How to pass and fetch multiple parameter in the URL of the Web Dynpro

Please help me to fetch parameter in runtime from the URL in web dynpro allication. Like

MyApplication?SAPtestId=Arun?SAPtestId=Kumar?Test2=Jaiswal;

I want to fetch the value of the SAPtestId, Test1 and Test2 in the web Dynpro Application.

Please help me on this asap. thanks