Question

我有一个应用程序通过端口22与硬件进行通信。该应用程序一直工作到本月。现在，每当应用程序尝试连接到硬件时，我都会收到套接字通信错误，程序最终崩溃，因为套接字无法连接。

W/System.err: java.net.SocketException: Software caused connection abort

我能想到的唯一改变的是我在手机上运行了最新的Android更新。硬件的代码与我过去几个月一直在测试的代码相同，并且应用程序的代码自3月底以来已经完成。最新更新中是否有更改可能导致套接字异常？

套接字通信由服务管理。设置它的代码是：

 public int onStartCommand(Intent intent, int flags, int startId) {
    Log.i(TAG, "onStartCommand");

    super.onStartCommand(intent, flags, startId);

    if (CheckConnectionStatus()){
        ConnectSocket();
        Log.i(TAG, "Connected To ATP");
    } else {
        Log.i(TAG, "Not Connected To ATP");
    }

    return START_STICKY;
}
    /*******************************************************************************
 *
 *     Check if phone is connected to ATP
 */

public Boolean CheckConnectionStatus(){
    //if connected to proper network, change indicators
    String ssid = "";

    WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
    WifiInfo wifiInfo = wifiManager.getConnectionInfo();
    if(wifiInfo.getSupplicantState() == SupplicantState.COMPLETED){
        ssid = wifiInfo.getSSID();
    }

    String networkSSID = "\"ATP45\"";

    return ssid.equals(networkSSID);
}

/***********************************************************************
 *  Setup the socket connection
 */

public void ConnectSocket(){
    Log.i(TAG, "Running ConnectSocket");

    socket = new Socket();
    Runnable connectSocket = new SetUpSocketConnection();
    communicationThread = new CommunicationThread();
    new Thread(connectSocket).start();
}

/**********************************************************************
 *  Thread to open socket communication
 */

private class SetUpSocketConnection implements Runnable{
    @Override
    public void run(){
        try{
            //ERROR IS HERE:
            socket.connect(new InetSocketAddress(IP_ADDRESS, PORT));

            writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);
            socket.setSoTimeout(800);

            inputStream = socket.getInputStream();
            reader = new BufferedReader(new InputStreamReader(inputStream), 1000);

            Log.d(TAG, "Connected to Socket");
            communicationThreadRunning = true;
            new Thread(communicationThread).start();
        } catch (IOException e){
            e.printStackTrace();
        }
    }
}

编辑：导致错误的行是首次连接套接字的地方：

socket.connect(new InetSocketAddress(IP_ADDRESS, PORT));

编辑2：完整堆栈跟踪

W/System.err: java.net.SocketException: Software caused connection abort
W/System.err:     at java.net.PlainSocketImpl.socketConnect(Native Method)
W/System.err:     at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:334)
W/System.err:     at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:196)
W/System.err:     at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178)
W/System.err:     at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:356)
W/System.err:     at java.net.Socket.connect(Socket.java:586)
W/System.err:     at java.net.Socket.connect(Socket.java:535)

2017年4月更新后的Android套接字通信

0 个答案: