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我们有一些使用 DUN 配置文件通过蓝牙连接到手机的旧硬件。然后它发出 AT 命令来读取 SMS 以进行监控。

Android 手机不支持 AT over DUN。这就是我写这个应用程序的原因。问题是：虽然旧硬件将连接到手机，但它不会接受我对其命令的响应。具体来说，它似乎不接受我对 AT+CGMI 命令的回答。我认为我对 CR 和 LF 控制字符的使用有问题，但我不知道发生了什么。

这是一个示例聊天记录：

10-14 14:14:49.674: DEBUG/PROG(2663): Server started, object is android.bluetooth.BluetoothServerSocket@44f102f8
10-14 14:17:07.264: DEBUG/PROG(2663): From Device:ATE0
10-14 14:17:07.264: DEBUG/PROG(2663): To Device: 
10-14 14:17:07.264: DEBUG/PROG(2663): OK
10-14 14:17:07.868: DEBUG/PROG(2663): From Device:ATE0
10-14 14:17:07.868: DEBUG/PROG(2663): To Device: 
10-14 14:17:07.868: DEBUG/PROG(2663): OK
10-14 14:17:10.774: DEBUG/PROG(2663): From Device:AT+CGMI
10-14 14:17:10.774: DEBUG/PROG(2663): To Device: 
10-14 14:17:10.774: DEBUG/PROG(2663): "Sony Ericsson"
10-14 14:17:10.774: DEBUG/PROG(2663): 
10-14 14:17:10.774: DEBUG/PROG(2663): OK
10-14 14:17:11.434: DEBUG/PROG(2663): From Device:ATE0
10-14 14:17:11.434: DEBUG/PROG(2663): To Device: 
10-14 14:17:11.434: DEBUG/PROG(2663): OK
10-14 14:17:12.025: DEBUG/PROG(2663): From Device:ATE0
10-14 14:17:12.025: DEBUG/PROG(2663): To Device: 
10-14 14:17:12.025: DEBUG/PROG(2663): OK
10-14 14:17:14.827: DEBUG/PROG(2663): From Device:AT+CGMI
10-14 14:17:14.827: DEBUG/PROG(2663): To Device: 
10-14 14:17:14.827: DEBUG/PROG(2663): "Sony Ericsson"
10-14 14:17:14.827: DEBUG/PROG(2663): 
10-14 14:17:14.827: DEBUG/PROG(2663): OK
10-14 14:17:15.454: DEBUG/PROG(2663): From Device:ATE0
10-14 14:17:15.454: DEBUG/PROG(2663): To Device: 
10-14 14:17:15.454: DEBUG/PROG(2663): OK
10-14 14:17:16.084: DEBUG/PROG(2663): From Device:ATE0
10-14 14:17:16.084: DEBUG/PROG(2663): To Device: 
10-14 14:17:16.084: DEBUG/PROG(2663): OK
10-14 14:17:18.444: DEBUG/PROG(2663): IOException: all aboard the failboat!
10-14 14:17:18.444: DEBUG/PROG(2663): java.io.IOException: Connection reset by peer
10-14 14:17:18.444: DEBUG/PROG(2663):     at android.bluetooth.BluetoothSocket.readNative(Native Method)
10-14 14:17:18.444: DEBUG/PROG(2663):     at android.bluetooth.BluetoothSocket.read(BluetoothSocket.java:307)
10-14 14:17:18.444: DEBUG/PROG(2663):     at android.bluetooth.BluetoothInputStream.read(BluetoothInputStream.java:96)
10-14 14:17:18.444: DEBUG/PROG(2663):     at java.io.InputStreamReader.read(InputStreamReader.java:275)
10-14 14:17:18.444: DEBUG/PROG(2663):     at java.io.BufferedReader.fillBuf(BufferedReader.java:155)
10-14 14:17:18.444: DEBUG/PROG(2663):     at java.io.BufferedReader.readLine(BufferedReader.java:404)

当设备重置连接时会发生异常。

这是一些代码：

private static final String REPLY_OK = "\r\nOK\r\n";
private static final String REPLY_MANUFACTURER = "\r\n\"Sony Ericsson\"\r\n\r\nOK\r\n";
private static final String ECHO_OFF = "ATE0";
private static final String GET_MANUFACTURER = "AT+CGMI";
public static String handleCommand(String command) {

if (command.equals(ECHO_OFF)) {
   return REPLY_OK;
} else if (command.equals(GET_MANUFACTURER)) {
   return REPLY_MANUFACTURER;
}
// base case
return REPLY_OK;
}
// bts is a BluetoothSocket instance
OutputStream out = this.bts.getOutputStream();
InputStream is = this.bts.getInputStream();
InputStreamReader isr  = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String currentLine = null;
while ((currentLine = br.readLine()) != null) {
    Log.d(LOGTAG, "From Device:" +  currentLine);
    String response = handleCommand(currentLine);
    Log.d(LOGTAG, "To Device: " + response);
    out.write(response.getBytes("ASCII"));
    //out.flush();
}
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1 回答 1

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如何扭转局面并使用 android 设备来模拟传统硬件设备，连接到传统蓝牙手机，并对该手机给出的响应进行十六进制转储？

或者也许你甚至可以使用安卓手机制作一种中间人代理并记录和十六进制转储整个交换？

于 2010-10-14T15:57:05.317 回答