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java directory?

java directory?# Java - 爪哇娇娃

c*t2004-03-19 08:03

1 楼

How to find the jar directory my jar file is running from?
For example, my abc.jar could be run by somebody by
java -jar /some/where/abc.jar
or they could run like
java -cp /some/where/abc.jar Main
However, i needed to create/load preferences in the same directory
where abc.jar is located.
Anyone could show me howto?
Thanks a lot

xt2004-03-19 08:03

2 楼

There is no good way to do it. I recommend writing a running
script along with your jar file at distribution. Then ask
the user to run your script instead of directly running
the java command.

h*k2004-03-19 08:03

3 楼

of course there is a good/clean way.
dont make false assumptions because you dont know.

【在 xt 的大作中提到】

: There is no good way to do it. I recommend writing a running
: script along with your jar file at distribution. Then ask
: the user to run your script instead of directly running
: the java command.

d*p2004-03-19 08:03

4 楼

If you are using jdk1.4, you can use
java.util.prefs.Preference
or you can save it to user's home dir,
which is avaliable as system property
"user.home"

【在 c*****t 的大作中提到】

: How to find the jar directory my jar file is running from?
: For example, my abc.jar could be run by somebody by
: java -jar /some/where/abc.jar
: or they could run like
: java -cp /some/where/abc.jar Main
: However, i needed to create/load preferences in the same directory
: where abc.jar is located.
: Anyone could show me howto?
: Thanks a lot