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javagoogle-app-enginechannel-api

AppEngine ChannelAPI WARNING: No file found for: /_ah/channel/connected/

in my web.xml

<servlet>
    <servlet-name>channelConnected</servlet-name>
    <servlet-class>ChannelConnected</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>channelConnected</servlet-name>
    <url-pattern>/_ah/channel/connected</url-pattern>
</servlet-mapping>

my servlet

public class ChannelConnected extends HttpServlet{

    private static final long serialVersionUID = 1L;

    protected void doPost(HttpServletRequest req, HttpServletResponse resp) 
            throws ServletException, IOException{
          System.out.println("hello world");
    }

}

I always get this error:

WARNING: No file found for: /_ah/channel/connected/

What's wrong with my request handler?

Solution

  • Adding backslash to the url pattern make it work.

    <url-pattern>/_ah/channel/connected/</url-pattern>