EL- getting JSP Init Param

[Amirr Rafique]

Hi Rancher

In EL, We have initParam implicit object for getting context init params. How can we get JSP init params using EL.

Thanks

[Christophe Verré]

What are you calling JSP init params ?

[Amirr Rafique]

We can define init-params for a jsp page using following

  
<servlet>
  <servlet-name>MyJsp</servlet-name>
  <jsp-file>/MyJsp.jsp</js-file>
  <init-param>
    <param-name>age</param-name>
    <param-value>23</param-value>
  </init-param>
</servlet>

Can we access these params using EL

[Christophe Verré]

Yes. These are called servlet init parameters. You're pointing to a JSP page, but it's still a servlet, so you can access them like any other servlet init params.

[Sergio Tridente]

Yes, but how about achieving it without using scripting at all (EL + JSTL)?

The only thing I can think of doing is to use ${pageContext.servletConfig.initParameterNames} to retrieve a java.util.Enumeration object containing the servlet's init parameters' names. And then what? How would you call pageContext.getServletConfig().getInitParameter(java.lang.String name) without using scripting?

Or is it not possible?
[ March 23, 2007: Message edited by: Sergio Tridente ]

[Tridib Samanta]

Anybody have any definite answer on above mentioned problem?

What I can think write now is to write an EL Function which takes config and parameter name as input and returns the value.

[Christophe Verré]

I was a bit quick one that one, sorry
That's right, you can't access them directly.

http://faq.javaranch.com/view?InitParamsThruExpressionLanguage