PatternLayout
Log4j输出格式控制--log4j的PatternLayout参数含义以及详细配置
http://logging.apache.org/log4j/docs/api/org/apache/log4j/PatternLayout.html https://logging.apache.org/log4j/2.x/manual/index.html 参数说明例子 %c 列出logger ......
PatternLayout %d %c %M %L %p %X{context} ...
https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html Conversion CharacterEffect c Used to output the category of the loggi ......