Question

我在使用静态IP的Google计算引擎上运行套接字服务器，以及我如何启动服务器：

public class Server {

private static int port=4800;

public static void main(String argv[]) throws Exception {
    System.out.println("STARTED ON PORT 4800!");

    @SuppressWarnings("resource")
    ServerSocket socketIn = new ServerSocket(port);

    while (true) {
        Socket socketConenection = socketIn.accept();
        Thread t = new Thread(new ServerThread(socketConnection, connection));
        t.start();
    }
}

}

public static BufferedReader conectServer(String body, String function) throws IOException {
    Socket socketClient = new Socket(ipServer, portServer);
    DataOutputStream outToServer = new DataOutputStream(socketClient.getOutputStream());
    BufferedReader fromServer = new BufferedReader(new InputStreamReader(socketClient.getInputStream()));
    outToServer.writeBytes(function+ '\n' + body + '\n');
    return fromServer;
}

因此，使用我的Android应用程序，我尝试连接到服务器，它在我的家用电脑上运行正常，但是当我尝试连接到我的Google Compute Engine VM时，它会超时：

java.net.ConnectException: failed to connect to /146.148.66.128 (port 4800): connect failed: ETIMEDOUT (Connection timed out)

Answer 1

很抱歉，如果这很明显，但您open the firewall on the GCE VM了吗？

默认情况下，GCE虚拟机除了从互联网上阻止SSH之外的所有流量。

谷歌计算引擎+套接字

1 个答案: