gwt export to file

i have a problem with gwt application. i have an array of strings in the c开发者_JAVA技巧lient application and i want to export it to a file, but it isn't probably possible so i have to use servlet, right? but i don't really know how.

---

It is quite unfortunate, given the advance of browser applications, that data produced by such applications cannot be saved by the user locally, but instead has to make e round trip to the server. It would be really helpful, I think, to adopt the data scheme (http://en.wikipedia.org/wiki/Data_URI_scheme) for such cases, and not only for images, which has proved itself quote useful. If this scheme is adopted a GWT app could build a link and provide the data to be saved as part of the href attribute of the tag.

---

Here's a guide on How to Call a Servlet in GWT.

Alternatively, use the GWT HTTP client to send a GET or POST request to the servlet.

---

In this case using servlet is a good idea or maybe RPC is better. What do you think? So far I wrote a separate servlet that writes an array of strings to a file. But I don't know how to connect to the gwt project. Will this created file be HttpServletResponse response in this case?