JSP container?

[Srikkanth Mohanasundaram]

Hi,

What do you mean by an internal JSP container?And what is implicit mapping,how does it override url-pattern elements?

[David O'Meara]

A JSP container provides the working to support JSPs. Typically a JSP container is built using the existing Servlet container, that is it can be considered an extension of it.

Theoretically it is possible to support a JSP container without requiring Servlets 'as such', but would probably result in more rather than less work to implement.

IN tomcat, JSPs get configured in the conf/web.xml file. I could post the mappings but you might find the journey interesting yourself.

Dave

[Srikkanth Mohanasundaram]

<servlet>
        <servlet-name>jsp</servlet-name>
        <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
        <init-param>
            <param-name>fork</param-name>
            <param-value>false</param-value>
        </init-param>
        <init-param>
            <param-name>xpoweredBy</param-name>
            <param-value>false</param-value>
        </init-param>
        <load-on-startup>3</load-on-startup>
    </servlet>
<!-- The mapping for the JSP servlet -->
    <servlet-mapping>
        <servlet-name>jsp</servlet-name>
        <url-pattern>*.jsp</url-pattern>
    </servlet-mapping>
 
    <servlet-mapping>
        <servlet-name>jsp</servlet-name>
        <url-pattern>*.jspx</url-pattern>
    </servlet-mapping>
 

    

I found this in conf/web.xml.. Does this mean all files of *.jsp will be processed by the JspServlet? Will this Servlet start the lifecycle of the JSP?

Regards,
Srikkanth.M

[David O'Meara]

Yes.

[Deepak Bala]

I found this in conf/web.xml.. Does this mean all files of *.jsp will be processed by the JspServlet? Will this Servlet start the lifecycle of the JSP?

Yep. This means you could map other extensions as well to behave like they are JSPs.

[Srikkanth Mohanasundaram]

Okay thanks guys,
I have a jsp-config element

   
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<include-prelude>
/WEB-INF/jspf/prelude.jspf
</include-prelude>
</jsp-property-group>
 

Does this mean this will call the JspServlet? Is this called implicit mapping?

[Bear Bibeault]

Originally posted by Srikkanth Mohanasundaram:
Does this mean this will call the JspServlet? Is this called implicit mapping?

No, that just sets up config information for JspServlet to use.

[Srikkanth Mohanasundaram]

Thanks all,
I went through the spec SRV.11.2.1 now i'm clear
Regards