打包在不同的OS中时，java.util.Logger的行为有所不同

Question

I run a java program from a jar file in Linux Redhat 4.3 and use eclipse for creating the jar file from my project.

If I create the jar file when running eclipse in linux everything is ok (normal logfile name and normal text format in the logfile).

However, if I create the jar when running eclispe under WinXP (and send it to my linux server via ftp) the logfile name is java0.log.0 and the text inside is in XML.

one more thing - my program uses SimpleFormatter as the formatter for the log file.

any ideas?

Answer 1

java.util.logging.FileHandler will log by default as XML. So I wonder if you're not specifying the path to your logging configuration properly. Thus it'll work on Linux, but not on Windows.

Answer 2

How are you creating the Jar file "in eclipse"? Are you using Eclipse's Export -> Java -> JAR File? Or are you running an ANT or Maven script through Eclipse?

If you're just exporting from Eclipse directly - I'd recommend using ANT or Maven to get a repeatable build process not tied to the IDE.

If you're building from ANT or Maven, I'd check for local configuration overriding something to do with logging in the build script.

It may also be that there's a platform specific path embedded in the application or build script and your log4j properties file isn't being found, so log4j is just going with defaults. Though, I'm not sure if XML formatting and the log file name format you specified is the default.

Answer 3

您的计算机可能使用了不同的JAVA编译器版本-也许在版本之间存在不同的默认行为。