Android在代码中执行shell命令，针对root命令

public void runRootCommand(String command) {

Process process = null;
DataOutputStream dataOutputStream = null;
DataInputStream dataInputStream = null;
StringBuffer wifiConf = new StringBuffer();
try {
process = Runtime.getRuntime().exec("su");
dataOutputStream = new DataOutputStream(process.getOutputStream());
dataInputStream = new DataInputStream(process.getInputStream());
dataOutputStream
.writeBytes(command+"\n");
dataOutputStream.writeBytes("exit\n");
dataOutputStream.flush();
InputStreamReader inputStreamReader = new InputStreamReader(
dataInputStream, "UTF-8");
BufferedReader bufferedReader = new BufferedReader(
inputStreamReader);
String line = null;
while ((line = bufferedReader.readLine()) != null) {
wifiConf.append(line);
}
bufferedReader.close();
inputStreamReader.close();
process.waitFor();
Log.d("shell命令执行结果：",process.exitValue()+"");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (dataOutputStream != null) {
dataOutputStream.close();
}
if (dataInputStream != null) {
dataInputStream.close();
}
process.destroy();
} catch (Exception e) {
e.printStackTrace();
}
}
}

process.exitValue()返回0时表明shell命令执行成功