在Play Framework上生成管理区域（CRUD）

Question

I'm following the Official tutorial for creating a administration area. I did the first step correctly but when i extend my controller class to CRUD i got an error (Crud not found on the project) + Access denied when I access to http://localhost:9000/admin/ . This is what I did:

1. Enable the CRUD module for the application In the /conf/application.conf file, enable the CRUD module by adding this line:

   module.crud=${play.path}/modules/crud

   Import default CRUD routes

2. In the conf/routes file, import the default module routes by adding this line:

   * /admin module:crud

3. Create the Users controller

    package controllers; public class Users extends CRUD { } 

4. Restarted play & eclipse

Any suggestion to get the admin area work please ?

Answer 1

尝试再次运行此命令

play eclipsify myApp 

Answer 2

Thanks for the tip, play eclipsify made the trick but before, i had to resolve dependencies as they are now in the dependencies.yml file:

# Application dependencies

require:
    - play
    - play -> crud

Just launch "play dependencies myApp" and then eclipsify. Reload your project in Eclipse and it works.

Tested in latest (1.2.3)

Fabien

Answer 3

This could be caused by several issues. Let me outline steps to validate your setup:

1. Controller name must be plural (controllers/Users.java)
2. Make sure you have model (models/User.java)
3. Controller must extend CRUD
4. run play dependencies
5. run play eclipsify and re-import project (just in case)
6. Annotate model with @Entity
7. Routes for /admin must be before /{controller.action} ...
8. application.conf must contain following line:

    module.crud=${play.path}/modules/crud</li> 

Comments:

• Used Play framework version 1.2.3 does not require to have crud in dependencies.yml

Answer 4

I don't understand your problem but there can be a problem with your route definitions. Please check your conf/routes file
the entry .* /admin module:crud seems a little bit strange to me
when you start your play! server are there any logging messages indicating wrong route definitions? eg Invalid route definition : .* /admin module:crud
I think the definition should look something like this * /admin module:crud

Answer 5

The solution for me was this:

The Controller objects must be plural (end in s )!

The controller's class name has to be the model class name with a final 's'.

eg if you have User.java model object, the controller object extending CRUD must be User *s* .java

I was running Play 1.2.3 on Windows 7 and this took me a while to figure out, hope it helps someone else!

Answer 6

If you look at the tutorial, the route file is as follows

# Import CRUD routes
*      /admin              module:crud

You should also check that the CRUD module exists, by going to

play/modules/crud/

If it does not exist, I would suggest downloading the latest version of Play.

Answer 7

我不小心在model包而不是models下编写了我的实体。