How can I read a properties file from a .jar?
When I make a .jar file, In yhe manifest file, I do something like this:
Manifest-Version: 1.0
Main-Class: jeta.adapter.tcp.JetaTCPWrapper
Class-Path: comm.jar commons-codec-1.3.jar
I read a propertes file: jeta.properties
if this file is inside the .jar, no problem, it works correctly. But I need jeta.properties out fo the .jar. I want the the file in the same sirectory than the .jar.
緾an I do it writing something in the manifest file?
[486 byte] By [
jorgiria] at [2007-11-27 5:30:45]
Properties props = new Properties();props.load(MyClass.class.getResourceAsStream("/jeta.properties"));Something like that.
It takes a bit of work to get "out of the jar". Put this code in a method
that you call and example the url displayed.
import java.security.*;
import java.net.*;
...
Class cls = someObject.getClass();
ProtectionDomain domain = cls.getProtectionDomain();
CodeSource source = domain.getCodeSource();
URL url = source.getLocation();
JOptionPane.showMessageDialog(null, url.toString());
That should give you a "file:" protocol URL for the jar containing the .class file involved.
I'm confident that you can parse this URL and use it to construct a path to the external resource you need.
> It takes a bit of work to get "out of the jar". Put
> this code in a method
> that you call and example the url displayed.
> > import java.security.*;
> import java.net.*;
>
> ...
>
> Class cls = someObject.getClass();
> ProtectionDomain domain = cls.getProtectionDomain();
> CodeSource source = domain.getCodeSource();
> URL url = source.getLocation();
> JOptionPane.showMessageDialog(null, url.toString());
>
> That should give you a "file:" protocol URL for the
> jar containing the .class file involved.
> I'm confident that you can parse this URL and use it
> to construct a path to the external resource you need.
Although allowing your classloader to do all the heavy lifting, as in the previous post, is a lot simpler :-)
> Although allowing your classloader to do all the heavy lifting, as in the previous post, is a lot simpler :-)
Willing to bet a donut? The thing is, the resource is *outside the jar*, and methods like getResource(AsStream) don't look outside the jar, even
when given hopeful relative paths like "../../oh/please/oh/please/file.properties" ;-)
Good point... misread the OP.
> > Although allowing your classloader to do all the
> heavy lifting, as in the previous post, is a lot
> simpler :-)
>
> Willing to bet a donut? The thing is, the resource is
> *outside the jar*, and methods like
> getResource(AsStream) don't look outside the jar,
> even
> when given hopeful relative paths like
> "../../oh/please/oh/please/file.properties" ;-)
throws BlindlyFollowingBSampieriInNotReadingTheWordOutsideException() {}
:-)
I'll bet you a donut, but refer you straight to Dr Lazlo, who already owes me one :-)
Ok, I磍l try it. I磎 sure that it磍l work.
Other way to do it is making a variable path: example: PLUGIN_PATH when I call the jar file:
java -DPLUGIN_PATH=/home/invitado/Documentos/plugin_PE/data -jar ./workspace/Jeta407/jeta407TCP.jar 5000
And I use the PLUGIN_PATH in load resource.
regards.
> I'll bet you a donut, but refer you straight to Dr Lazlo, who already owes me one :-)
Then we're even. I am/was Dr Jamf! I got tired of posters missing the
reference to Gravity's Rainbow and thinking I was a professor or sumthin'.
Also, cracking 10K posts and racking up a platinum star gave the
id too much gravitas. I'm just a modest code monkey at heart, so
I decided to go by another name, and shed my skin again. I had a
user name before DrJ, too, but that's ancient history.
All true, now I bid adieu...
> > I'll bet you a donut, but refer you straight to Dr
> Lazlo, who already owes me one :-)
>
> Then we're even. I am/was Dr Jamf! I got tired of
> posters missing the
> reference to Gravity's Rainbow and thinking I was a
> professor or sumthin'.
>
> Also, cracking 10K posts and racking up a platinum
> star gave the
> id too much gravitas. I'm just a modest code monkey
> at heart, so
> I decided to go by another name, and shed my skin
> again. I had a
> user name before DrJ, too, but that's ancient history.
I thought something was fishy when donuts were first mentioned. I knew a combined butcher/baker was a bad idea. Still, nice candlesticks
> Then we're even. I am/was Dr Jamf! I got tired of
> posters missing the
> reference to Gravity's Rainbow and thinking I was a
> professor or sumthin'.
/me feels proud for actually having found the reference, and simultaneously somewhat ashamed for having been bored enough to google the name...
> Also, cracking 10K posts and racking up a platinum star gave the
> id too much gravitas. I'm just a modest code monkey at heart, so
> I decided to go by another name, and shed my skin again. I had a
> user name before DrJ, too, but that's ancient history.
I feel... so... deceived.
> I feel... so... deceived.A mango lassi will cool you down.
