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Asked: 2026-05-11T03:54:45+00:00

In a JSP page(index.jsp): ${requestContext.requestURL} is the URL just shows the expression itself. It

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In a JSP page(index.jsp):

${requestContext.requestURL} is the URL

just shows the expression itself. It used to be evaluated to something like ‘http://…/somerset/‘

I created the Maven project with maven-archetype-webapp archetype in Eclipse. The Jetty version is jetty-6.1.14.

My web.xml is simple:

<web-app>     <display-name>Archetype Created Web Application</display-name>     <servlet>       <servlet-name>SomersetServlet</servlet-name>       <display-name>SomersetServlet</display-name>       <description></description>       <servlet-class>com.foo.somerset.SomersetServlet</servlet-class>     </servlet>     <servlet-mapping>       <servlet-name>SomersetServlet</servlet-name>       <url-pattern>/som.do</url-pattern>     </servlet-mapping> </web-app>
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1 Answer

  1. See Javascript String.replace(/\$/,str) works weirdly in jsp file for some possible reasons.

    Your web.xml should contain reference to web-app_2_4.xsd schema, like

    <web-app xmlns='http://java.sun.com/xml/ns/j2ee'       xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'       xsi:schemaLocation='http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd'       version='2.4'>

    This enables servlet 2.4 and jsp 2.0 processing, which includes EL.

    Btw requestContext is not valid implicit object.

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