log4j分級 分檔案配置

# to info file

log4j.rootLogger=INFO,R_INFO,R_ERROR

log4j.appender.R_INFO=org.apache.log4j.RollingFileAppender

log4j.appender.R_INFO.File=info.log

log4j.appender.R_INFO.layout=org.apache.log4j.PatternLayout

log4j.appender.R_INFO.layout.ConversionPattern=[%t] (%F,%L) %d{yyyy-MM-dd HH:mm:ss,SSS} %m%n

log4j.appender.R_INFO.MaxFileSize=50000KB

log4j.appender.R_INFO.MaxBackupIndex=90

# to error file

log4j.appender.R_ERROR=org.apache.log4j.RollingFileAppender

log4j.appender.R_ERROR.file=error.log

log4j.appender.R_ERROR.Threshold=ERROR

log4j.appender.R_ERROR.MaxFileSize=50000KB

log4j.appender.R_ERROR.MaxBackupIndex=20

log4j.appender.R_ERROR.layout=org.apache.log4j.PatternLayout

log4j.appender.R_ERROR.layout.ConversionPattern=[%t] (%F,%L) %d{yyyy-MM-dd HH:mm:ss,SSS} %m%n