Grails 3 - Read classpath resource in Bootstrap.groovy

Question

I'm migrating a Grails 2.5 application to Grails 3.0.9 and having some issue reading a classpath resource in grails-app/init/BootStrap.groovy.

In Grails 2.5.x it was possible to access resource (e.g. textfiles) using the Spring ClassPathResource when putting the resource file into the same folder as the BootStrap.groovy

def file1 = new ClassPathResource('my-textfile.txt').file

In Grails 3 it works when I start my application using grails run-app. All resources are taken from src/main/resources. But if I start the application using the Spring Boot Application (located at /grails-app/init/a/b/Application.groovy) class in IntelliJ the BootStrap.groovy find the resources anymore.

Does anyone know how to access these files within BootStrap.groovy in Grails 3.0.9 when starting the app using Application.groovy?

Answer 1

According to the Gradle convention I place the resources under src/main/resource since they need to be accessible at runtime.

For some reasons my grails-app/init/a/b/Application.groovy can't find these resources so I had to place a symbolic link to grails-app/init/a/b. After that everything works as expected.

Answer 2

class BootStrap {

     def init = { servletContext ->

        def config = new ConfigSlurper().parse(new File("${System.properties['user.dir']}/grails-app/conf/test.groovy").toURL())
        println config
        println config.hfy.test
    }
    def destroy = {
    }
}

${System.properties['user.dir']} : Project directory