关于Socket Connection reset 问题

public class Chat extends Thread {

	private Socket socket;



	public Chat(int count, Socket socket, List<Socket> socketList) {

		this.socket = socket;

	}



	public void run() {

		BufferedReader reader = null;

		PrintWriter writer = null;

		try {

			reader = new BufferedReader(new InputStreamReader(

					socket.getInputStream()));

			String message = "";

			SimpleDateFormat df = new SimpleDateFormat("HH:mm:ss");

			//socket.setSoTimeout(10000);

			while (true) {

				message = reader.readLine();    ========此处为41行=======

				// 接收到客户端的bye信息，客户端即将退出，并将bye写入到该客户端

				if (null==message) {

					SocketTest3Server.count--;

					System.out.println( SocketTest3Server.count+ " null下线 " );

					SocketTest3Server.socketList.remove(socket);

					//new Chat(count, socket, socketList).run();

					break;

				}

				// 向所有的客户端发送接收到信息，实现群聊

				for (int i = 0; i < SocketTest3Server.socketList.size(); i++) {

					writer = new PrintWriter(SocketTest3Server.socketList.get(i).getOutputStream());

					String username=message.substring(0,message.indexOf("#$*"));

					String messages=message.substring(message.indexOf("#$*")+3,message.length());

					messages=SensitiveUtils.doFilter(messages);

					writer.println("{\"talk\":{\"username\":\""+username +"\",\"time\":\""+df.format(new Date())+ "\",\"message\":\"" + messages+"\"},\"image\":[]}");

					//System.out.println("{\"talk\":{\"username\":\""+username +"\",\"time\":\""+df.format(new Date())+ "\",\"message\":\"" + messages+"\"},\"image\":[]}");

					writer.flush();

				}

			}

			

		} catch (Exception e) {

			SocketTest3Server.count--;

			System.out.println( SocketTest3Server.count+ " Exception下线 " );

			SocketTest3Server.socketList.remove(socket);

			//new Chat(SocketTest3Server.count, socket, SocketTest3Server.socketList).run();

			e.printStackTrace();

		}

	}

}