英特尔爱迪生：无法与我的笔记本电脑建立套接字连接

Question

我是英特尔爱迪生编程的新手。我设置了我的设备并通过Wi-Fi将其连接到我的本地网络。我使用以下代码创建ServerSocket：

public class SensorServer {

    ServerSocket serverSocket;
    Socket client;
    int port;

    public SensorServer(int port) {
        this.port = port;
    }

    private void waitForConnectionAndConnect() throws IOException {
        serverSocket = new ServerSocket(port);
        System.out.println("***** Server: Wait for connection");

        client = serverSocket.accept();
        System.out.println("***** Server: Connected!");

        while(!client.isConnected())
            ;
        System.out.println("***** Server started successfully!");

    }

    // Helper method for closing the TCP connections
    private void closeConnections() throws IOException {
            client.close();
            serverSocket.close();
    }

    // Helper method to send a message via one of TCP sockets
    private void sendSensorData(SensorData sensorData, ObjectMapper om) throws IOException {
        String json = om.writeValueAsString(sensorData);
        PrintWriter printWriter;
        printWriter = new PrintWriter(client.getOutputStream(), true);
        printWriter.print(json + "\n");
        printWriter.flush();
    }

    public static void main(String[] args) {
        try {
            SensorServer server = new SensorServer(1234);
            server.waitForConnectionAndConnect();

            System.out.println("Connected!!!");

            ObjectMapper om = new ObjectMapper();

            for(int i = 0; i < 10; i++) {
                SensorData sd = server.generateSensorDataRandomly();
                server.sendSensorData(sd, om);
                Thread.sleep(2000);
            }

            server.closeConnections();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private SensorData generateSensorDataRandomly() {
        ...
    }



}

此服务器套接字似乎已成功创建，因为我没有任何例外。当我尝试从我的PC连接到我的爱迪生时，我得到Connection Refused: Connect例外。这是客户端代码：

public class ClientClass {

    public static void main(String[] args) { 
            Socket socket = null; 
            try { 
                socket = new Socket("edison-public-ip", 1234); 

                OutputStream raus = socket.getOutputStream(); 
                PrintStream ps = new PrintStream(raus, true); 
                ps.println("Hallo Welt!"); 

                InputStream rein = socket.getInputStream(); 
                System.out.println("verfügbare Bytes: " + rein.available()); 
                BufferedReader buff = new BufferedReader(new InputStreamReader(rein)); 

                while (buff.ready()) { 
                    System.out.println(buff.readLine()); 
                } 

            } catch (UnknownHostException e) { 
                System.out.println("Unknown Host..."); 
                e.printStackTrace(); 
            } catch (IOException e) { 
                System.out.println("IOProbleme..."); 
                e.printStackTrace(); 
            } finally { 
                if (socket != null) 
                    try { 
                        socket.close(); 
                        System.out.println("Socket geschlossen..."); 
                    } catch (IOException e) { 
                        System.out.println("Socket nicht zu schliessen..."); 
                        e.printStackTrace(); 
                    } 
            } 

    }
}

这是我的例外：

java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.<init>(Unknown Source)
    at java.net.Socket.<init>(Unknown Source)
    at test.main(ClientClass.java:15)

当我尝试将两台笔记本电脑相互连接时，代码工作正常！

编辑：在我的主板上编辑了iptables，仍然没有成功

我添加了两条规则，允许所有传入和传出的流量通过iptables：

进入我的主板

iptables -F // Remove all rules
iptables -A INPUT -j ACCEPT
iptables -A OUTPUT -j ACCEPT

但仍然有例外！