Problem !! How to upload an file and get parameters on the same form ?

Question

Hello!
Is there anyway of getting parameters from an
text field input in a form like :
<form name="signinForm" method="post" action="uploadFile.jsp" enctype="multipart/form-data" >Actually I would like to insert the parameters and make the upload of an file
on the same form. It is something likethis :
Form.jsp
<form name="signinForm" method="post" action="uploadFile.jsp" enctype="multipart/form-data" >   
<input type="text" id="name" name="signinName" />
<input name="signinFile" id="fileUp" type="file" />   
<input type="submit" id="submit_btn" name="signinSubmit"/>uploadingFile.jsp
<%@ page import="java.io.*,javax.servlet.http.HttpServletRequest,javax.servlet.ServletInputStream" %>
<%@ page import="java.io.FileWriter,java.io.IOException" %>
<%
.//upload the file
String email = request.getParameter("signinName").trim(); //this line is bringing me an NullPointerException
%>Thanks in advance for any suggestion!!
All the best!

Answer 1

You can get the parameter value directly. You can do the following to get the parameter name.
Directly take the request's input stream and parse the header and findout the value for text field.
Or you can use apache's file upload utilities and do the following
DiskFileItemFactory factory = new DiskFileItemFactory();
               ServletFileUpload upload = new ServletFileUpload(factory);
               List fileItems = upload.parseRequest(request);
               Iterator iter = fileItems.iterator();
               while (iter.hasNext()) {
                    FileItem item = (FileItem) iter.next();
                    if (item.isFormField()) {
     //Form data fields will be displayed here          out.println(item.getFieldName());
     out.println(item.getString());
All the best..