因为要涉及到文件上传，所以只能加上enctype= "multipart/form-data "
但是JSPSmartUpload 用getrequest方法获得的值还是NULL，不知道为什么
代码简化如下：
<%@ page language= "java " import= "java.util.* " %>
<%@ page contentType= "text/html; charset=gb2312 " %>
<jsp:useBean id= "mySmartUpload " scope= "page " class= "com.jspsmart.upload.SmartUpload " />
<%
String courseid= " ";
if (mySmartUpload.getRequest().getParameter( "courseid ")!=null){
courseid=mySmartUpload.getRequest().getParameter( "courseid ");
}
%>
<form name= "form1 " method= "post " action= " " enctype= "multipart/form-data ">
<input name= "courseid " type= "text " id= "courseid " value= " <%=courseid%> ">
<input type= "submit " name= "Submit " value= "提交 ">
</form>
------解决方案--------------------
你看看是不是你的su.initialize(pageContext);没写，没有初始化
------解决方案--------------------
mySmartUpload.initialize(pageContext);
------解决方案--------------------
getrequest是没法用的。