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Posted to users@tapestry.apache.org by Angelo Chen <an...@yahoo.com.hk> on 2007/10/04 03:34:05 UTC
T5: retrieve user defined parameter at start of Tapestry
Hi,
I'm thinking of putting some parameters in web.xml and retrieve them when
the application starts, any hint how to do this? Thanks.
A.C.
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Re: T5: retrieve user defined parameter at start of Tapestry
Posted by Christian Köberl POI <ch...@porsche.co.at>.
Hello Angelo!
Angelo Chen wrote:
>
> I tried to do following, but does not work:
> 1. i added a param in the web.xml:
> <context-param>
> <param-name>tapestry.app-package</param-name>
> <param-value>org.test</param-value>
>
> <param-name>test</param-name>
> <param-value>myparam</param-value>
> </context-param>
>
You have to define each context parameter seperately:
<context-param>
<param-name>tapestry.app-package</param-name>
<param-value>org.test</param-value>
</context-param>
<context-param>
<param-name>test</param-name>
<param-value>myparam</param-value>
</context-param>
Then it should work.
Chris
PS: you can also use the ApplicationGlobals in your AppModule to use it in
other services (e.g. for things you want to do during startup).
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Re: T5: retrieve user defined parameter at start of Tapestry
Posted by Angelo Chen <an...@yahoo.com.hk>.
Hi Chris,
I tried to do following, but does not work:
1. i added a param in the web.xml:
<context-param>
<param-name>tapestry.app-package</param-name>
<param-value>org.test</param-value>
<param-name>test</param-name>
<param-value>myparam</param-value>
</context-param>
2. then i tried to access it in the program:
@Inject
private ApplicationGlobals globals;
System.out.println(globals.getServletContext().getInitParameter("test"));
it just got an exception during starting up:
Construction of service ComponentClassResolver failed:
I'm sure i made a mistake, but where is that? Thanks.
A.C.
Christian Köberl POI wrote:
>
>
> Angelo Chen wrote:
>>
>> I'm thinking of putting some parameters in web.xml and retrieve them when
>> the application starts, any hint how to do this? Thanks.
>> A.C.
>>
> Create a new Service, Inject the ApplicationGlobals and get the parameters
> out of the ServletContext in ApplicationGlobals.
>
> Chris
>
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Re: T5: retrieve user defined parameter at start of Tapestry
Posted by Christian Köberl POI <ch...@porsche.co.at>.
Angelo Chen wrote:
>
> I'm thinking of putting some parameters in web.xml and retrieve them when
> the application starts, any hint how to do this? Thanks.
> A.C.
>
Create a new Service, Inject the ApplicationGlobals and get the parameters
out of the ServletContext in ApplicationGlobals.
Chris
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