为什么我刚还可以运行的，现在就出现这种问题了呢。

<%@ page contentType="text/html; charset=GBK" %>
<html>
<head>
<title>
1
1。JSP</title>
</head>
<body bgcolor="#ffffff">
  <%request.setCharacterEncoding("gbk");  %>
<form action="" method="post" name="form">
<jsp:include flush="true" page="<%@ page contentType="text/html; charset=GBK" %>
<html>
<head>
<title>
1
</title>
</head>
<body bgcolor="#ffffff">
  <%request.setCharacterEncoding("gbk");  %>
<form action="" method="post" name="form">
<jsp:include flush="true" page="jspinc.jsp">
<jsp:param name="t" value="孙云"/>
</jsp:include><br>
<input type="text" name="test"/>
<input type="submit" name="submit" value="ceshi"/>
</form>
</body>
<jsp:param name="t" value="孙云"/>
</jsp:include><br>
<input type="text" name="test"/>
<input type="submit" name="submit" value="ceshi"/>
</form>
</body>jspinc.jsp
<%@ page contentType="text/html; charset=GBK"  language="java" import="java.sql.*" %>
<html>
<head>
<title>
jspinc
</title>
</head>
<body bgcolor="#ffffff"><%=request.getParameter("t")%>
</body>
</html>
"f.jsp": cannot find symbol; symbol  : method getparameter(java.lang.String), location: interface javax.servlet.http.HttpServletRequest
"for.jsp": cannot find symbol; symbol  : method getparameter(java.lang.String), location: interface javax.servlet.http.HttpServletRequest