Posted on 2003-03-02
Medium Priority
Last Modified: 2011-09-20
Hello all,

Can anyone give me the code on how to send a file or just stream 2MB over a socket??

Question by:aknight_sa
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LVL 86

Accepted Solution

CEHJ earned 200 total points
ID: 8051418
 class FileSender {
    final int BUF_SIZE = 4096;
    Socket socket;
    OutputStream out;

    public FileSender(Socket socket) {
      this.socket = socket;

    public boolean sendFile(String fileName) {
      FileInputStream from = null;
      try {
        int bytesRead = 0;
        from = new FileInputStream(fileName);
        out = new BufferedOutputStream(socket.getOutputStream());
        byte[] buffer = new byte[BUF_SIZE];
        while((bytesRead = from.read(buffer)) != -1) // Read bytes until EOF
          out.write(buffer, 0, bytesRead);            //   write bytes
      // Always close the streams, even if exceptions were thrown
      catch (IOException e) {
        return false;
      finally {
        if (from != null) try { from.close(); } catch (IOException e) { ; }
        if (out != null) try { out.close(); } catch (IOException e) { ; }
        if (socket != null) try { socket.close(); } catch (IOException e) { ; }
      return true;
LVL 23

Expert Comment

ID: 8051428
The code below reads data from a file and writes it over a socket:-

InputStream in = new FileInputStream("file");
OutputStream out = socket.getOuputStream();
final int CHUNK_SIZE = 1024;
byte buff[] = new byte[CHUNK_SIZE];
int read = in.read(buff, 0, CHUNK_SIZE);
while(read>0) {
    out.write(buff, 0, read);
    read = in.read(buff, 0, CHUNK_SIZE);

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