TCP网络连接通信

TCP通信

1、client与service的链接核心内容

client:

Socket socket = new Socket(InetAddress.getLocalHost(), 7788);//ip地址和套接字

server:

ServerSocket ss = new ServerSocket(7788); //定义服务器的套接字

Socket client = ss.accept();

2、数据的传输：

发送端：

OutputStream out = client.getOutputStream();

out.write(("欢迎您！").getBytes());

接受端：

InputStream in = socket.getInputStream();

byte[] but = new byte[1024];

int len = in.read(but);

System.out.println(new String(but , 0 ,len));

3、通信例子

client：

public class TCPClient {

      public static void main(String[] args) {

            try {

                  Socket socket = new Socket(InetAddress.getLocalHost(), 7788);

                  

                  InputStream in = socket.getInputStream();

                  byte[] but = new byte[1024];

                  int len = in.read(but);

                  System.out.println(new String(but , 0 ,len));

                  in.close();

                  socket.close();

                  

            } catch (UnknownHostException e) {

                  // TODO Auto-generated catch block

                  e.printStackTrace();

            } catch (IOException e) {

                  // TODO Auto-generated catch block

                  e.printStackTrace();

            }

      }

}

server：

public class TCPServer {

      public static void main(String[] args) {

            try {

                  ServerSocket ss = new ServerSocket(7788);

                  Socket client = ss.accept();

          

                  OutputStream out = client.getOutputStream();

                  out.write(("欢迎您！").getBytes());

                  

                  out.close();

                  client.close();

                  

            } catch (IOException e) {

                  // TODO Auto-generated catch block

                  e.printStackTrace();

            }

      }   

}