why is getInitParameter() fetched only when i use url pattern?

[Sourabh Bawage]

web.xml

<web-app>
<servlet>
		<servlet-name>pqr</servlet-name>
		<jsp-file>/index.jsp</jsp-file>
		<init-param>
			<param-name>email</param-name>
			<param-value>[e-mail]</param-value>
		</init-param>
	</servlet>
	<servlet-mapping>
		<servlet-name>pqr</servlet-name>
		<url-pattern>/myJsp</url-pattern>
	</servlet-mapping>

</web-app>

index.jsp

Hello Sourabh,<br><br>

Email: <%= getInitParameter("email")%>

http://localhost:6060/SCWCDApp/index.jsp

Output:

Hello Sourabh,

Email: null

http://localhost:6060/SCWCDApp/myJsp

Output:

Hello Sourabh,

Email:  [e-mail]

I dint understand why the init parameters were not fetched when i directly called the JSP??

[Jaikiran Pai]

Sourabh Bawage wrote:web.xml

<web-app>
<servlet>
		<servlet-name>pqr</servlet-name>
		<jsp-file>/index.jsp</jsp-file>
		<init-param>
			<param-name>email</param-name>
			<param-value>[e-mail]</param-value>
		</init-param>
	</servlet>

As you see, it's a servlet specific initialization param. So unless that servlet gets invoked that initialization param isn't relevant. Directly calling the JSP will not go through that servlet.

Are you sure you wanted it to be a servlet specific initialization param and not a web application level context param?

[Sourabh Bawage]

As you see, it's a servlet specific initialization param. So unless that servlet gets invoked that initialization param isn't relevant. Directly calling the JSP will not go through that servlet.

Hi Jaikiran,
I believe that 1 servlet is created by the container for the JSP, so whenever i call this JSP that particular servlet will be invoked......
so even if i call using the file name (index.jsp) or the url pattern, the SAME servlet will be invoked...

I dont get what difference is it making internally....??
Kindly help....