在Log4j的日志条目中包含日志文件名

Question

I have a requirement to include the name of the log file in the log entry itself.

For example say final name of the log file is something like trx_log.2014-09-22-12-42 the log entries I'm printing that log should have that same name. Following is a example log entry.

123456|test value|xyz|trx_log.2014-09-22-12-42

I'm using Log4j DailyRollingFileAppender to print the log at the moment. Is there a way which I can get this requirement implemented using some log4j/logback configuration.

Answer 1

Not that I'm aware of.

But a solution does exist nevertheless: write your own custom extension of the DailyRollingFileAppender .

Please note though the filename will be available to your custom appender only: in case you want to use such information in another appender (the only use case I can think of this might be of any use) then you need a more convoluted solution using a shared data storage (shared memory, file system, database, whatever) with the simplest solution being a static member of your just made appender. In this case the other appender (lat's say Console) need to be extended as well in order to append the new information to the log statement.

Answer 2

Use this method logger.getName()

logger.log(Level.SEVERE,"Exception in "+e.getMessage()+logger.getName());