So far we have been looking at the general scopes that are available to get information from the server and environment, in addition to setting variables to these scopes. In this section, we are going to look at how to handle user input, that is requests made through the URL and through web forms, which are the most common ways that users interact with your web application.
In many sites you would have seen something like: http://www.somesite.com/getproduct.cfm?productid=1232. These query strings allow the server to know that you are looking for a product with the productid of 1232. But how to get this information with Railo Server? Well, it's rather easy, we have the URL scope.