每个日志条目带有时间戳的log4j [英] log4j with timestamp per log entry

问题描述

这是我的日志输出

INFO main digestemails - process inbox
INFO main digestemails - checking for emails in c:\development\DCMail\email\KN-Source
INFO main digestemails - digesting [e-mail]
INFO main digestemails - extracting attachments
INFO main digestemails - no attachments or no attachments supported
INFO main digestemails - updating database
INFO main digestemails - email -> COMPLETED folder
INFO main digestemails -  

我想要每个日志消息的时间戳，即

I would like a time stamp per log message ie

INFO 2008-12-25 13:14:00 digestemails - email -> COMPLETED folder

这是我的log4j配置文件

here is my log4j config file

log4j.rootLogger=debug, stdout, R

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n

log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=c:\\development\\DCMail\\logs\\digestlogfolder\\digest-logfile.log

log4j.appender.R.MaxFileSize=100KB
# Keep one backup file
log4j.appender.R.MaxBackupIndex=1

log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n 

我该怎么做?

推荐答案

在PatternLayout中使用%d.

Use %d in your PatternLayout.

%d也可以采用%d{dd MMM yyyy HH:mm:ss,SSS}中的格式模式，您可以选择所需的元素.如果省略格式模式，则日期将为ISO8601格式.

Also %d can take a format pattern as in %d{dd MMM yyyy HH:mm:ss,SSS} you can pick and choose the elements that you want. When the format pattern is omitted the date will be in ISO8601 format.

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