I have deployed:
https://developers.google.com/appengine/docs/java/gettingstarted/usingusers
I am greeted by my Gmail username when I visit the page.
package com.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 ClockecsServlet extends HttpServlet {
public void doGet(HttpServletRequest req,
HttpServletResponse resp)
throws IOException, ServletException {
SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd
hh:mm:ss.SSSSSS");
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>
<title>The 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>
<p>The time is: ${currentTime}</p>
</body>
</html>
In the application above
c:when test="${user != null}
is not evaluating to anything and I am greeted by *Welcome! Sign in or
register*. Since I am logged into Gmail it should display *Welcome! You can
sign out *
*
*
I am wondering if req.setAttribute("user", user); has set anything at all.
It does not seem like it. I see what looks like a good call to User user =
userService.getCurrentUser(); in the servlet. I don't see the problem yet.
Does anyone know what could be wrong with the code?
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