序言:

1.知道局域网络对战,但是想在局域网全球的网络下进行的游戏的。却一直没有思路。最近同为学习的朋友,找了很多资料弄明白了怎么去连接云服务器上运行的监听代码。

2.前提:需要一个云服务器;

 

1.服务端设置:云服务器需要设置出、入规则

入方向规则,开放端口8088

 

 

 出方向规则,开放端口 8088 

 

上述两步完成后,相当于我们把指定的端口打开了;

2.找到自己的服务器的两个ip

  公网ip : 1.1.1.1

  私网ip : 172.1.1.1

3.编写的服务端:GreetingServer .java

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

public class GreetingServer extends Thread{
    private ServerSocket serverSocket;

    public GreetingServer(int port) throws IOException{
        InetAddress adr = Inet4Address.getByName("服务器的私网ip");
        serverSocket = new ServerSocket(port,50,adr); //port 指的是端口号 8088
        serverSocket.setSoTimeout(50000);
    }

    public void run(){
        while(true){
           try {
            System.out.println("waitting link:"+serverSocket.getLocalSocketAddress() +"--->"+ serverSocket.getLocalPort()+"...");
            
            Socket server =serverSocket.accept();

            System.out.println("server host adress:"+server.getRemoteSocketAddress());
            
            DataInputStream in = new DataInputStream(server.getInputStream());
            System.out.println(in.readUTF());
            
            DataOutputStream out = new DataOutputStream(server.getOutputStream());
            out.writeUTF("Thinks connect me:"+ server.getLocalSocketAddress() +"\n Goodbye!");

            server.close();

            } catch (SocketTimeoutException s) {
                //TODO: handle exception
                System.out.println("Socket timed out!");
                break;
            }catch(IOException e){
                e.printStackTrace();
                break;
            }
        }
    }

    public static void main(String[] args) {
        int port = Integer.parseInt(args[0]);
        try {
            Thread t = new GreetingServer(port);
            t.run();
        } catch (Exception e) {
            //TODO: handle exception
            e.printStackTrace();
        }
    }
}

 

4.编写客户端代码  GreetingClient.java

import java.net.*;

import java.io.*;

public class GreetingClient{
    
    public static void main(String[] args) {
        String serverName = args[0];
        int port = Integer.parseInt(args[1]);
        try {
            System.out.println("link host:"+serverName +",port:"+port);
            Socket client = new Socket(serverName,port);
            System.out.println(" Sever host adress:"+client.getRemoteSocketAddress());

            OutputStream outToServer =client.getOutputStream();
            DataOutputStream out  = new DataOutputStream(outToServer);

            out.writeUTF("Hello Form "+ client.getLocalSocketAddress());

            InputStream inFromServer = client.getInputStream();
            DataInputStream in = new DataInputStream(inFromServer);
            System.out.println("Sever CallBack :"+in.readUTF());
            client.close();
        } catch (Exception e) {
            //TODO: handle exception
            e.printStackTrace();
        }
    }
}

 5.执行代码

//服务端  (需要安装java sdk)
# javac GreetingServer.java //编译代码
# java GreetingServer 8088 //执行代码


//客服端 (同样也需要java sdk)
#javac GreetingClient.java
#java  GreetingClient 公网ip 8088

6.输出内容如下

 

 

 

 

内容点两个

1.客服端 使用公网 ip 和指定端口号进行访问

2.服务端 使用私网ip 和端口号设置

3.修改安全组,开放指定 端口和ip的出入

 

posted on 2022-08-28 21:36  冷榷  阅读(157)  评论(0编辑  收藏  举报