Grails provides working URL mappings right out of the box. The default URL mapping configuration is yet one more place that the Grails framework leverages the powerful idea of convention over configuration to lessen the burden put on the application developer. Sometimes, though, you will want to deviate from the convention and define your own custom mappings. For example, you may want to create more descriptive and human-readable URLs. Grails gives you the ability to easily define these custom URL mappings.
Defining application-specific URL mappings is something that comes up all the time while building web applications. ...