Android App请求获取Root权限

        Process process = null;        DataOutputStream os = null;        try {            String cmd = "chmod 777 " + getPackageCodePath();            process = Runtime.getRuntime().exec("su"); // 切换到root帐号            os = new DataOutputStream(process.getOutputStream());            os.writeBytes(cmd + "\n");            os.writeBytes("exit\n");            os.flush();            process.waitFor();        } catch (Exception e) {            // return false;        } finally {            try {                if (os != null) {                    os.close();                }                process.destroy();            } catch (Exception e) {            }        }

来源：http://www.cnblogs.com/xiangism/archive/2012/07/20/2601127.html