How to map an action in grails 3 to "/"?

Question

How to map an action in grails 3 to "/"?

165 Views Asked by Pablo Pazos At 03 April 2020 at 23:38

I'm using Grails 3.3.10 and trying to map "/" to a controller action, where the user is redirected after a successful login.

In UrlMappings I have:

class UrlMappings {

   static mappings = {

      "/"(controller:'app')
   ...
...

When the user signs in, the app is redirected to the root http://localhost:8090/, but it shows a generated view from Grails:

Welcome to Grails

Congratulations, you have successfully started your first Grails
application! At the moment this is the default page, feel free to
modify it to either redirect to a controller or display whatever
content you may choose. Below is a list of controllers that are
currently deployed in this application, click on each to execute
its default action:

Available Controllers:

....

I deleted the default index.gsp and the main.gsp layout, but that view with the controllers is still appearing and I can't get my action to be executed.

If I remove the UrlMapping "/"(controller:'app'), the action is executed OK and the view is the correct one, but the URL is http://localhost:8090/app/index

Is it possible to display the view from app/index being the URL mapped to "/"?

Original Q&A

There are 1 best solutions below

**Jeff Scott Brown** · Accepted Answer · 2020-04-03T23:54:05.190000

Is it possible to display the view from app/index being the URL mapped to "/"?

Yes it is. See the project at https://github.com/jeffbrown/pablopazosurlmapping.

https://github.com/jeffbrown/pablopazosurlmapping/blob/452980ca99bbd5ccc217047534798001a8d7d9cb/grails-app/controllers/pablopazosurlmapping/UrlMappings.groovy

package pablopazosurlmapping

class UrlMappings {

    static mappings = {
        "/$controller/$action?/$id?(.$format)?"{
            constraints {
                // apply constraints here
            }
        }

        "/"(controller:'app')
        "500"(view:'/error')
        "404"(view:'/notFound')
    }
}

https://github.com/jeffbrown/pablopazosurlmapping/blob/452980ca99bbd5ccc217047534798001a8d7d9cb/grails-app/controllers/pablopazosurlmapping/AppController.groovy

package pablopazosurlmapping

class AppController {
    def index() {
        [name: 'Pablo']
    }
}

https://github.com/jeffbrown/pablopazosurlmapping/blob/452980ca99bbd5ccc217047534798001a8d7d9cb/grails-app/views/app/index.gsp

<%@ page contentType="text/html;charset=UTF-8" %>
<html>
<head>
    <title>Demo</title>
</head>

<body>
<h2>${name} Was Here!</h2>
</body>
</html>

I hope that helps.

How to map an action in grails 3 to "/"?

There are 1 best solutions below

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