Just to clear up what i'm trying to do:
not having any problems getting init parameters using servlets, the following code in web.xml will achieve that:
<servlet>
<servlet-name>MyServlet</servlet-name>
<servlet-class>MyServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
</servlet>
The problem is accessing init-params exclusively in JSPs without any servlets at all. In theory this should be possible as a JSP is a servlet but it's proving very difficult to do this.
Right now i'm working on a background servlet for the JSP to make these init-params possible. I'll post solution when it's done.
| Bo Xu <[EMAIL PROTECTED]>
03/08/01 10:09 AM
|
To: [EMAIL PROTECTED] cc: Subject: Re: config.getInitParameter() still returning null |
Milt Epstein wrote:
> [ ... ]
>
> I could be wrong, but I don't believe you have to define
> servlet-mapping's to get init-param's to work, just having defined the
> servlet is sufficient. However, in the URL, you do need to use the
> specific servlet-name you used in the servlet definition. (That's
> because you can define the same servlet class multiple times, with
> different servlet-name's and different init-param's.)
>
> So, according to the above web.xml, the URL that should be used is:
>
> http://your.domain.com/yourwebappname/servlet/Error
> [...]
thanks for your email :-) and now I find mistake in my last email,
the following is my new understanding about Servlet(not JSP) with
jakarta-tomcat-4.0-b1 :
0 if we don't define any "named" servlet definition
in webapps/myapp/WEB-INF/web.xml, then we can invoke
MyServlet with the following way:
http://localhost:8080/myapp/servlet/MyServlet
it will invoke the "default/non-named" servlet definition
1 if we define the following in webapps/myapp/WEB-INF/web.xml:
...
<servlet-name>MyServlet_sn </servlet-name>
...
then we Also can invoke this servlet definition with this servlet-name:
http://localhost:8080/myapp/servlet/MyServlet_sn
2 if we also define a servlet-mapping:
<servlet-mapping>
<servlet-name>MyServlet_sn </servlet-name>
<url-pattern> /MyServlet_up</url-pattern>
</servlet-mapping>
then we Also can invoke this servlet definition with this url-pattern:
http://localhost:8080/myapp/MyServlet_up
and 1 and 2 will invoke the same "named" servlet definition whose
name is MyServlet_sn.
3 from a email in "List.this" ^_^ , I find:
if we directly use "MyServlet" as the servlet-name, and we invoke
with the following way:
http://localhost:8080/myapp/servlet/MyServlet
we will goto that "named" servlet definition whose name is
"MyServlet"-> we will Not goto that "default/non-named"
servlet definition.
hope the above is right, otherwise I need to correct my
"experience notebook" Again :-) or I need to use a pencial
instead of a pen? :-)
Bo
Mar.08, 2001
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