深入浅析java中TCP与UDP的区别

public class TCPServer {  public static void main(String[] args){      try{        ServerSocket server=new ServerSocket();        SocketAddress address=new InetSocketAddress(InetAddress.getLocalHost(),10001);        server.bind(address);        System.out.println("等待连接客户端...");        Socket client = server.accept();        System.out.println("connected with"+client.getRemoteSocketAddress());        PrintWriter socketOut = new PrintWriter(client.getOutputStream());        System.out.println("等待客户端的消息...");        byte buf[] = new byte[1024];        if ( client.getInputStream().read(buf) > 0 ) {          System.out.println("收到的消息: " + new String(buf));        }        System.out.println("发送消息给客户端...");        String sendStr = "服务器返回的信息";        socketOut.write(sendStr);        socketOut.flush();        socketOut.close();        client.close();        server.close();      }catch (IOException e) {        System.out.println(e.getMessage());        e.printStackTrace();      }  }}