[google-appengine] Users and Google Accounts

[Eric Sepich]

package clock;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.SimpleTimeZone;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.*;

import com.google.appengine.api.users.User;
import com.google.appengine.api.users.UserService;
import com.google.appengine.api.users.UserServiceFactory;

@SuppressWarnings(serial)
public class ClockServlet extends HttpServlet {
public void doGet(HttpServletRequest req,
  HttpServletResponse resp)
throws IOException, ServletException {
SimpleDateFormat fmt = new SimpleDateFormat(-MM-dd 
hh:mm:ss.SS);
fmt.setTimeZone(new SimpleTimeZone(0, ));

UserService userService = UserServiceFactory.getUserService();
User user = userService.getCurrentUser();
String loginUrl = userService.createLoginURL(/);
String logoutUrl = userService.createLogoutURL(/);

req.setAttribute(user, user);
req.setAttribute(loginUrl, loginUrl);
req.setAttribute(logoutUrl, logoutUrl);
req.setAttribute(currentTime, fmt.format(new Date()));

resp.setContentType(text/html);

RequestDispatcher jsp = 
req.getRequestDispatcher(/WEB-INF/home.jsp);
jsp.forward(req, resp);
}
}


---

%@ taglib uri=http://java.sun.com/jsp/jstl/core; prefix=c %
html
  head
titleThe Time Is.../title
  /head
  body
c:choose
  c:when test=${user != null}
p
  Welcome, ${user.email}!
  You can a href=${logoutUrl}sign out/a.
/p
  /c:when
  c:otherwise
p
  Welcome!
  a href=${loginUrl}Sign in or register/a to customize.
/p
  /c:otherwise
/c:choose
pThe time is: ${currentTime}/p
  /body
/html
-

Even though I am signed in to my Google Account in Chrome I am still seeing 
Sign in or register not Welcome as I expected. When I click Sign in I am 
forwarded to a page with one text field to enter an email and a check box 
to sign in as administrator. There must be something wrong because I think 
since I am logged into gmail it should display welcome?

Thanks in advance...


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Re: [google-appengine] Users and Google Accounts

[Vinny P]

On Tue, Aug 6, 2013 at 3:49 PM, Eric Sepich ericsepic...@gmail.com wrote:

 Even though I am signed in to my Google Account in Chrome I am still
 seeing Sign in or register not Welcome as I expected. When I click Sign in
 I am forwarded to a page with one text field to enter an email and a check
 box to sign in as administrator. There must be something wrong because I
 think since I am logged into gmail it should display welcome?



Before using a custom JSTL page, first try to see if you can get the Users
service working.

First, deploy this servlet demo:
https://developers.google.com/appengine/docs/java/gettingstarted/usingusers

Then deploy this demonstration JSTL file (also uses the Users API):
https://developers.google.com/appengine/docs/java/gettingstarted/usingjsps

From there, you can modify the demonstration JSTL file slowly until you get
the page you want.


-
-Vinny P
Technology  Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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