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Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

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Lepl parser for Python.

Colorless Green.

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Data access via web services.

Cache rewrite.

Extending OpenSSH.

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© 2006-2015 Andrew Cooke (site) / post authors (content).

Matching Clean URLs with Tomcat/Spring

From: "andrew cooke" <andrew@...>

Date: Sat, 11 Feb 2006 16:50:37 -0300 (CLST)

Martini in the Spring forums has done a huge amount of work trying to
clear up some confusion I (and at least one other person) had about
matching "any" URL - the root of the problem being that finally you render
the page with a jsp page, which itself is dispatched by Tomcat (and so
matches the "any" servlet, looping or crashig).

The thread starts at
http://forum.springframework.org/showthread.php?t=21840 but the answer is
at the end of this comment (page 2) -

  Anyways, I tried copy/pasting this configuration over to my own web.xml.
  But that didn't work too well, as it seems "/*" has higher precedence
  than "*.jsp". So I took a new look at the Servlet spec, only to find out
  that the "default pattern" is "/", not "/*". I changed DispatcherServlet's
  mapping from /* to just /, and then it worked. Out of curiousity, I then
  removed the explicit *.jsp mapping (to Jasper's JspServlet) to see if that
  would work as well. And it did.


Rewriting Filter

From: "andrew cooke" <andrew@...>

Date: Sat, 11 Feb 2006 22:31:58 -0300 (CLST)

In the same thred, Dave Hewitt posted a link to this rewriter -

Now that I finally understand what's happening, that does indeed look like
the best solution.

Final Tomcat/Spring/UrlRewriter Configuration

From: "andrew cooke" <andrew@...>

Date: Sun, 12 Feb 2006 10:41:00 -0300 (CLST)

OK, this seems to be the best way to get clean URLs with Tomcat and Spring:


    <note>any url without a final file name goes to index</note>
    <to last="false">$1/index$2</to>
    <note>any url without a final file extension goes to .dynamic</note>
    <to last="false">$1/$2.dynamic$3</to>

web.xml (simplified)

<web-app xmlns="http://java.sun.com/xml/ns/j2ee"




Code used to generate value of current form (for referencing in JSP):

public class InitialUrlInterceptor extends HandlerInterceptorAdapter {

  private String dropPostfix = ".dynamic";

  public void setDropPostfix(String dropPostfix) {
    this.dropPostfix = dropPostfix;

  public boolean preHandle(HttpServletRequest req,
                           HttpServletResponse res,
                           Object handler) {
    String path = SessionUtils.getRelativePath(req);
    if (path.endsWith(dropPostfix))
      path = path.substring(0, path.length() - dropPostfix.length());
    req.setAttribute("requestUrl", path);
    return true;


tomcat default servlet patten matching -- thank you!

From: andrew cooke <andrew@...>

Date: Thu, 28 Jan 2010 00:48:29 -0300

[Sorry for the delay in approving this]

Date: Mon, 16 Nov 2009 22:25:40 -0500
From: chris marx <chrismarx@...>

  [...] ", as it seems "/*" has higher precedence
  than "*.jsp". So I took a new look at the Servlet spec, only to find out
  that the "default pattern" is "/", not "/*"."

brilliant thanks so much for posting this saved me so much time!!!!!!

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