<html>
<head>
<title>My JSP 'ManagerLogin.jsp' starting page</title>
</head>
<body>
<center>
<font size="5">管理员登录!</font> <br>
<!-- <form action="demo_form.asp"> -->
<form action="Manager.jsp">
用户名: <input type="text" name="user"><br>
密码: <input type="text" name="pass"><br>
<input type="submit" value="登录">
</form>
</center>
</body>
</html>
如何修改才能用string类型的变量保存输入的username和password?