JRuby加载路径搞砸了 [英] JRuby loadpath messed up

问题描述

我在一个JAR文件上嵌入了JRuby，它正被我部署到WebSphere的EAR文件使用。当我从我的工作区调用该类时，它工作正常，但是当我在WebSphere中调用它时，这就是我得到的：

I am embedding JRuby on a JAR file and it's being used by a EAR file that I am deploying to WebSphere. When I call the class from my workspace, it works fine, however when I call it inside WebSphere, here's what I get:

[3/31/11 11:21:15:984 BRT] 00000042 SystemErr     R classpath:/lib/xmlcompare.rb:4:in `require': no such file to load -- rubygems (LoadError)
    from classpath:/lib/xmlcompare.rb:4
    from classpath:/lib/xmlcompare.rb:1:in `require'
    from <script>:1

经过一些研究，我注意到当我从命令行运行JAR文件中的代码时，loadpath看起来像这样：

After some research, I noticed that when I run the code in the JAR file from the command line, the loadpath looks like this:

lib
lib/gems/builder-3.0.0/lib
lib/gems/rainbow-1.1.1/lib
lib/gems/syntax-1.0.0/lib
lib/gems/xml-simple-1.0.14/lib
file:/C:/RSA/workspace/sdops-XmlCompare/pkg/XmlCompare.jar!/META-INF/jruby.home/lib/ruby/site_ruby/1.8
file:/C:/RSA/workspace/sdops-XmlCompare/pkg/XmlCompare.jar!/META-INF/jruby.home/lib/ruby/site_ruby/shared
file:/C:/RSA/workspace/sdops-XmlCompare/pkg/XmlCompare.jar!/META-INF/jruby.home/lib/ruby/1.8
.

然而，在将JAR部署到WebSphere（与EAR捆绑在一起）之后，这里是loadpath的外观：

However, after the JAR is deployed to WebSphere (bundled with an EAR), here's how the loadpath looks:

lib
lib/gems/builder-3.0.0/lib
lib/gems/rainbow-1.1.1/lib
lib/gems/syntax-1.0.0/lib
lib/gems/xml-simple-1.0.14/lib
C:/WINDOWS/TEMP//lib/ruby/site_ruby/1.8
C:/WINDOWS/TEMP//lib/ruby/site_ruby/shared
C:/WINDOWS/TEMP//lib/ruby/1.8
.

我尝试在加载路径中添加更多条目：

I have tried adding a few more entries to the loadpath:

制作：

lib
lib/gems/builder-3.0.0/lib
lib/gems/rainbow-1.1.1/lib
lib/gems/syntax-1.0.0/lib
lib/gems/xml-simple-1.0.14/lib
META-INF/lib/ruby/site_ruby/1.8
META-INF/lib/ruby/site_ruby/shared
META-INF/lib/ruby/1.8
C:/WINDOWS/TEMP//lib/ruby/site_ruby/1.8
C:/WINDOWS/TEMP//lib/ruby/site_ruby/shared
C:/WINDOWS/TEMP//lib/ruby/1.8
.

但这没有任何改变。

你有什么线索在WebSphere内部运行时加载路径被破坏以及如何修复它？

Do you have any clue why the loadpath gets corrupted when running inside WebSphere and how to fix it?

推荐答案

尝试将以下内容添加到$ LOAD_PATH：

Try adding the following to $LOAD_PATH:

META-INF/jruby.home/lib/ruby/site_ruby/1.8
META-INF/jruby.home/lib/ruby/site_ruby/shared
META-INF/jruby.home/lib/ruby/1.8

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