Skip to content

Instantly share code, notes, and snippets.

@jarek-przygodzki

jarek-przygodzki/maven-add-timestamps-to-log.md

Created November 29, 2019 08:57
Show Gist options
  • Save jarek-przygodzki/a85499c9b1b5e11fe993a17604c925b3 to your computer and use it in GitHub Desktop.
Save jarek-przygodzki/a85499c9b1b5e11fe993a17604c925b3 to your computer and use it in GitHub Desktop.
Download ZIP
How to add timestamps to Maven log
Raw
maven-add-timestamps-to-log.md

Maven is using SLF4J for its logging. Its default binding is an extended simple logger flavor of SLF4J, which means it can be configured using simplelogger.properties file (in Maven conf/logging directory) or using system properties.

To add timestamps to log output we need two properties:

  • org.slf4j.simplelogger.showDateTime: a boolean to add the timestamp in the output
  • org.slf4j.Simplelogger.dateTimeFormat: a SimpleDateFormat which formats the timestamp activated by previous property

We can do it permamently in the simplelogger.properties file or add these system properties on the JVM, possibly using MAVEN_OPTS

-Dorg.slf4j.simpleLogger.showDateTime=true -Dorg.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss,SSS
@ichengzi
Copy link

-Dorg.slf4j.simpleLogger.showDateTime=true -Dorg.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss.SSS -Dorg.slf4j.simpleLogger.showThreadName=true showThreadName also work

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment