Java实现tcp

Tcp协议

importjava.io.IOException;

importjava.net.Socket;

importjava.net.UnknownHostException;

 

importorg.omg.CORBA.portable.OutputStream;

 

public classTCPClientDemo {

 

      public static void main(String[] args) {

           //1.建立TCP连接；1）IP地址；2）端口号

          

          

           String ip="172.18.21.133";

           int port=2425;

         Socket sck=new Socket(ip,port);

     

     

 

      //2.传输数据

      String content="admin";

      byte[] bstream=content.getBytes();

      OutputStream os=content.getOutputStream();

      os.write(bstream);

     

     

      //3.关闭

      sck.close();

}

}