Servlet NOT_FOUND (GWT+AppEngine)
I want to develop my first AppEngine application, that will also use GWT. Since I don't have any experience with GWT and AppEngine, I started with tutorials on GWT site, and after succefully completing Getting Started, I started working on http://code.google.com/webtoolkit/doc/latest/tutorial/appengine.html
But I ran into a problem, and I don't have a clue why :)
I am trying to check if user is logged in, like in "Personalize the application with the User Service" section of tutorial.
But when I run the code itself, I get an error:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/>
<title>Error 404 NOT_FOUND</title>
</head>
<body><h2>HTTP ERROR 404</h2>
<p>Problem accessing /parkmeweb/login. Reason:
<pre> NOT_FOUND</pre></p><hr /><i><small>Powered by Jetty://</small></i><br/>
</body>
</html>
And here are my files:
LoginService
@RemoteServiceRelativePath("login")
public interface LoginService extends RemoteService {
public LoginInfo login(String requestUri);
}
LoginServiceAsync
public interface LoginServiceAsync {
public void login(String requestUri, AsyncCallback<LoginInfo> async);
}
LoginServiceImpl
public class LoginServiceImpl extends RemoteServiceServlet implements
LoginService {
public LoginInfo login(String requestUri) {
UserService userService = UserServiceFactory.getUserService();
User user = userService.getCurrentUser();
LoginInfo loginInfo = new LoginInfo();
if (user != null) {
loginInfo.setLoggedIn(true);
loginInfo.setEmailAddress(user.getEmail());
loginInfo.setNickname(user.getNickname());
loginInfo.setLogoutUrl(userService.createLogoutURL(requestUri));
} else {
loginInfo.setLoggedIn(false);
loginInfo.setLoginUrl(userService.createLoginURL(requestUri));
}
return loginInfo;
}
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<!-- Servlets -->
<servlet>
<servlet-name>loginService</servlet-name>
<servlet-class>com.parkme.parkmeweb.server.LoginServiceImpl</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>loginService</servlet-name>
<url-pattern>/parkmeweb/login/</url-pattern>
</servlet-mapping>
<!-- Default page to serve -->
<welcome-file-list>
<welcome-file>ParkmeWeb.html</welcome-file>
</welcome-file-list>
</web-app>
All this I getting called from onModuleLoad:
public void onModuleLoad() {
LoginServiceAsync loginSe开发者_开发知识库rvice = GWT.create(LoginService.class);
loginService.login(GWT.getHostPageBaseURL(), new AsyncCallback<LoginInfo>() {
public void onFailure(Throwable error) {
//this is where error is thrown
Window.alert(error.getMessage());
}
public void onSuccess(LoginInfo result) {
loginInfo = result;
if(loginInfo.isLoggedIn()) {
return;
} else {
loadLogin();
}
}
});
}
Just by looking at this, I can't see any problems, and I should probably looking for problems elsewhere, but I would like to hear some ideas what went wrong.
The handler is for /parkmweweb/login/, but you're visiting /parkmeweb/login - without the trailing slash.
Facing the same problem. But I tried to deploy it to google. The servlet is accessible and no problem. It looks like being a problem with GWT + Eclipse, not sure exactly where. Hope they can fix it, other wise testing is difficult.
I just restarted Eclipse and that fixed the problem.
Problem started when I switched from jre1.7 to jre1.6 both x64.
加载中,请稍侯......
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