I usually redirect error code handlers to the controller, so I can make some entries or something else before rendering the view. You can also use this here:
class UrlMappings {
static mappings = {
"/searchable/$action?"(controller: "errors", action: "urlMapping")
"/$controller/$action?/$id?" { }
"/"(view:"/index")
"403"(controller: "errors", action: "accessDenied")
"404"(controller: "errors", action: "notFound")
"405"(controller: "errors", action: "notAllowed")
"500"(view: '/error')
}
}
where ErrorsController looks something like this:
class ErrorsController {
def accessDenied = {}
def notFound = {
log.debug "could not find $request.forwardURI"
}
def notAllowed = {}
def urlMapping = {
log.warn "unexpected call to URL-Mapped $request.forwardURI"
render view: 'notFound'
}
}
and you will need to create accessDenied.gsp, notFound.gsp and notAllowed.gsp in grails-app / errors
"" , , 404, .