一、一個簡單的socket通信實例（TCP）

 

目錄

 

1.服務端代碼

 2.客戶端代碼

---

1.服務端代碼

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

/**
 * 類功能描述：先啓動服務器端，再啓動客戶端
 *
 * @author：***
 * @createTime：2018/11/5 16:02
 */
public class Server {

    public static void main(String[] args) {
        try {
            //1.創建服務器socket  指定監聽端口
            ServerSocket serverSocket = new ServerSocket(18080);
            //2.調用accept()開始監聽，等待客戶的連接
            System.out.println("---------服務器即將啓動，等待客戶端連接---------");
            Socket socket = serverSocket.accept();
            //3.讀取客戶端發送信息
            BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            System.out.println("接收到客戶端發送的消息爲：" + br.readLine());
            socket.shutdownInput();
            //4.推送客戶端請求
            PrintWriter pw = new PrintWriter(socket.getOutputStream());
            pw.write("response");
            pw.flush();
            socket.shutdownOutput();
            //5.關閉連接
            br.close();
            pw.close();
            socket.close();
            serverSocket.close();

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

}

 2.客戶端代碼

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

/**
 * 類功能描述：客戶端
 *
 * @author：***
 * @createTime：2018/11/5 16:03
 */
public class Client {

    public static void main(String[] args) {
        try {
            //1.創建客戶端socket，指定服務器地址和端口
            Socket socket = new Socket("127.0.0.1", 18080);
            //2.向服務器發送信息
            PrintWriter pw = new PrintWriter(socket.getOutputStream());
            pw.write("request");
            pw.flush();
            socket.shutdownOutput();
            //3.讀取服務器推送信息
            BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            System.out.println("接收到服務器推送的消息爲：" + br.readLine());
            socket.shutdownInput();
            //4.關閉連接
            br.close();
            pw.close();
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}