1 //聊天软件项目TCP升级版 2 import java.io.*; 3 import java.net.*; 4 class TcpClient2  5 { 6     public static void main(String[] args)throws Exception  7     { 8         Socket s = new Socket("192.168.1.254",10004); 9         OutputStream out = s.getOutputStream();10         out.write("服务端，你好".getBytes());11         InputStream in = s.getInputStream();12         byte[] buf = new byte[1024];13         int len = in.read(buf);14         System.out.println(new String(buf,0,len));15         s.close();16     }17 }18 19 20 class TcpServer221 {22     public static void main(String[] args) throws Exception23     {24         ServerSocket ss = new ServerSocket(10004);25         Socket s = ss.accept();26         String ip = s.getInetAddress().getHostAddress();27         System.out.println(ip+"....connected");28         InputStream in = s.getInputStream();29         byte[] buf = new byte[1024];30         int len = in.read(buf);31         System.out.println(new String(buf,0,len));32         OutputStream out = s.getOutputStream();33         Thread.sleep(10000);34         out.write("哥们收到,你也好".getBytes());35         s.close();36         ss.close();37     }38 }