Dojo doesn't have anything specifixally like DWR because DWR is partly a client-side technology. That being said, Dojo does have some RPC-like mechanisms that aren't too bad.
THAT being said, I personally recommend DWR for Java developers over any other option. To me it's just heads and shoulder above the rest, Dojo included. For non-Java developers the story might be a little different.
DOJO is on the presentation layer... Personally, I wouldn't recommending using your presentation layer to directly access a webservice...
Joined: Dec 16, 2004
If you mean can Dojo call JSON-P based web services, then yes. If you mean the full-stack web services, using SOAP, WSDL, and so on, then I don't believe so.