TCP协议传输

 /*

*先存在服务器

*/

=================服务器==============

package com.test.tcp;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class TCP_Server {
 public static void main(String[] args) throws IOException {
  ServerSocket ss = new ServerSocket(10086);
  Socket s =ss.accept();
  InputStream is =  s.getInputStream();
  byte[] b = new byte[1024];
  int len = is.read(b);
  String str =new String(b, 0, len);
  System.out.println(str);
  s.close();
 }
}

=================客户端============== 

package com.test.tcp;

import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;

public class TCP_Clinet {
 public static void main(String[] args) throws IOException {
  Socket s= new Socket("localhost", 10086);
  OutputStream os = s.getOutputStream();
  os.write("TCP，你好！".getBytes());
  os.close();
 }

}
======结果====

TCP，你好！