Sending Zipped Files Across Sockets

Question

Hi,
In my application, I have to send files across sockets. It's already being done, but I wanted to improve performance.
Currently, we read in the File and send it across however many bytes at a time.
Using java's zip utilities does anyone know of an example or have any ideas about reading the bytes in, compressing them, and then sending them across?
thanks for any help in advance,
Geoff

Answer 1

Here's the server-side code which corresponds to the code I got from you for ClientSide (it has been tweaked to try to get rid of the error).
forgive the lack of indentation (error to follow code)
import java.io.*;
import java.net.*;
import java.util.zip.*;
public class ReceiveData
public static void main(String[] args)
System.out.println("Receive Data");
try
ServerSocket serverSock = new ServerSocket(1400);
Socket sock = null;
while(true)
System.out.println("before accept");
sock=serverSock.accept();
System.out.println("after accept");
FileOutputStream fileOut = new FileOutputStream("d:\\javatests\\CompressTest\\test2.txt");
byte[] buffer = new byte[4092];
DataInputStream is = new DataInputStream(new GZIPInputStream(sock.getInputStream()));
int totalBytes = 0;
int bytesRead = is.read(buffer);
totalBytes += bytesRead;
while(bytesRead !=-1)
System.out.println("inside loop");
     fileOut.write(buffer, 0, bytesRead);
     bytesRead = is.read(buffer);
     totalBytes += bytesRead;
fileOut.flush();
fileOut.close();
is.close();
System.out.println("totalBytes: " + totalBytes);
catch(Exception e)
e.printStackTrace();
produces this error:
java.net.SocketException: Connection reset
     at java.net.SocketInputStream.read(SocketInputStream.java:168)
     at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:213)
     at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:134)
     at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:87)
     at java.io.DataInputStream.read(DataInputStream.java:113)
     at ReceiveData.main(ReceiveData.java:45)
and line 45 corresponds to the following line:
int bytesRead = is.read(buffer); (the one before the while loop)
thanks again to all,
Geoff
}