JSP页面出现null
兄弟们，帮忙调一下这两个JSP，我怎么出来的页面是null？
－－Forwardjsp
<%@ page contentType= "text/html; charset=gb2312 " %>
<html>
<head>
<title>
Forward
</title>
</head>
<body bgcolor= "#ffffff ">
<%
String Name=request.getParameter( "userName ");
String Str= "谢谢光临！ ";
Str+=Name;
out.println(Str);
%>
</body>
</html>
－－Welcome.jsp
<%@ page contentType= "text/html; charset=gb2312 " %>
<html>
<head>
<title>
Welcome
</title>
</head>
<body bgcolor= "#ffffff ">
<jsp:forward page= "Forward.jsp ">
<jsp:param name= "userName " value= "Xi 'an JiaoTong University "/>
</jsp:forward>
</body>
</html>
[解决办法]
改用
<a href = "Forward.jsp?userName =Xi 'an JiaoTong University "> </a>
这种形式