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Thread: Sending xml file over a socket

  1. #1
    Junior Member Kakashi's Avatar
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    Default Sending xml file over a socket

    I have a server and client programs written up and working, but when I try to send a file though a bufferedinput and output streams the file is not sent. The file is created on the serve side but not populated by the info from the xml file on the client side. I dont see what I did wrong am I not flushing something write or using the wrong buffer streaming object?
    here is the client:

    import java.io.*;
    import java.net.*;
    /**
     *
     * @author Kenshin
     */
    public class Client {
     
     public static void main(String[] args) {
     
                BufferedInputStream bis;
                BufferedOutputStream bos;
                int num;
                byte[] byteArray;
                File f = new File("file.xml");
     
            Socket s = null ;
            try{
                  s = new Socket("localhost",8189) ;
                  InputStream inStream = s.getInputStream() ;
                  OutputStream outStream = s.getOutputStream() ;
                  System.out.println("Connected to : " + s);
     
                  BufferedReader inm = new BufferedReader(new InputStreamReader(inStream));
                  PrintWriter out = new PrintWriter(outStream, true /* autoFlush */);
     
                  for (String x : args) {
     
                  out.println(f);
                  long len = f.length();
                  System.out.println(inm.readLine());
                  System.out.println("Sent File length = " + len);
     
                //SENDFILE
                bis = new BufferedInputStream(new FileInputStream(f));
                bos = new BufferedOutputStream(s.getOutputStream( ));
                byteArray = new byte[8192];
                while ((num = bis.read(byteArray)) != -1){
                    bos.write(byteArray,0,num);
                }
     
                 bos.close();
                 bis.close();
     
                System.out.println(inm.readLine());
                  }
            }catch (Exception e) {
                 System.out.println(e) ;
            }
        }
     
    }

    and here is the sever

    import java.io.*;
    import java.net.*;
     
    /**
     *
     * @author Kenshin
     */
    public class Serv {
     
      public static void main(String[] args) {
                BufferedInputStream bis;
                BufferedOutputStream bos;
                int num;
     
             try {
                int i = 1;
                ServerSocket s = new ServerSocket(8189);
                Socket incoming = s.accept();
                System.out.println("Spawning " + i);
     
                try {
                      try{
     
                    InputStream inStream = incoming.getInputStream();
                    OutputStream outStream = incoming.getOutputStream();
     
                    BufferedReader inm = new BufferedReader(new InputStreamReader(inStream));
                    PrintWriter out = new PrintWriter(outStream, true /* autoFlush */);
     
     
     
                    out.println("File received ");
     
                    //RECIEVE and WRITE FILE
                    byte[] receivedData = new byte[8192];
                    bis = new BufferedInputStream(incoming.getInputStream());
                    bos = new BufferedOutputStream(new FileOutputStream("file.xml"));
                    //length = bis.read(receivedData);
                    while ((num = bis.read(receivedData)) != -1){
                    bos.write(receivedData,0,num);
                }
                bos.close();
                bis.close();
     
                File receivedFile = new File("file.xml");
                long receivedLen = receivedFile.length();
                out.println("ACK: Length of received file = " + receivedLen);
                System.out.println("Length of received file = " + receivedLen);
     
                      } finally {
                    incoming.close();
                   }
                } catch (IOException e){
            e.printStackTrace();
            }
                } catch (IOException e1){
            e1.printStackTrace();
            }
     
    }
    }


  2. #2
    mmm.. coffee JavaPF's Avatar
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    Default Re: Sending xml file over a socket

    When I compile this, the contents of file.xml is deleted from the client side and then an exception is thrown.
    I changed the file name to file2.xml on the Serv class but it doesn't get as far as creating the file.
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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  3. The Following User Says Thank You to JavaPF For This Useful Post:

    Kakashi (March 9th, 2011)

  4. #3
    Junior Member Kakashi's Avatar
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    Default Re: Sending xml file over a socket

    I got it now, I used a BufferedReader and read the file into that then send that to printwriter to the server and that worked. Yeah
    I really dont know why the file was being deleated it was bothering me a bit. I even created a file and put it on the server side and then it gave me that the connectinon was refused. Pick server I guse.
    Thanks for the help

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