📄 login.jsp
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<%@ page language="java" pageEncoding="GB18030"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>网上选课系统----登录界面</title>
<link href="css/bgcolor.css" rel="stylesheet" type="text/css">
<style type="text/css">
<style type="text/css">
<!--
a:link{text-decoration:none}
a:hover{text-decoration:none}
a:visited{text-decoration:none}
-->
<!--
.STYLE2 {color: #000066}
.STYLE9 {color: #000066; font-weight: bold; font-size: 14px; }
.STYLE11 {font-size: 14px; font-weight: bold; }
.STYLE15 {
font-size: 24px;
color: #000066;
font-weight: bold;
}
body {
background-image: url();
}
-->
</style>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head>
<SCRIPT language=javascript>
function CheckForm()
{
if (document.loginform.uname.value==""){
alert("请输入用户名！");
document.loginform.uname.focus();
return false;
}
if (document.loginform.upassword.value==""){
alert("请输入密码！");
document.loginform.upassword.focus();
return false;
}
if (document.loginform.validate.value==""){
alert("请输入验证码！");
document.loginform.validate.focus();
return false;
}
}
function refresh()
{
document.getElementById("authImg").src='authImg?now='+ new Date();
}
</script>
<body vlink="red">
<p> </p>
<p> </p>
<p> </p>
<p align="center">
<%
String validateerror=(String)request.getAttribute("validateerror");
String error=(String)request.getAttribute("error");
if(validateerror!=null){
%>
<font color="red" class="STYLE11">验证码错误,请重新输入!!!</font>
<%}else if(error!=null){ %>
<font color="red" class="STYLE11">你输入的用户名或密码有误,请重新输入!!!</font>
<%} %>
</p>
<form name="loginform" action="loginservlet" method="post">
<table width="330" height="125" border="1" align="center" bordercolor="#000000" background="image/admin_bg_1.gif">
<tr>
<td><div align="center" class="STYLE15"> 登 录</div></td>
</tr>
<tr>
<td><span class="STYLE11">
<label>
<div align="center">
<span class="STYLE2">
<input name="radiobutton" type="radio" value="student" checked>
学生
<input type="radio" name="radiobutton" value="teacher">
教师
<input type="radio" name="radiobutton" value="manager">
管理员
</span>
</div>
</label>
</span></td>
</tr>
<tr>
<td><span class="STYLE9"> 用户名:
<input name="uname" type="text">
*</span></td>
</tr>
<tr>
<td><span class="STYLE9"> 密 码:
<input name="upassword" type="password">
*</span></td>
</tr>
<tr>
<td><span class="STYLE9"> 验证码:</span>
<span class="STYLE11">
<input name="validate" type="text" size="6" maxlength="6">
<img src="authImg" id="authImg"/><a href="#" onClick="refresh()">换一张</a></span></td>
</tr>
<tr>
<td><div align="center">
<input type="image" border=0 name="login" src="image/login.gif" width="59" height="20" onClick="return CheckForm()"/>
</div></td>
</tr>
</table>
</form>
</body>
</html>
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