就是<jsp:include page="denglu.jsp"></jsp:include>这个
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>书城</title>
<link rel="stylesheet" type="text/css" href="index.css">
</head>
<body>
<div id="wrapper">
<div id="menu">
<ul>
<li>首页</li>
<li>购物车</li>
<li>社区</li>
<li>个人中心</li>
<li>注册账号</li>
</ul>
</div>
<div id="dl">
<form method="POST" action="dlok.jsp" name="form1" onsubmit="return check()">
<table width=20% align="right" border=0>
<tr>
<td>用户名：</td>
<td><input type="text" name="name" size="18" id="name"></td>
</tr>
<tr>
<td>密码：</td>
<td><input type="password" name="pass" size="20" id="pass"></td>
</tr>
<tr>
<tr><select name="type">
<option value="1">普通用户</option>
<option value="2">管理员</option>
</select></tr>
<td>
</td>
<td><input type="submit" value="登录" name="ok">
<input type="reset" value="重置" name="cancel"></td>
</tr>
</table>
</form>
</div>
</div>
<div id="content">
<jsp:include page="denglu.jsp"></jsp:include>
</div>
</body>
</html>
<script type="text/javascript">
function check()
{
if (form1.name.value=="")
{
alert("请输入用户名!");
form1.name.focus;
return false;
}
if (form1.pass.value=="")
{
alert("请输入密码!");
form1.pass.focus;
return false;
}
}
</script>
可能是 你的路径出现了问题，可能是引入时缺少引入的前段框架