Submitting a text field along with a file?

I'm in dire need of assitance. I have a form to upload a file onto a server, but I also need to pass a string (UUID) to the bit of code handling the file.

If I set the enctype to "multipart/form-data" the input "notification_parameter" containing the string is always null. I'm guessing it's impossible to submit a text field in the same form as a file, is this right?

I need some way to send the string. Any help is appreciated. The code is below.

<%@ page import="java.io.*"%>
<%@ page import="kunvak.api.KunVaKPlantConnection"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<%

String savePath = "D:\\temp\\";
	String contentType = request.getContentType();
	if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) {
		String uuid = request.getParameter("notification_parameter");
		System.out.println("UUID : " + uuid);	
		DataInputStream in = new DataInputStream(request.getInputStream());
		int formDataLength = request.getContentLength();
		
		byte dataBytes[] = new byte[formDataLength];
		int byteRead = 0;
		int totalBytesRead = 0;
		
		while (totalBytesRead < formDataLength) {
			byteRead = in.read(dataBytes, totalBytesRead, formDataLength);
			totalBytesRead += byteRead;
		}
	
	String file = new String(dataBytes);
	String saveFile = file.substring(file.indexOf("filename=\"") + 10);
	//out.print("FileName:" + saveFile.toString());
	saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
	//out.print("FileName:" + saveFile.toString());
	saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
	//out.print("FileName:" + saveFile.toString());
	
	//out.print(dataBytes);
	
	int lastIndex = contentType.lastIndexOf("=");
	String boundary = contentType.substring(lastIndex + 1,contentType.length());
	//out.println(boundary);
	int pos;
	pos = file.indexOf("filename=\"");
	
	pos = file.indexOf("\n", pos) + 1;
	
	pos = file.indexOf("\n", pos) + 1;
	
	pos = file.indexOf("\n", pos) + 1;
	
	
	int boundaryLocation = file.indexOf(boundary, pos) - 4;
	int startPos = ((file.substring(0, pos)).getBytes()).length;
	int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;
	String saveFileName = saveFile;
	saveFile = savePath + saveFile;
	FileOutputStream fileOut = new FileOutputStream(saveFile);
	
	
	//fileOut.write(dataBytes);
	fileOut.write(dataBytes, startPos, (endPos - startPos));
	fileOut.flush();
	fileOut.close();
	
	out.println(saveFile + " tallennettu");
	
	KunVaKPlantConnection api = new KunVaKPlantConnection();
	
	try {
		boolean fileuploaded = api.putFileAttachment2(saveFile);
		if (fileuploaded)
			out.println(saveFile + " tallennettu");	
	}
	catch(IOException e) {
		
	}
}
%>

<html>
 <head><title>Liitetiedostojen lisäys</title></head>
 <script type="text/javascript">
	function getParameter(){
		var url = document.location.href;
		var parameter = url.split("?");

return parameter[1];
	}
 
 </script>
<body onLoad="document.getElementById('notificationid').value = getParameter(); ">
 
	
	<form action="" method="post" ENCTYPE="multipart/form-data">
		<input type="text" name="notification_parameter" id="notificationid" value="test"></input>
		<br>Valitse liite: <input name="file" type="file" id="file">

<input type="submit" name="Submit" value="Lähetä liite"/><br><br>
 </form>
 <a href="create.jsp">Palaa notifikaation luontiin</a>
 </body>
 </html>

mr Niemelä, you should check for Apache Jakarta Commons FileUpload project. As you are probably struggling with encoding too, please notice that you should have Filter for character endoding and then you should be aware of method String value = item.org.apache.commons.fileupload.FileItem(String charset);

Also pages should have following settings:
<%@page language="java" contentType="text/html;charSet=UTF-8" pageEncoding="UTF-8"%>
<head>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>

also I think you might have to set response encoding..
response.setCharacterEncoding("UTF-8");

I hope this will help you..

Thank you, fellow Mr. Niemela!

This is quite embarrasing, but I had already added the UploadFile jar into my project, but had totally forgotten about it. Now with the FileUpload implementation, things work perfectly!