Problems sending file throught TCP sockets

[Nite]

I would like to transfer a file throught a tcp socket, here there is what the sender program does :

Code:

try{
 
	File localFile = new File("shared/"+fileName);
	DataOutputStream oos = new DataOutputStream(socket.getOutputStream());	
	DataInputStream fis = new DataInputStream(new FileInputStream(localFile));
 
	while(fis.available() > 0){
		oos.writeByte(fis.readByte());
	}
 
	}
	catch(Exception e){}
}

and here what the receiver program does:

Code:

	try{
 
	File downloadFile = new File("incoming/"+fileName);
	downloadFile.createNewFile();
 
	ois = new DataInputStream(connectionSocket.getInputStream());
	fos = new DataOutputStream(new FileOutputStream(downloadFile));
 
	while(ois.available() > 0){
 
		fos.writeByte(ois.readByte());
	}
 
	}
	catch(Exception e){}
}

Where i m wrong? it doesnt work , it just create the new file in the incoming folder, but its size remains 0 byte

help a newbye please

[levent]

You can try putting some System.out.println to test if the program enters your loops!

Also make sure that the socket connection is working. In these code segments, i did not see any mistakes. I think you should try to find the error by checking which steps are performed as expected and which are not. You can find the error in that way..

[Nite]

the program didnt enter into the while loops, that was because of the available method, probably the two process didnt sync... anyway i solved in this way :

int length;
byte[] buffer = new byte[4096];
while((length = fis.read(buffer)) != -1){

out.write(buffer, 0, length);
}

and now it works, thanks anyway