send object TO servlet

Jim Kernsey

HI

I'm fairly new to servlets and I'm struggeling with my code.

I want to send an arraylist to a servlet from my J2ME application.

Here is my servlet:

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
                         InputStream is = request.getInputStream();

		ObjectInputStream ois = new ObjectInputStream(is);
			
		try {
			ArrayList arrayList = (ArrayList) ois.readObject();
			
		} catch (IOException e) {
			e.printStackTrace();

Here is the code for my Client application:

HttpConnection http = null;
	String url = "http://localhost:8080/BestBet/LoginServlet";

	try
		{
			ArrayList ar = new ArrayList();
			ar.add(userName);
			ar.add(password);
			
			http = (HttpConnection) Connector.open(url, Connector.READ_WRITE);
			http.setRequestMethod(HttpConnection.POST);
		
			ByteArrayOutputStream baos = new ByteArrayOutputStream();
			ObjectOutputStream os = new ObjectOutputStream(baos);
			os = new ObjectOutputStream(baos);
			os.writeObject(ar);
			
			if (http.getResponseCode() == HttpConnection.HTTP_OK) {
				ObjectInputStream ois = new ObjectInputStream(http.openInputStream());
				returnList = (ArrayList) ois.readObject();
				ois.close();
			}
			http.close();
		}

	catch (Exception e) {
			System.out.println (e);
		}
	return returnList;
	}	

I'm guessing that i'm missing some important code.

At the min the server and client freeze when the
ObjectInputStream ois = new ObjectInputStream(is);
lines tries to execute.

I'd be greatful for any help at all.

Cheers
JK

nolaen

Try converting the ArrayList to a byte array and pass that. Retrieve and convert back