Java 当我们在 log4j 中使用基于大小的日志文件时，如何在日志文件名中添加时间戳？
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How to add timestamp to the log file name when we are using size based log files in log4j?
提问by rana
I want to create size based log files. I am setting the following entry in the log4j.properties file:
我想创建基于大小的日志文件。我在 log4j.properties 文件中设置以下条目：
log4j.appender.UserFileAppenderDebug=org.apache.log4j.RollingFileAppender
log4j.appender.UserFileAppenderDebug.Threshold=TRACE
log4j.appender.UserFileAppenderDebug.File=../log/coordinator-debug.log
log4j.appender.UserFileAppenderDebug.MaxFileSize=1KB
log4j.appender.UserFileAppenderDebug.MaxBackupIndex=7
log4j.appender.UserFileAppenderDebug.layout=org.apache.log4j.PatternLayout
log4j.appender.UserFileAppenderDebug.layout.ConversionPattern=%m%n
multiple log files are created based on size but with following names:
根据大小创建多个日志文件，但名称如下：
-rw-r--r-- 1 root root 32 Aug 6 11:28 coordinator-debug.log
-rw-r--r-- 1 root root 1.1K Aug 6 11:28 coordinator-debug.log.1
-rw-r--r-- 1 root root 1.1K Aug 6 11:28 coordinator-debug.log.2
-rw-r--r-- 1 root root 1.2K Aug 6 11:28 coordinator-debug.log.3
-rw-r--r-- 1 root root 1.1K Aug 6 11:28 coordinator-debug.log.4
-rw-r--r-- 1 root root 1.1K Aug 6 11:28 coordinator-debug.log.5
-rw-r--r-- 1 root root 1.1K Aug 6 11:28 coordinator-debug.log.6
-rw-r--r-- 1 root root 1.1K Aug 6 11:28 coordinator-debug.log.7
I would like to have the file name as follows
我想要文件名如下
coordinator-debug.log.2013-08-01 11:28:39, 232
I would appreciate if you please share your comments/suggestions.
如果您能分享您的意见/建议，我将不胜感激。
Thanks.
谢谢。
回答by MrSimpleMind
Have you tried:
你有没有尝试过：
log4j.appender.UserFileAppenderDebug.DatePattern='.'yyyy-MM-dd_HH-mm-ss
log4j.appender.UserFileAppenderDebug.DatePattern='.'yyyy-MM-dd_HH-mm-ss
(remember that your filename will not allow : e.g 11:28:39, you will need to replace them to e.g. 11-28-39 )
（请记住，您的文件名不允许：例如 11:28:39，您需要将它们替换为例如 11-28-39 ）
(edited)
（已编辑）
Sorry, I thought you used the *Daily*RollingFileAppender...
抱歉，我以为你使用了 * Daily*RollingFileAppender ...
There are RollingPolicys that you might use to get filename pattern for the RollingFileAppender.
您可以使用 RollingPolicys 来获取 RollingFileAppender 的文件名模式。
E.g.
例如
log4j.appender.UserFileAppenderDebug.RollingPolicy=org.apache.log4j.rolling.TimeBasedRollingPolicy
log4j.appender.UserFileAppenderDebug.RollingPolicy.FileNamePattern=../log/coordinator-debug.log.%d{yyyy-MM-dd-HH-mm-ss}
