Logback Pattern Syntax Quick Reference
Common Conversion Specifiers
Date and Time
%d{pattern}: Outputs the current timestamp. For example, %d{yyyy-MM-dd HH:mm:ss.SSS} yields 2024-07-11 15:34:55.123.
Log Level
%level or %p: Renders the log severity (e.g., INFO, DEBUG, WARN, ERROR).
Message and Source Context
%msg or %m: The actual log message.
%C or %class: Fully qualified class ...
Posted on Sun, 09 Aug 2026 16:54:34 +0000 by MishaPappa