Restricting all URLs to end with .html in a Grails Application
While going through the grails-users mailing list, I found a question about restricting all URLs to end with ‘.html’ & returning Error 404 for the default mappings. After spending some time, I was able to build a sample CRUD application restricting URLs to end with .html.
I did the following steps for the same:
1. Create a new grails application with name ‘Urlmapping’: grails create-app Urlmapping
2. Create domain class Urltest: grails create-domain-class Urltest
3. Add a String variable ‘test’ in domain class Urltest:
class Urltest {
String test
static constraints = {
}
}
4. Generate controllers & views for Urltest: grails generate-all Urltest
5. Changed the UrlMappings in UrlMappings.groovy:
class UrlMappings {
static mappings = {
"/$controller/$action/$id.$suffix"
{
constraints {
suffix(matches: 'html')
}
}
"/$controller/$action.$suffix"
{
constraints {
suffix(matches: 'html')
}
}
"/"(view: "/index")
"500"(view: '/error')
}
}
6. Removed the Entry “html: ['text/html','application/xhtml+xml'],” from map grails.mime.type in Config.groovy
7. Created initial data in BootStrap.groovy:
class BootStrap {
def init = {
servletContext - & gt;
Urltest urltest
(1..5).each {
urltest = new Urltest(test: 'Test-' + it)
urltest.save()
}
}
def destroy = {
}
}
Run the application: grails run-app
Now, I had to use following urls for CRUD functionality:
# http://localhost:8080/mailing/urltest/index.html
# http://localhost:8080/mailing/urltest/list.html
# http://localhost:8080/mailing/urltest/create.html
# http://localhost:8080/mailing/urltest/show/1.html
# http://localhost:8080/mailing/urltest/edit/1.html
(Scaffolding generated links http://localhost:8080/mailing/urltest/index, http://localhost:8080/mailing/urltest/edit/1 & http://localhost:8080/mailing/urltest/show/1 etc. won’t work since default associated UrlMapping "/$controller/$action/$id?" has been removed from UrlMappings.groovy)
To convert the links into desired format, you needs to pass suffix=’html’ as params to g:link & g:form tags on all views & redirects in Controller.
I have attached the source code for reference.
This was my first attempt for editing default Url mappings. I am sure I will be able to find better & less tedious ways of doing the same over a period of time.
Also, I would like to mention that I found broken links generated by g:paginate tag.
A JIRA issue exists for the same.
—
~Aman Aggarwal
aman@intelligrape.com
Hi Aman,
Great post, very informative. One thing I found to make this less tedious is to have the urlmappings defined as
“/$controller/$action/${id}.html”
{}
“/$controller/${action}.html”
{}
That way you don’t need to pass any suffix in the g:link and g:form tags.