Java – web services using Google App Engine

I see that Google App Engine can host web applications that will return HTML and so on But what about web services that communicate through HTTP and accept / return XML?

Who knows how to do this in the goggle App Engine Using python, or how to do it in Java (jas-wx is not supported)? Any link o samples or articles are highly appreciated

Thank you / /:)

Solution

Google App Engine allows you to write web services that return any type of HTTP response content This includes XML, JSON, text, etc

For example, take a look at the guestbook sample project provided by Google, which shows that the HTTP response is returned in the form of text / plain:

public class GuestbookServlet extends HttpServlet {
        public void doGet(HttpServletRequest req,HttpServletResponse resp) throws IOException {
            UserService userService = UserServiceFactory.getUserService();
            User user = userService.getCurrentUser();

            if (user != null) {
                resp.setContentType("text/plain");
                resp.getWriter().println("Hello," + user.getNickname());
            } else {
                resp.sendRedirect(userService.createLoginURL(req.getRequestURI()));
            }
        }
   }

In addition, App Engine Google Group is a good place to learn more, ask questions and view sample code