Java Development

[nikita18]

I'm trying to upload .AMR file to my server. My code is as follows:

public byte[] send(byte[] fileBytes) throws Exception
	{
		String boundary = getBoundaryString();
		String endBoundary = "\r\n--" + boundary + "--\r\n"; 		
		HttpConnection hc = null; 
		InputStream is = null; 
		ByteArrayOutputStream bos = new ByteArrayOutputStream(); 
		byte[] res = null; 
		try
		{
			hc = (HttpConnection) Connector.open(url);				 
			hc.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + getBoundaryString());						
			hc.setRequestMethod(HttpConnection.POST);
			hc.setRequestProperty(HttpProtocolConstants.HEADER_ACCEPT_CHARSET,
					"ISO-8859-1,utf-8;q=0.7,*;q=0.7");									
			OutputStream dout = hc.openOutputStream();				
			dout.write(boundaryMessage.getBytes());
			dout.write(this.postBytes);
 			dout.write(endBoundary.getBytes()); 		 
			dout.close();			 
			int ch;				
			is = hc.openInputStream(); //exception raised here			
			if(hc.getResponseCode()== HttpConnection.HTTP_OK)
	                {						
	        	while ((ch = is.read()) != -1)
				{
					bos.write(ch);
				}
				res = bos.toByteArray();
				System.out.println("res loaded..");				
	                 }
			else {				
				System.out.println("Unexpected response code: " + hc.getResponseCode());			
				hc.close();
				return null;
			} 	          
		}
		catch(IOException e)
		{			
			System.out.println("====IOException : "+e.getMessage()+" Class: "+e.getClass());				
		}
		catch(Exception e1)
			{					
				System.out.println("====Exception : "+e1.getMessage()+" Class: "+e1.getClass());	
			}
		finally
		{
			try
			{
				if(bos != null)
					bos.close();
 
				if(is != null)
					is.close();
 
				if(hc != null)
					hc.close();
			}
			catch(Exception e2)
			{
				e2.printStackTrace();				
				System.out.println("====Exception : "+e2.getMessage());	
			}
		}
		return res;
	}		

The line of code highlighted above raises a ConnectionClosedException. Can anybody tell me why and what I can do to overcome it? Thanks in advance.

[peter_strange]

You should check the response code before you try to open the input stream and only open the input stream when the response code is HttpConnection.HTTP_OK. 

[nikita18]

Thanks. Okay I have done that. Now it raises the same exception on line hc.getResponseCode(); 

[peter_strange · Accepted solution]

This suggests the server is not accepting your request.  See if you can find out what the server thinks is happening.  Check your URL too. 

[nikita18]

Solved. Had some problem in my code. Thanks for helping me everytime Peter. Thanks a ton.