如何从部署在同一tomcat中的另一个war文件重新配置war文件的log4j

Question

I have two war files WARA and WARB deployed in a tomcat, both use same log4j properties file. How to reset the log4j configurations in both war files through another stand alone application deployed in same tomcat without disturbing WARA and WARB? Is it possible to do?

Answer 1

If polling is an option you can use PropertyConfigurator.configureAndWatch() .

More here .

If you need to do it manually the process is bit longer. On a high level its as follows.

1. Configure JMX for your application server / servlet container.
2. Write an MBean to trigger full reconfiguration.
3. Register the MBean in WARA and WARB.
4. Connect to the MBean server from the other webapp.
5. Invoke the MBean in WARA and WARB.

If you can provide more details on what software stack your are using I may be able to provide specific details on how to do the above.

Answer 2

不是最好的方法，而是制作一个包含属性文件的jar文件，并将其放置在tomcat lib文件夹中，所有应用程序都使用相同的propertyfiles。