When I enter short url how to redirect it to the corresponding long url after retrieving the original url from server or else on page displaying url doesn't exit.
For example for a given long url
www.mysite.com/very-long-url
I have it's short url link in database
www.mysite.com/shortUrl
Now when I enter www.mysite.com/shortUrl I should get redirected to long url address and if it doesn't exist then to a page www.mysite.com/error.