我有一个控制器，它从Twig获取字符串boolean mobileDataEnabled = false; // Assume disabled
ConnectivityManager cm = (ConnectivityManager) getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);
try {
Class cmClass = Class.forName(cm.getClass().getName());
Method method = cmClass.getDeclaredMethod("getMobileDataEnabled");
method.setAccessible(true); // Make the method callable
// get the setting for "mobile data"
mobileDataEnabled = (Boolean)method.invoke(cm);
Log.e("mobileDataEnabled",mobileDataEnabled+"");
} catch (Exception e) {
// Some problem accessible private API
// TODO do whatever error handling you want here
}
作为参数：
hashId class UserController extends AbstractController
{
/**
* @Route("/user/{hashId}", name="user_read", methods="GET")")
* @Entity("user", class="App\Entity\User", expr="repository.findOneByHashId(hashId)")
*/
public function read(User $user, Request $request): Response
{
return $this->render('user.html.twig', [
'user' => $user,
]);
}
}
在hashId中解码并传递到UserRepository.php：
findOneBy()但是，我收到此错误：“无法猜测如何从参数“用户”的请求信息中获取Doctrine实例。 这里可能有什么问题？谢谢