loading JAR's from a URL

[MJK]

I am loading a JAR file from a URL. It loads OK. What I want to do,
is use the classes defined in the JAR file as if they were loaded from
the CLASSPATH. Does anyone know if this is possible?

 

[John Keyes]

Michael:
You need to do some reading up on classloaders. Check out this part of
the JNDI Tutorial
(http://java.sun.com/products/jndi/tutorial/beyond/misc/classloader.html)
which shows how to use URLClassLoader and the Javadoc for
URLClassLoader(http://java.sun.com/j2se/1.4.2/docs/api/java/net/URLClassLoader.html).

This article (http://www.developer.com/java/other/article.php/2248831)
"Java Class Loading: The Basics" is a good read also.

 

[Andrew Thompson]

I am loading a JAR file from a URL. It loads OK. What I want to do,
is use the classes defined in the JAR file as if they were loaded from
the CLASSPATH. Does anyone know if this is possible?

John's suggestion will work, an alternative might be to
use JWS to install the app. and the jars for the user.
<http://www.physci.org/codes/javafaq.jsp#jws>

HTH

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Andrew Thompson
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