Laravel 5.2在本地空白屏幕，但它在php工匠服务执行不能在http：// localhost / projectname / public /

I've use php artisan serve command the project has loaded successfully in laravel 5.2 but if i load http://localhost/projectname/public/ it has shown blank white page.

How can I run my laravel 5.2 app using http://localhost/mydemo/public/ this url

You should set up your web server so public directory would be set up as root directory.

For example, you're using Apache, you should do something like this:

<VirtualHost *:80>
  ServerName myapp.localhost.com
  DocumentRoot "/home/vagrant/projects/myapp/public"
  <Directory "/home/vagrant/projects/myapp/public">
    AllowOverride all
  </Directory>
</VirtualHost>

And don't forget to restart your web server after you do this.

Try running the PHP built-in sever directly from your public directory. You can check the PHP doc page for more details, but you should be able to cd into your mydemo/public directory and run php -S localhost:8000. Then open localhost:8000 in your browser to view the page. If you haven't made any changes to your routes.php file, then the default Laravel welcome page should display.

If that doesn't work, I recommend watching the episode 1 and 2 of the latest Laravel From Scratch series on Laracasts. Jeffrey walks you through all of the setup and uses 'php artisan serve' early in episode 2 to load the built-in server.