Java log4j返回一些警告

Question

我正在使用org.apache.log4j

我的log4j.properties文件內容如下

log=D:\\logs
log4j.rootLogger=DEBUG, FILE

log4j.appender.FILE=org.apache.log4j.FileAppender
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss} %m%n

log4j.appender.successLog=org.apache.log4j.FileAppender
log4j.appender.successLog.File=${log}\\success_log_${current.date}
log4j.appender.successLog.layout=org.apache.log4j.PatternLayout
log4j.appender.successLog.Append=false
log4j.appender.successLog.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss} %m%n

log4j.appender.errorLog=org.apache.log4j.FileAppender
log4j.appender.errorLog.File=${log}\\error_log_${current.date}
log4j.appender.errorLog.layout=org.apache.log4j.PatternLayout
log4j.appender.errorLog.Append=false
log4j.appender.errorLog.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss} %m%n

log4j.category.successLogger=DEBUG, successLog
log4j.additivity.successLogger=false

log4j.category.errorLogger=DEBUG, errorLog
log4j.additivity.errorLogger=false

當我運行它時，它可以正常運行，但是會給我以下警告

log4j:WARN File option not set for appender [FILE].
log4j:WARN Are you using FileAppender instead of ConsoleAppender?

Answer 1

您尚未指定應將日志寫入FILE Logger的FILE 。 請在下面指定屬性以避免此警告：

log4j.appender.FILE.File=path-to-log-file