TCP 멀티스레드 파일 업로드

/*
    
*/
import java.io.*;
import java.net.*;
class  JpgClient
{
	public static void main(String[] args) throws Exception
	{

		Socket s = new Socket("192.168.1.254",10005);

		if(args.length==0)
		{
			System.out.println("  ，     ，  ？");
			return;
		}

		File file = new File(args[0]);
		if(!(file.exists() && file.getName().endsWith(".jpg")))
		{
			System.out.println("     ");
			return ;
		}

		FileInputStream fis = new FileInputStream(args[0]);

		OutputStream out = s.getOutputStream();

		byte[] buf = new byte[1024*2];

		int len = 0;

		while((len=fis.read(buf))!=-1)
		{
			out.write(buf,0,len);
		}

		s.shutdownOutput();

		InputStream in = s.getInputStream();

		byte[] bufIn = new byte[1024];

		int lenIn = in.read(bufIn);

		System.out.println("server:"+new String(bufIn,0,lenIn));

		fis.close();
		s.close();
	}
}

class JpgThread implements Runnable
{
	private Socket s;
	JpgThread(Socket s)
	{
		this.s = s;
	}
	public void run()
	{
		FileOutputStream fos = null;
		try
		{
			int count = 0;
			String ip = s.getInetAddress().getHostAddress();

			System.out.println(ip+"...connect");

			File file = new File(ip+".jpg");
			while(file.exists())
			{
				file = new File(ip+"("+(count++)+").jpg");
			}

			InputStream in = s.getInputStream();

			fos = new FileOutputStream(file);

			byte[] buf = new byte[1024*2];

			int len = 0;
			while((len=in.read(buf))!=-1)
			{
				fos.write(buf,0,len);
			}

			OutputStream out = s.getOutputStream();

			out.write("    ".getBytes());

			
		}
		catch (Exception e)
		{
			System.out.println(e.toString()+"...");
		}
		finally
		{
			try
			{
				if(fos!=null)
					fos.close();
					
				if(s!=null)
					s.close();
			}
			catch (Exception ex)
			{
				System.out.println(ex.toString()+"......");
			}
			
		}
	}
}
class  JpgServer
{
	public static void main(String[] args) throws Exception
	{
		ServerSocket ss = new ServerSocket(10005);

		while(true)
		{
			Socket s = ss.accept();

			new Thread(new JpgThread(s)).start();
		}


	}
}