HttpLoggingFilter can be configured as a normal filter in web.xml. It takes an (optional) <init-param> "format". "format" should be a string which controls the output of the HttpLoggingFilter. All characters in the format string will be printed normally, except for those found in the following table:

Request parameter/ output	Formatting String	Request Object Access Method
Method	%M	getMethod()
Scheme	%C	getScheme()
Server	%S	getServerName()
Port	%P	getServerPort()
Request URI	%U	getRequestURI()
Content Length	%L	getContentLength()
Query String	%Q	getQueryString()
Session Id	%I	getSession().getId()
Auth Principal	%A	calculated
%	%%	NA

-- TravisVachon - 14 Nov 2006