Send and receive file through ServerSocket

Question

Hi all!
I try to send and then receive file via Server Socket but something goes wrong.
I can send file from Client to Server, but after that I couldn't receive another file from Server to Client. What might be the problem?
ex Client:
public class FileClient{
  public static void main (String [] args ) throws IOException {
    int bytesRead;
    int current = 0;
    Socket sock = new Socket("localhost",13267);
    System.out.println("Connecting...");
    System.out.println("Try to send...");
    //send file
    File myFile = new File ("sourceImg.jpg");
    byte [] mybytearrayTOSend  = new byte [(int)myFile.length()];
    FileInputStream fis = new FileInputStream(myFile);
    BufferedInputStream bis = new BufferedInputStream(fis);
    bis.read(mybytearrayTOSend,0,mybytearrayTOSend.length);
    OutputStream os = sock.getOutputStream();
    System.out.println("Sending...");
    os.write(mybytearrayTOSend,0,mybytearrayTOSend.length);
    os.flush();
    System.out.println("File was sent...");
   System.out.println("Try to receive...");
    // receive file
   byte [] mybytearray  = new byte [filesize];
    InputStream is = sock.getInputStream();
    FileOutputStream fos = new FileOutputStream("source-copyImg2.jpg");
    BufferedOutputStream bos = new BufferedOutputStream(fos);
    bytesRead = is.read(mybytearray,0,mybytearray.length);
    current = bytesRead;
    do {
       bytesRead =
          is.read(mybytearray, current, (mybytearray.length-current));
       if(bytesRead >= 0) current += bytesRead;
    } while(bytesRead > -1);
    bos.write(mybytearray, 0 , current);
    bos.close();
    System.out.println("File was received..");
    sock.close();
}ex Server
public class FileServer{
public static void main (String [] args ) throws IOException {
    ServerSocket servsock = new ServerSocket(13267);
    while (true) {
      System.out.println("Waiting...");
      Socket sock = servsock.accept();
      System.out.println("Accepted connection : " + sock);
      // receive file
      int filesize=6022386;
      int bytesRead;
      int current = 0;
      byte [] mybytearrayIn  = new byte [filesize];
      System.out.println("Try to receive...");
      InputStream is = sock.getInputStream();
      FileOutputStream fos = new FileOutputStream("source-copyImg1.jpg");
      BufferedOutputStream bos = new BufferedOutputStream(fos);
      bytesRead = is.read(mybytearrayIn,0,mybytearrayIn.length);
      current = bytesRead;
      do {
         bytesRead =
            is.read(mybytearrayIn, current, (mybytearrayIn.length-current));
         if(bytesRead >= 0) current += bytesRead;
      } while(bytesRead > -1);
      bos.write(mybytearrayIn, 0 , current);
      long end = System.currentTimeMillis();
      bos.close();
      System.out.println("File was received...");     
      System.out.println("Try to send file...");
      // sendfile
      File myFile = new File ("sourceImg2.jpg");
      byte [] mybytearray  = new byte [(int)myFile.length()];
      FileInputStream fis = new FileInputStream(myFile);
      BufferedInputStream bis = new BufferedInputStream(fis);
      bis.read(mybytearray,0,mybytearray.length);
      OutputStream os = sock.getOutputStream();
      System.out.println("Sending...");
      os.write(mybytearray,0,mybytearray.length);
      os.flush();
      sock.close();
}

Answer 1

ex Client:
public class FileClient{
current = bytesRead;
This assignment is pointless. At this line, bytesRead and 'current' are already both zero.
do {
bytesRead =
is.read(mybytearray, current, (mybytearray.length-current));
if(bytesRead >= 0) current += bytesRead;At this point, if mybytearray.length == current, you are done, and the read will return zero, so you should test for a zero return ...
} while(bytesRead > -1);... not just a -1 return.
ex Server
bis.read(mybytearray,0,mybytearray.length);
Here you are ignoring the result of the read, which can be anything between 0 and mybytearray.length. Don't do that.