Re: How can I modify the java.library.path in Tomcat?
Andi Heusser wrote:
I have a web application where I need to load some 3rd party libraries
DLLs) and I would like to have these DLLs in a subdirectory in my app
(webapps/MyApp/WEB-INF/lib). However when I try to do a 'loadLibrary' it
fails to find them. I then noticed that the 'Tomcat/bin' directory is in
this path and if I copy the DLLs in there, then it works fine.
I've tried to set the system property inside my app in the static
initializer of the main class but that doesn't seem to work. I basically
tried to do the following:
static{
String libPath = System.getProperty(java.library.path);
String myLibPath = System.getProperty(myapp.lib.path);
//env var set in PC's system variables (WinXP)
System.setProperty(java.library.path, libPath +
File.pathSeparator + myLibPath);
}
This is not Tomcat specific. java.library.path is readonly, so this won't
work. You'll have to set the property on startup of the JVM, i. e.
add -Djava.library.path=your path to the JVM's arguments.
I also looked through the Tomcat conf files but I couldn't find any place
where I could properly set or override the java.library.path.
Is there a way to set this in Tomcat or will I have to copy the DLLs into
Tomcat's bin directory?
If you start Tomcat with the shell scripts, you can create a file named
setenv.sh (resp. setenv.bat on Windows) where JAVA_OPTS is set appropriately.
If you use the service launcher, you'll have to define this somewhere in the
GUI.
Regards
mks
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How can I modify the java.library.path in Tomcat?
Hi,
I have a web application where I need to load some 3rd party libraries DLLs)
and I would like to have these DLLs in a subdirectory in my app
(webapps/MyApp/WEB-INF/lib). However when I try to do a 'loadLibrary' it
fails to find them. I then noticed that the 'Tomcat/bin' directory is in
this path and if I copy the DLLs in there, then it works fine.
I've tried to set the system property inside my app in the static
initializer of the main class but that doesn't seem to work. I basically
tried to do the following:
static{
String libPath = System.getProperty(java.library.path);
String myLibPath = System.getProperty(myapp.lib.path);
//env var set in PC's system variables (WinXP)
System.setProperty(java.library.path, libPath +
File.pathSeparator + myLibPath);
}
I also looked through the Tomcat conf files but I couldn't find any place
where I could properly set or override the java.library.path.
Is there a way to set this in Tomcat or will I have to copy the DLLs into
Tomcat's bin directory?
Thanks.
Regards,
Andi
Re: How can I modify the java.library.path in Tomcat?
--- Andi Heusser [EMAIL PROTECTED] wrote:
Hi,
I have a web application where I need to load some
3rd party libraries DLLs)
and I would like to have these DLLs in a
subdirectory in my app
(webapps/MyApp/WEB-INF/lib). However when I try to
do a 'loadLibrary' it
fails to find them. I then noticed that the
'Tomcat/bin' directory is in
this path and if I copy the DLLs in there, then it
works fine.
I've tried to set the system property inside my app
in the static
initializer of the main class but that doesn't seem
to work. I basically
tried to do the following:
static{
String libPath =
System.getProperty(java.library.path);
String myLibPath =
System.getProperty(myapp.lib.path);
//env var set in PC's system variables (WinXP)
System.setProperty(java.library.path,
libPath +
File.pathSeparator + myLibPath);
}
I also looked through the Tomcat conf files but I
couldn't find any place
where I could properly set or override the
java.library.path.
Is there a way to set this in Tomcat or will I have
to copy the DLLs into
Tomcat's bin directory?
Thanks.
Regards,
Andi
I like finer control over loading native files. I use
System.load instead. You can get your web app path
from the Servlet API. It makes it easier and you
don't have to make sure your library is on a path.
Wade
-
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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