在Java ClassPath中设置网络位置

Question

I am trying to run a Java Program on Windows machines. Libraries for program are placed on a network location - \\\\libs\\myprog . I can't create a network drive on my windows machine .

Now question is, how to set Java Classpath for above lib?

I tried following:

java -cp \\libs\myprog Main

java -cp //libs/myprog Main

But nothing worked.

Answer 1

If you are desparate and you really need this (beware: it is lousy from design and performance point of view), you can use a URLClassLoader for retrieving those libraries at runtime. Just configure the URLs you want to load the libs from eg at application start at argument to the main class or as System property and hand them over to a URLClassLoader which then can retrieve the classes (probably a lot slower and more risky then local file system access, but it will work). Have a look at the Javadoc: URLClassLoader javadoc

Answer 2

In theory, you can complete your work by "java -javaagent:**.jar=option -jar your.jar".

Just as far as i know, you can load Class using URLClassLoader etc from the remote server in agent Class.

But, it maybe work, because i just coded agent application.

Answer 3

There is no need to do anything special (I checked it with Java 7).

My program was not working because there was some typo. So, if I have to add a jars from a network path

\\\\remote\\libs to my program's classpath, then all I need is to fire following command:

java -cp local.jar;\\remote\libs\*;. MAIN

That is all!!