代码是这样的：
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib tagdir=" http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>用户登录</h1>
<form action="<c:url value="/user/handel"/>" method="POST">
<p>用户名：<input type="text" name="user"></p>
<p>密码：<input type="password" name="password"></p>
<p><input type="submit" value="提交"></p>
</form>
</body>
</html>
输入地址后就报错：org.apache.jasper.JasperException: Tag file directory http://java.sun.com/jsp/jstl/core does not start with "/WEB-INF/tags"
什么情况啊？
说得详细点..我新手呢....具体怎么做...