Java log4j 返回一些警告

Question

我正在使用org.apache.log4j

下面给出了我的 log4j.properties 文件内容

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

当我运行它时，它运行正常，但它给了我以下警告

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 FILE Logger 的日志应写入哪个文件。请指定以下属性以避免此警告:

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