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jspjsp-tags

getRealPath() in jsp custom tag file using EL or scriptlet code

I'm trying to access the servlet path from a tag file like so;

<%@tag description="put the tag description here" pageEncoding="UTF-8"%>
<%=pageContext.getServletContext().getRealPath("/")%>

However it complains it cannot find the symbol; string:///xxxxx:89: cannot find symbol symbol : variable pageContext location: class org.apache.jsp.tag.web.xxxx

any suggestions on how to access that value in the tag file?

Solution

  • Since the expression appears within a tag file, pageContext is not a valid implicit object. As you've noted, application is valid, so is jspContext (an instance of javax.servlet.jsp.JspContext). On a related note, it is possible that getRealPath will return null...