deploy/jbossweb-tomcat55.sar/server.xml http://tomcat.apache.org/tomcat-5.5-doc/config/valve.html pattern配置: %a - Remote IP address %A - Local IP address %b - Bytes sent, excluding HTTP headers, or '-' if zero %B - Bytes sent, excluding HTTP headers %h - Remote host name (or IP address if resolveHosts is false) %H - Request protocol %l - Remote logical username from identd (always returns '-') %m - Request method (GET, POST, etc.) %p - Local port on which this request was received %q - Query string (prepended with a '?' if it exists) %r - First line of the request (method and request URI) %s - HTTP status code of the response %S - User session ID %t - Date and time, in Common Log Format %u - Remote user that was authenticated (if any), else '-' %U - Requested URL path %v - Local server name %D - Time taken to process the request, in millis %T - Time taken to process the request, in seconds %I - current request thread name (can compare later with stacktraces) There is also support to write information from the cookie, incoming header, outgoing response headers, the Session or something else in the ServletRequest. It is modeled after the apache syntax: %{xxx}i for incoming request headers %{xxx}o for outgoing response headers %{xxx}c for a specific request cookie %{xxx}r xxx is an attribute in the ServletRequest %{xxx}s xxx is an attribute in the HttpSession The shorthand pattern name common (which is also the default) corresponds to '%h %l %u %t "%r" %s %b'.