Hi,

As you may know url rewriting feature is not a nice thing when spiders
come to index your site -
http://gabrito.com/post/javas-seo-blunder-jsessionid.

There are a few solutions I'm thinking of:

  * configuration at Tomcat / web.xml level to disable/enable url
   rewriting (unfortunately Tomcat doesn't support it)
  * do not use <c:url, <html:link, and similiar tags - could be quite
   expensive when working with Strurs or other framework
  * extend classes for <c:url, <html:link and other tags not to make
   use of url rewriting - seems quite a good solution, but could be a
   problem with legacy applications
  * apply a filter in web.xml to remove ;jsessionid=XXX from the
   generated output - I'm afraid it'd be quite resource expensive
   (lots of string operations)
  * apply a filter in web.xml to inject custom HttpServletResponse
   implementation with empty encodeURL method - seems quite interesting
  * apply a similiar filter at the apache level (I assume one is uing
   apache as a fronted to tomcat) - I didn't benchmark it, but I
   suppose that a perl filter would be faster than similiar Java one

What are your opinions?

--
Mikolaj Rydzewski <miki@(protected)>