TCP協議網絡通訊案例（http協議）

1、創建TcpServer（tcp服務端）

package com.cppdy.tcp;

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

//tcp服務端
public class TcpServer {

    public static void main(String[] args) throws
 
 Exception {

        System.out.println("tcp服務端啟動啦……");
        ServerSocket serverSocket = new ServerSocket(8080);
        try {
            // 會阻塞在這裏，等待連接
            Socket accept = serverSocket.accept();

            InputStream inputStream = accept.getInputStream();

            byte[] bytes = new
 
 byte[1024];

            int length = inputStream.read(bytes);

            String result = new String(bytes, 0, length);

            System.out.println("服務端接收到客戶端發送的消息：" + result);

            OutputStream outputStream = accept.getOutputStream();

            PrintWriter printWriter = new PrintWriter(outputStream);

            printWriter.println(
 
"服務器收到消息了，這是服務器自動反饋……");

            printWriter.flush();

            accept.shutdownOutput();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            serverSocket.close();
        }
    }

}

2、創建TcpClient（tcp客戶端）

package com.cppdy.tcp;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.Socket;

//tcp客戶端
public class TcpClient {

    public static void main(String[] args) throws Exception {

        Socket socket = new Socket("127.0.0.1", 8080);

        try {
            OutputStream outputStream = socket.getOutputStream();

            String msg = "吹泡泡的魚";

            outputStream.write(msg.getBytes());

            System.out.println("客戶端發送消息完畢……");

            InputStream inputStream = socket.getInputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));

            String result = br.readLine();

            System.out.println("客戶端==》服務器返回的結果：" + result);
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            socket.close();
        }
    }

}

Socket網絡編程（三）