Unable to resolve reverse routing methods in Intel

问题:

I'm following one of the play framework tutorials, but I'm getting compile errors whenever I try to use reverse routing. Firstly,

public static Result javascriptRoutes() {
    response().setContentType("text/javascript");
    return ok(
        Routes.javascriptRouter("jsRoutes",
            controllers.routes.javascript.Projects.add(),
            controllers.routes.javascript.Projects.delete(),
            controllers.routes.javascript.Projects.rename(),
            controllers.routes.javascript.Projects.addGroup()
        )
    );
}

where the error shown in intelliJ is 'cannot resolve method javascriptRouter(java.lang.String, ?, ?, ?, ?)'

But also in the a unit test:

@Test
public void notAuthenticated() {
    Result result = callAction(
            controllers.routes.ref.Application.index(),
            fakeRequest()
    );
    assertEquals(303, status(result));
    assertEquals("/login", header("Location", result));
}

where it cannot resolve the index method.

Is this a problem with intelliJ, or am I missing something within play?

For the first part, here is the entry in my routes file:

GET     /assets/javascripts/routes  controllers.Application.javascriptRoutes()

and my controller, Projects, has got the defined methods.

回答1:

File -> Project Structure

Select Sources in Right Pane

Add Source folder

target/scala-XXX/classes_managed

target/scala-XXX/src_managed/main

回答2:

I was running into the same problem and found the solution here: https://github.com/playframework/Play20/issues/969

In short:

• Create the directories javascript and ref under the controllers package
• Run activator compile and now Intellij should get it // used to be 'play compile'
• If you still got the errors try to run activator idea again // used to be 'play compile'*

回答3:

Pulled from a link provided by @Markus Kittig. Great temporary fix. https://github.com/playframework/playframework/issues/1784#issuecomment-26345523

Synopsis: Add target/scala-XXX as a managed source and remove the app controllers and views sources flag inside File->Project Structure->Modules->Sources. Then recompile.

Works on IntelliJ Ultimate 12.1.{4|6}. Created the play application with the command line interface and generated a project file using play idea. Used Play 2.2.0.

回答4:

With IntelliJ 14.1 and Play 2.3.8 nothing of the above worked, but the advice from this mailing list worked. (Almost) blatantly copied:

Locate the target/scala-2.11/src_managed and target/scala-2.11/twirl directories in the project view, then right click and Mark Directory As -> Generated Sources (Root).

I bumped the scala version and obviously in newer versions of IntelliJ the Root word has been added. Also, you cannot select this from the Project Structure window, the option is not available. It is possible only through the Project pane in the main window. If it refuses to be marked as Generated Sources, try to unmark thetarget directory (Mark Directory As -> Unmark ).

回答5:

For people using Play 2.4.x or above, it seems that Play no longer produces reverse routing files for javascript in src_managed et al.

Instead, you need to include scala-2.xx/routes/main directory as Sources.

回答6:

This question was asked a year ago, but to answer for future queries by other coders, the problem is easily solved by adding a "play.Routes" path like this

public static Result javascriptRoutes() {
    response().setContentType("text/javascript");
    return ok(
            play.Routes.javascriptRouter("jsRoutes",

                    // Routes for Projects
                    controllers.routes.javascript.Projects.add(),
                    controllers.routes.javascript.Projects.delete(),
                    controllers.routes.javascript.Projects.rename(),
                    controllers.routes.javascript.Projects.addGroup()
            )
    );

}

Ensure that you have the proper imports to the class:

import play.mvc.*;
import play.data.*;

回答7:

I am using Idea 14.1.4 community edition, i managed to remove the index and route not resolved errors by right clicking on the target folder and marking it as not excluded. NB i run my project using the command line i can not find any run configuration in the ide.