||Monitoring Local and Remote Applications Using JMX 1.2 and JConsole|
|Subject:||Also for web applications!|
Don't forget you can monitor your application servers with JMX too. Most of them come with built-in MBeans.
For even more details on what's going on in your webapps, you can install MessAdmin (http://messadmin.sourceforge.net) .
MessAdmin is notification system and Session administration for J2EE Web Applications, giving detailed statistics and informations on any Web application. It is light-weight and non-intrusive, and installs as a plug-in to any Java EE WebApp, and requires zero-code modification. Check it out!