How to get query param as HashMap

Question

I want to be able pass to my server a GET request suh as:

 http://example.com/?a[foo]=1&a[bar]=15&b=3

And when I get the query param 'a', it should be parsed as HashMap like so:

{'foo':1, 'bar':15}

EDIT: Ok, to be clear, here is what I am trying to do, but in Java, instead of PHP:

Pass array with keys via HTTP GET

Any ideas how to accomplish this?

Answer 1

You can pass JSON Object as String by appending it to URL. But befor that you need to encode it you can use the method given in this link http://www.salesforce.com/us/developer/docs/apexcode/Content/apex_classes_restful_encodingUtil.htm for encoding and then just append the json object as any other string