Hi,
I wanted to add that I am accessing the servlet via a javascript request from
Apache HTTP. As such I am setting the following in the header of the POST
response:
resp.setHeader( "Access-Control-Allow-Origin", mAllowedHost );
Just wanted to mention this just in case it had anything to do with the
init/param problem I am seeing.
Cheers,
Stuart
On 16 Oct 2012, at 18:06, Stuart Broad wrote:
>
> Hi all,
>
> I am not sure why but my servlet init method is getting called more than once
> and I am not sure why. Any help would be much appreciated.
>
> My web.xml is as follows:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <web-app>
> <servlet>
> <servlet-name>myserlvet</servlet-name>
> <servlet-class>MyServlet</servlet-class>
> <async-supported>true</async-supported>
> <init-param>
> <param-name>example</param-name>
> <param-value>value</param-value>
> </init-param>
> <load-on-startup>1</load-on-startup>
> </servlet>
>
> <servlet-mapping>
> <servlet-name>myservlet</servlet-name>
> <url-pattern>/poll</url-pattern>
> <url-pattern>/run</url-pattern>
> <url-pattern>/stop</url-pattern>
> </servlet-mapping>
> <listener>
> <listener-class>MySessionListener</listener-class>
> </listener>
> </web-app>
>
> I am accessing over HTTPS. The initial POST seems to work ok:
>
> 0:0:0:0:0:0:0:1%0 - - [16/Oct/2012:16:53:54 +0100] "POST /myservlet/run
> HTTP/1.1" 200 34
>
> But then this is followed by a GET which fails:
>
> 0:0:0:0:0:0:0:1%0 - - [16/Oct/2012:16:53:54 +0100] "GET
> /myservlet/poll?_dc=1350402834770 HTTP/1.1" 500 2312
>
> The reason the GET fails is because the creation of the Servlet fails. This
> is the second time the servlet init is called and for the second time the
> init parameters are null (so it fails to be created). If I could figure out
> why the init params are null the second time around I could probably come up
> with a work around BUT my preference is to figure out why the init method is
> being called twice.
>
> I bit more information:
>
> Tomcat version: apache-tomcat-7.0.29
> Mac OS X 10.7.5
>
> Cheers,
>
> Stuart
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