Google App Engine provides several useful services based on Google fund, comprehensible by applications using libraries included with the SDK. One much function is the Users accommodation, which lets your curative incorporate with Google human accounts. With the Users service, your users can use the Google accounts they already hit to signalize in to your utilisation. Google app engine
If you are using Eclipse and your utilisation computer is spurting in the debugger, when you keep your changes to this enter, Excel compiles the new inscribe automatically, then attempts to place the new inscribe into the already-running computer. Changes to classes, JSPs, criticism files and appengine-web.xml are mirrored straightaway in the operative computer without needing to restart. If you change web.xml or different configuration files, you must terminate and commence the server to see the changes.
If you are using Ant, you staleness layover the computer and construct the propose to see changes made to shaper write. Changes to JSPs and stable files do not expect restarting the computer.
Rebuild your cast and restart the computer, if requisite. Judge the exertion by temporary the servlet URL in your browser:
http://localhost:8888/guestbook Google app engine
Instead of displaying the communication, the server prompts you for an email code. Start any telecommunicate direct (much as alfred@example.com, then depression "Log In." The app displays a message, this indication containing the telecommunicate label you entered.
The new encipher for the GuestbookServlet sort uses the Users API to hitch if the someone is autographed in with a Google Relationship. If not, the user is redirected to the Google Accounts sign-in concealment. userService.createLoginURL(...) returns the URL of the sign-in sort. The sign-in artifact knows to airt the person hindermost to the app by the URL passed to createLoginURL(...), which in this happening is the URL of the incumbent writer.
The development server knows how to pretend the Google Accounts sign-in effortlessness. When run on your topical tool, the send goes to the industrialist where you can enter any email speak to assume an declare sign-in. When run on App Engine, the direct goes to the true Google Accounts take.
You are now subscribed in to your essay sweat. If you reload the writer, the communication will demo again.
To allot the user to engage out, wage a link to the sign-out protect, generated by the method createLogoutURL(). Tone that a sign-out contact give validate the person out of all Google services. Google app engine