📄 update.jsp
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<%@ page session="true" language="java"
contentType="text/html; charset=gb2312" pageEncoding="gb2312"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<LINK href="../res/css/main.css" rel=stylesheet>
<title>Insert title here</title>
</head>
<script>
function check()
{
var rule = /^[A-Za-z0-9]\w{0,19}$/;
if(document.update.oldpwd.value=="")
{
alert("密码不可为空！！！");
return false;
}
if (document.update.oldpwd.value!=<%=request.getAttribute("pwd")%>)
{
document.update.oldpwd.focus();
alert("旧密码不正确");
return false;
}
if(!rule.test(update.oldpwd.value))
{
alert("密码只能由数字和字母组成！");
return false;
}
if (checkspace(document.update.newpwd.value))
{
document.update.newpwd.focus();
alert("新密码不能为空");
return false;
}
if (document.update.checkpwd.value!=document.update.newpwd.value)
{
document.update.checkpwd.focus();
alert("新密码不一致");
return false;
}
function checkspace(check) {
var str = '';
for(i = 0; i < check.length; i++) {
str = str + ' ';
}
return (str == check);
}
}</script>
<body>
<form method="post" name="update" action="Update">
<table>
<tr>
<td>name</td>
<td><input type="text" name="username" value=${student.s_name } disabled="faulse"></td>
</tr>
<tr>
<td>username</td>
<td><input type="text" name="s_number" value =<%=request.getAttribute("s_num")%> disabled="faulse"></td>
</tr>
<tr>
<td>oldpassword</td>
<td><input type="password" name="oldpwd"></td>
</tr>
<tr>
<td>newpassword</td>
<td><input type="password" name="newpwd"></td>
</tr>
<tr>
<td>checkpassword</td>
<td><input type="password" name="checkpwd"></td>
</tr>
<tr>
<td>c_id</td>
<td><input type="text" name="c_id"value=<%=request.getAttribute("c_id") %> disabled="faulse"></td>
</tr>
<tr>
<td>classtype</td>
<td><input tyep="text" name="c_type"value=<%=request.getAttribute("c_type")%> disabled="faulse"></td>
</tr>
<tr>
<td><input type="submit" name="tijiao" onClick=" return check();"></td>
</tr>
</table>
</form>
</body>
</html>
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