GWT download file thru RemoteServiceServlet

I have a button called export when clicked it has to export the available records in a grid into a csv file. I was able to achieve this by regular servlet but with a class extending RemoteServiceServlet.. Even if I get the response and set the bytes on it as outputstream it does not work..Andy suggestions are appreciated

I tried creating an Anchor and that anchor sends the request to a regular servlet I can acheive it but i need to mainta开发者_Python百科in some objects fetched from the client...I don't just want to send String params

Window.Location.assign("http://localhost:8080/Commenting/DownloadController?filters="+stringBuffer.toString());

You can use RequestBuilder to send/retrieve data from HTTP server.