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From "Allistair Crossley" <>
Subject RE: Traversing up a directory using RequestDispatcher
Date Fri, 17 Sep 2004 12:18:27 GMT
shame about the surname lol (sorry xeth just kidding)

> -----Original Message-----
> From: Shapira, Yoav []
> Sent: 17 September 2004 13:17
> To: Tomcat Users List; Xeth Waxman
> Subject: RE: Traversing up a directory using RequestDispatcher
> Hi,
> First of all, Xeth is the best name I've seen in a long time -- cool!
> >I have a bizarre issue.  Using Tomcat 5.0.12, I have an 
> application in
> >the directory C:\jakarta-tomcat-5.0.12\webapps called ChargeCard.
> >After loggin in, I am trying to forward a request to jsp page in that
> >directory.  However, RequestDispatcher apparently uses the directory
> >C:\jakarta-tomcat-5.0.12\webapps\ROOT as the Document root, so I need
> >to go up a directory in my forward request (something like url =
> >"../ChargeCard/index.jsp";)  However, RequestDispatcher requires a /
> >to start off the url, so I can't use the ../ start to go up a
> >directory.  Does anyone have an idea how I would do this?  I 
> tried url
> >= "/../ChargeCard/index.jsp";, but that results in a
> >NullPointerException being thrown.  All help is appreciated!
> The RequestDispatcher's behavior is constrained by the Servlet
> Specification.  Its JavaDoc has an explanation on how it resolves
> relative links: the leading slash for the getRequestDispatcher call is
> not really absolute, it's relative to the webapp's docBase.
> There's no reason Tomcat would use ROOT as the docBase, unless you're
> actually in the root webapp.  What is the docBase for your webapp?
> (Hint: it's not c:\jakarta-tomcat-5.0.12\webapps, it's a subdirectory
> under it, unless you've explicitly defined a Context with the webapp
> docBase) (in which case, if you kept the default Host 
> appBase, you have
> a bad configuration).
> Yoav
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