Logback使用哪个配置文件？

Question

是否有一个系统属性可以让Slf4J和Logback知道它找到了哪个logback.xml和logback-test.xml文件以及它正在使用哪个文件？我期望在日志本身或System.out中看到。

例如，我有一个Java项目，显然没有src/main/resources/logback.xml也没有src/test/resources/logback-test.xml文件，但Logback似乎在我运行我的单元测试时找到一个。我确实有多达100个依赖关系（理论上应该包括logback.xml）并且逐个检查它们是不切实际的。

请注意，我不能在我的配置文件中使用<configuration debug="true">，因为我不知道我的配置文件在哪里开始。我想同样的效果。

Answer 1

使用-Dlogback.debug=true正如托尼在评论中所述。 那么这表明了：

15:14:22,155 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy] 
15:14:22,156 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback-test.xml] at [file:/.../target/test-classes/logback-test.xml] 
15:14:22,333 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender] 
15:14:22,338 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [consoleAppender] 
15:14:22,354 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA - Assuming default type [ch.qos.logback.classic.encoder.PatternLayoutEncoder] for [encoder] property 
15:14:22,378 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [org.optaplanner] to INFO 
15:14:22,379 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to WARN 
15:14:22,379 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [consoleAppender] to Logger[ROOT] 
15:14:22,379 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration. 
15:14:22,380 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@1e965684 - Registering current configuration as safe fallback point 

从中明确此行重要的：

... - Found resource [logback-test.xml] at [file:/.../target/test-classes/logback-test.xml] 

如果没有显示出来，它或者使用默认的日志配置（一切DEBUG）或无法识别的系统属性。祝你好运算出它是哪种情况（vote for this jira）。