Client

public void transferImage() {

File file = new File(ServerStats.clientFolder);
String[] files = file.list();
int numFiles = files.length;
boolean done = false;
BufferedInputStream bis;
BufferedOutputStream bos;
int num;
byte[] byteArray;
long count;
long len;

Socket socket = null ;
while (!done){
try{
  socket = new Socket(ServerStats.imgServerName,ServerStats.imgServerPort) ;
  InputStream inStream = socket.getInputStream() ;
  OutputStream outStream = socket.getOutputStream() ;
  System.out.println("Connected to : " + ServerStats.imgServerName);

  BufferedReader inm = new BufferedReader(new InputStreamReader(inStream));
  PrintWriter out = new PrintWriter(outStream, true /* autoFlush */);

  for (int itor = 0; itor < numFiles; itor++) {

    String fileName = files[itor];
    System.out.println("transfer: " + fileName);
    File sentFile = new File(fileName);
    len = sentFile.length();
    len++;
    System.out.println(len);
    out.println(len);
    out.println(sentFile);


    //SENDFILE
    bis = new BufferedInputStream(new FileInputStream(fileName));
    bos = new BufferedOutputStream(socket.getOutputStream( ));
    byteArray = new byte[1000000];
    count = 0;
    while ( count < len ){
      num = bis.read(byteArray);
      bos.write(byteArray,0,num);
      count++;
    }
    bos.close();
    bis.close();
    System.out.println("file done: " + itor);
  }
  done = true;
}catch (Exception e) {
  System.err.println(e) ;
}
}

}

Server

public static void main(String[] args) {
BufferedInputStream bis;
BufferedOutputStream bos;
int num;
File file = new File(ServerStats.serverFolder);
if (!(file.exists())){
  file.mkdir();
}

try {
  int i = 1;
  ServerSocket socket = new ServerSocket(ServerStats.imgServerPort);
  Socket incoming = socket.accept();
  System.out.println("Spawning " + i);

  try {
    try{
      if (!(file.exists())){
        file.mkdir();
      }
      InputStream inStream = incoming.getInputStream();
      OutputStream outStream = incoming.getOutputStream();

      BufferedReader inm = new BufferedReader(new InputStreamReader(inStream));
      PrintWriter out = new PrintWriter(outStream, true /* autoFlush */);
      String length2 = inm.readLine();
      System.out.println(length2);
      String filename = inm.readLine();
      System.out.println("Filename = " + filename);
      out.println("ACK: Filename received = " + filename);

      //RECIEVE and WRITE FILE
      byte[] receivedData = new byte[1000000];
      bis = new BufferedInputStream(incoming.getInputStream());
      bos = new BufferedOutputStream(new FileOutputStream(ServerStats.serverFolder + "/" + filename));

      long length = (long)Integer.parseInt(length2);
      length++;
      long counter = 0;
      while (counter < length){
        num = bis.read(receivedData);
        bos.write(receivedData,0,num);
        counter ++;
      }
      System.out.println(counter);
      bos.close();
      bis.close();

      File receivedFile = new File(filename);
      long receivedLen = receivedFile.length();
      out.println("ACK: Length of received file = " + receivedLen);

    } finally {
      incoming.close();
   }
  } catch (IOException e){
    e.printStackTrace();
  }
} catch (IOException e1){
  e1.printStackTrace();
}

}

The code is some I found, and I have slightly modified it, but I am having problems transferring multiple images over the server.

Output on Client:

run ServerQueue.Client
Connected to : localhost
transfer: Picture 012.jpg
1312743
java.lang.ArrayIndexOutOfBoundsException
Connected to : localhost
transfer: Picture 012.jpg
1312743

Cant seem to get it to transfer multiple images.

But bothsides I think crash or something because the file never finishes transfering