How to read logback configuration file from system

2019-07-07 07:51发布

问题:

Let me tell the story first:

We have 2 j2ee web applications AAA and BBB, and we want to put them in the same server.

Right now they both have the logback.xml in their class path, which is in /src/main/resources for the maven project.

We want to put all the configuration files in a directory, such as ${app_home}, and let the web applications to find their configuration files by themselves.

Like we put AAA_logback.xml and BBB_logback.xml into ${app_home}, and let the web application to find them automatically.

We use Tomcat 7 to deploy the web applications, if we want to achieve this, do we need any change on Tomcat 7 configuration?

There is a similar question: How to read Logback configuration file from path outside the war file?

I wish I ask my question clearly with my poor English.

回答1:

I would suggest you to keep the original logback.xml in the respective classpaths itself and include the actual stuff from ${app_home}/...

see www.logback.qos.ch/manual/configuration.html#fileInclusion

In this way you can specify different files for different apps.