Log4j Fileappender不会创建它应该的文件

Question

I'm trying to log into a html file using Log4j filappender. My properties file looks as follows

log = C:\Log
log4j.rootLogger = DEBUG, FILE

# Define the file appender
log4j.appender.FILE=org.apache.log4j.FileAppender
log4j.appender.FILE.File=${log}/logfile.html

# Define the layout for file appender
log4j.appender.FILE.layout=org.apache.log4j.HTMLLayout
log4j.appender.FILE.layout.Title=log
log4j.appender.FILE.layout.LocationInfo=true

But it didn't create the logfile at C:\\Log so I thought i didn't work at all but i found that it creates the logfile.html and the folder as well within my .netbeans folder (C:Users\\Peter.netbeans\\7.1.1\\config\\GF3\\domain1\\Log). I'm using Netbeans 7.1.1. I haven't used Log4j before and to be honest I have no idea why it does this. Any ideas?

Thanks for your time

Answer 1

This is the line that is defining where to save the logfile: log4j.appender.FILE.File=${log}/logfile.html

If you change that to log4j.appender.FILE.File=C:/log/logfile.html Then it might work.

AFAIK, the first line in your config log = C:\\Log have no effect whatsoever. You can't use variables like that in your config file.

Answer 2

The single backslash in your first line could be the problem:

log = C:\\Log

Either use C:\\Log or C:/Log.

I would write the path directly into

log4j.appender.FILE.File

without using the log = C:\\Log