android程序执行adb shell命令

final String FILE_NAME = "cat data/misc/wifi/wpa_supplicant.conf";

if(DEBUG) Log.d("chenshichun"," "+this.getClass().getCanonicalName()+" ::::::::: exec(FILE_NAME)::"+ exec(FILE_NAME));

private String exec(String command) {
try {
Process process = Runtime.getRuntime().exec(command);
BufferedReader reader = new BufferedReader(
new InputStreamReader(process.getInputStream()));
int read;
char[] buffer = new char[4096];
StringBuffer output = new StringBuffer();
while ((read = reader.read(buffer)) > 0) {
output.append(buffer, 0, read);
}
reader.close();
process.waitFor();
return output.toString();
} catch (IOException e) {
throw new RuntimeException(e);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

chmod 777 /data/misc/wifi/wpa_supplicant.conf

RootTools.isRootAvailable()