server

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package mailpractice;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

/**
 *
 * @author Heisenberg
 */
public class finalServer {
    private static int workerThreadNo, id;
    public static void main(String[] args) throws IOException {
        workerThreadNo = 0;
        id = 0 ;
        int port = 6789;
        ServerSocket ss = new ServerSocket(port);
        System.out.println("Server Socket at port " + port + " is opened successfully.");

        while(true)
        {
            Socket s = ss.accept();
            finalHTTPWorker worker = new finalHTTPWorker(s, id);
            Thread t = new Thread(worker);
            t.start();
            workerThreadNo++;
            id++;
        }
    }
}




public class finalHTTPWorker implements Runnable {

    private Socket socket;
    InputStream is = null;
    OutputStream os = null;
    int id;

    public finalHTTPWorker(Socket s, int id) throws IOException {
        this.socket = s;
        this.id = id;

        is = s.getInputStream();
        os = s.getOutputStream();
    }

    @Override
    public void run() {
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        PrintWriter pw = new PrintWriter(os);
       // while (true) {
            try {
                String str = br.readLine(), fileName;

                /*GET /ihi.jpg HTTP/1.1*/
//                StringTokenizer tokenizer = new StringTokenizer(str, "/");
//                fileName = tokenizer.nextToken();
//                if (tokenizer.hasMoreTokens()) {
//
//                    fileName = tokenizer.nextToken();
//                }
//
//                fileName = fileName.replace(" HTTP", "");
//
//                if (fileName.equals("")) {
//                    fileName = "index.html";
//                }



                pw.println("HTTP/1.0 200 OK");
                pw.flush();

                System.out.println(br.readLine());

                pw.println("MIME-Version: 1.0");
                pw.flush();
                pw.println("Content-Type: image/png");
                pw.flush();
                System.out.println(br.readLine());


                fileName = "riko.png";

                System.out.println(fileName);
                File file = new File(fileName);
                byte[] content;

                FileInputStream fis = new FileInputStream(file);
                BufferedInputStream bis = new BufferedInputStream(fis);
                OutputStream sendFileStream = os;

                int fileLength = (int) file.length();

                pw.println("Content-Length: " + fileLength);
                pw.flush();

                pw.println("\r\n");
                pw.flush();
                System.out.println(br.readLine());


                long current = 0;

                while (current != fileLength) {
                    int size = 10000;
                    if (fileLength - current >= size) {
                        current += size;
                    } else {
                        size = (int) (fileLength - current);
                        current = fileLength;
                    }

                    content = new byte[size];
                    bis.read(content, 0, size);
                    sendFileStream.write(content);
                    //System.out.println("Hiiii");
                }
                sendFileStream.flush();
                System.out.println("File sent successfully!");

                is.close();
                os.close();


                socket.close();

            } catch (IOException ex) {
                Logger.getLogger(finalHTTPWorker.class.getName()).log(Level.SEVERE, null, ex);

            }
       // }

    }

}