GWT and Ruby on Rails

We have RoR application and we are planning to 开发者_运维百科make js interface(extjs or closure) in new version. Is it possible to use GWT with RoR?

---

Yes, using GWT with RoR is perfectly possible. Client server communication will be by JSON, which RoR can easily produce. GWT works best when you're creating a client side app in HTML/JavaScript/CSS, if you want progressive enhancement of an existing HTML UI jQuery etc. might be a better choice.

---

As this is still the accepted answer, decided to update with more modern approaches

RESTful API

The tooling for creating and consuming API's has improved markedly.

• Creating REST JSON API from RoR is simple. Basically set controller to respond to a JSON request and serialise model to JSON

• Consuming REST API from GWT has a good Stack Overflow answer how-to-call-restful-services-from-gwt

RoR to GWT RPC project (very dated)

The http://code.google.com/p/gwt-rails/ project is intended to provide easy to use RPC between RoR backend, and GWT UI.

---

You can, but you won't have the nice RPC mechanism available with java based servers. You'll probably have to use RequestBuilder class to pass data to the server & back.

---

I'm not that familiar with GWT but I guess in theory it's possible to use GWT cross compile Java into JavaScript which is then used within a Rails application. It sounds pretty cumbersome though.