Java Socket TCP编程

 package com;

 import java.io.*;
 import java.net.ServerSocket;
 import java.net.Socket;

 /**
  * Socket Server
  * <p>
  * Created by Administrator on 2018/5/2.
  */
 public class Server {

     public static void main(String[] args) {

         try {

             // 1.初始化服务端socket连接，并监听8888端口的socket请求
             ServerSocket serverSocket = new ServerSocket(8888);

             System.out.println("****** I am Server, now begin to wait the client ******");
             Socket socket = serverSocket.accept();

             // 2.server接收消息
             InputStream inputStream = socket.getInputStream();
             InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
             BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

             String str;
             if ((str = bufferedReader.readLine()) != null) {
                 System.out.println("I am Server, now get message from Client: " + str);
             }
             socket.shutdownInput();

             // 3.server发送消息
             OutputStream outputStream = socket.getOutputStream();
             PrintWriter printWriter = new PrintWriter(outputStream);
             printWriter.write("[welcome to you!]");
             printWriter.flush();

             // 4.关闭资源
             printWriter.close();
             outputStream.close();

             bufferedReader.close();
             inputStreamReader.close();
             inputStream.close();
             socket.close();
             serverSocket.close();

         } catch (IOException e) {
             e.printStackTrace();
         }
     }

 }

 package com;

 import java.io.*;
 import java.net.Socket;

 /**
  * Socket Client
  * <p>
  * Created by Administrator on 2018/5/2.
  */
 public class Client {

     public static void main(String[] args) {

         try {

             // 1.初始化客户端socket连接
             Socket socket = new Socket("localhost", 8888);

             // 2.client发送消息
             OutputStream outputStream = socket.getOutputStream();
             PrintWriter printWriter = new PrintWriter(outputStream);
             printWriter.write("[name:tom, pwd:123]");
             printWriter.flush();
             socket.shutdownOutput();

             // 3.client接收消息
             InputStream inputStream = socket.getInputStream();
             InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
             BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
             String str;
             while ((str = bufferedReader.readLine()) != null) {
                 System.out.println("I am Client, now get message from Server:" + str);
             }

             // 4.关闭资源
             bufferedReader.close();
             inputStreamReader.close();
             inputStream.close();

             printWriter.close();
             outputStream.close();
             socket.close();

         } catch (IOException e) {
             e.printStackTrace();
         }
     }
 }