I have to build a multibrowser web app which should be able to be installed in both Windows and Linux servers.
I've thought of using a single client-side frontend built with JQuery, and two different backends, built with java and c# respectively. The client then would use ajax calls with json to communicate with MVC frameworks on the server (ASP.net MVC for the C# version and Struts for the java one).
Is it wise? Is it viable? What other choices do I have?
Why bother with C# if you have a perfectly fine cross-platform solution with Java that you can install on both windows and linux?
Regarding .NET version - your backend's only function is json communication? Then WCF services would be better choice I think.
That approach makes sense - The main challenge I see would be making the interfaces exactly the same for both java and .net - little issues like not having aspx in any of the urls.
You'll also need to be doing more of the work manually than you otherwise would - for example I've found that integrating the asp.net scriptservice stuff with jquery requires a few workarounds that wouldn't be an option if you need the front end to work with both platforms.