body>
<div id="container">
<div class="logo">
<a href="#"><img src="asserts/logo.png" alt="" /></a>
</div>
<div id="box">
登录失败，请检查用户名或密码。<br>
<a href="login.jsp">返回</a>
</div>
</div>
</body>
</html>
下面是错误提示：
不偏不易
有所希冀