Android 使用su命令读取设备中隐藏的文件和文件内容
/**
* 执行 dos 命令
* @param cmd
* @return
*/
public static String execRootCmd(String cmd) { //cmd=cat proc/cmdline `
String result = "";
DataOutputStream dos = null;
DataInputStream dis = null;
try {
Process p = Runtime.getRuntime().exec("su");// 经过Root处理的android系统即有su命令
dos = new DataOutputStream(p.getOutputStream());
dis = new DataInputStream(p.getInputStream());
dos.writeBytes(cmd + "\n");
dos.flush();
dos.writeBytes("exit\n");
dos.flush();
String line = null;
while ((line = dis.readLine()) != null) {
result += line;
}
p.waitFor();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (dos != null) {
try {
dos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (dis != null) {
try {
dis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return result;
}
