如何在Laravel中获取文件夹的URL？

I have created a folder named uploads which is on same level as of app folder. How can I use a Laravel helper like URL::to to get the file path in it?

Whilst the comments above are true (the files are not directly accessible by the browser) - you can still provide link access to these files through a function.

The trick is to use php function readfile()

This allows you to then secure the files, and apply permissions to them - i.e. only certain users can access the files, users can only access their own files etc.

This is an example of one way you can allow a logged in user to access a file

A route like this:

Route::get('/view/{$file}', ['as' => 'viewfile', function($file) {
     // Ensure no funny business names to prevent directory transversal etc.
     $file = str_replace ('..', '', $file);
     $file = str_replace ('/', '', $file);

     // now do the logic to check user is logged in
     if (Auth::check())
     {
            // Serve file via readfile() - we hard code the user_ID - so they
            // can only get to their own files
           readfile('../uploads/'.Auth::user()->id.'/'.$file);
     }
}]);

Then in a view file somewhere you can link to the file like this:

<p>Here is a link to your file: {{ URL::route('viewfile', ['your_file_name.jpg']) }}</p>