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> Subject: BugRat Report #543 has been filed.
> X-Spam-Rating: locus.apache.org 1.6.2 0/1000/N
>
> Bug report #543 has just been filed.
>
> You can view the report at the following URL:
>
> <http://znutar.cortexity.com/BugRatViewer/ShowReport/543>
>
> REPORT #543 Details.
>
> Project: Tomcat
> Category: Bug Report
> SubCategory: New Bug Report
> Class: swbug
> State: received
> Priority: high
> Severity: critical
> Confidence: public
> Environment:
> Release: 3.2 Final
> JVM Release: Sun JDK 1.3.0-C
> Operating System: NT4
> OS Release: SP5
> Platform: intel
>
> Synopsis:
> calling getServletContext().getRequestDispatcher() always returns null
>
> Description:
> Making a call to:
> getServletContext().getRequestDispatcher("http://www.google.com/")
>
> with any string, always returns null;
Follows the javadoc for getRequestDispatcher().
What can be seen is that it explicitly says that the path must
begin with a "/", and your usage does not.
The javadoc does not say that you can pass any URL as an argument.
>From the implementation perspective, if what you want to do is
perform a redirection to a URL outside your tomcat servlet container,
RequestDispatcher redirection is not what you need to do.
You should probably do location redirect.
response.setHeader("Location", url);
Here is the javadoc.
public RequestDispatcher getRequestDispatcher(java.lang.String path)
Returns a RequestDispatcher object that acts as a wrapper for the resource located
at the given path. A RequestDispatcher object can be used to forward a request to
the resource or to include the resource in a response. The resource can be
dynamic or
static.
The pathname must begin with a "/" and is interpreted as relative to the current
context root. Use getContext to obtain a RequestDispatcher for resources in
foreign contexts. This method returns null if the ServletContext cannot return a
RequestDispatcher.
Parameters:
path - a String specifying the pathname to the resource
Returns:
a RequestDispatcher object that acts as a wrapper for the resource at the
specified path
See Also:
RequestDispatcher, getContext(java.lang.String)
Arieh
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Arieh Markel Sun Microsystems Inc.
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