TCP传送数据

1. 创建客户端的Socket对象

   Socket（String host，int port）

2. 获取输出流OutPutStream

   OutPutStream getOutPutStream()

3. 写数据

   getOutPutStream().write()

4. 释放资源

   close

   public class SendDemo {
       public static void main(String[] args) throws IOException {
           Socket s=new Socket("192.168.101.1",12345);
           OutputStream outputStream = s.getOutputStream();
           outputStream.write("hello,world".getBytes());
           outputStream.close();
       }
   }

    

TCP接收数据

1. 创建服务器端ServerSocke对象

   ServerSocket(int port)

2. 监听客户端连接，返回一个Socket对象

   Socket accpet()

3. 获取输入流InputStream

   InputStream getInputStream()

4. 释放资源

   close

   public class ReceiveDemo {
       public static void main(String[] args) throws IOException {
           ServerSocket s = new ServerSocket(12345);
           Socket socket = s.accept();
           InputStream inputStream = socket.getInputStream();
           byte[] b = new byte[1024];
           int len = inputStream.read(b);
   //        while((len=inputStream.read())!=-1){
   //            String s1 = new String(b, 0, len);
   //            System.out.println("数据是"+s1);
   //        }
           String s1 = new String(b, 0, len);
           System.out.println("数据是" + s1);
           socket.close();
           inputStream.close();
       }
   }

    

5.