ruby savon jruby的问题

Question

我正在尝试使用savon Gem，以便与webServices进行交互。所以我安装了它，看起来安装是正常的：

gem list savon
*** LOCAL GEMS ***
savon (1.2.0)

我可以用这个简单的命令来测试它：

ruby -rubygems -e 'require "savon"'

(多亏了这篇技巧http://wiki.mccune.org.uk/index.php/Backtrack，我没有更多的错误了)

当我想使用一个需要savon的.rb脚本时，就会出现这个问题：

jruby -S buby -i -B /pentest/web/burpsuite/burpsuite_v1.4.01.jar -r /home/fred/soapAtk2.rb 

/usr/lib/jruby//lib/ruby/site_ruby/shared/builtin/javasupport/core_ext/object.rb:75 warning: already initialized constant StartBurp
Your JRE appears to be OpenJDK. 
Burp has not been fully tested on this platform and you may experience problems.
Loading: "/home/fred/soapAtk2.rb"

/usr/lib/jruby//lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in **`require': no such file to load -- savon** (LoadError)
    from /usr/lib/jruby//lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /home/fred/soapAtk2.rb:3
    from /home/fred/soapAtk2.rb:31:in `require'
    from /usr/lib/jruby//lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /usr/lib/jruby/lib/ruby/gems/1.8/gems/buby-1.3.1-java/bin/buby:63
    from /usr/lib/jruby/lib/ruby/gems/1.8/gems/buby-1.3.1-java/bin/buby:63:in `each'
    from /usr/lib/jruby/lib/ruby/gems/1.8/gems/buby-1.3.1-java/bin/buby:63
    from /usr/lib/jruby/lib/ruby/gems/1.8/gems/buby-1.3.1-java/bin/buby:19:in `load'
    from /usr/lib/jruby/bin/buby:19

似乎有一个环境问题，但我想不出如何解决它:-/

ruby -r rubygems -e "p Gem.path"

["/root/.gem/ruby/1.9.2", "/usr/lib/ruby/gems/1.9.2"]

# gem content savon

/var/lib/gems/1.9.2/gems/savon-1.2.0/.gitignore

/var/lib/gems/1.9.2/gems/savon-1.2.0/.rspe
...
...

其他信息

# ruby -v
ruby 1.9.2dev (2010-07-02) [x86_64-linux]
# gem -v
1.3.7

有没有人遇到过同样的问题(我运行的是backtrack5上一版)

谢谢‘

Answer 1

看起来你有两颗红宝石，系统红宝石(1.9.2dev)和jruby。当您运行ruby或gem时，它会获取系统ruby，而jruby -S buby命令则会获取jruby。

如果您运行以下命令：

jruby -rubygems -e 'require "savon"'

这很可能会失败。

要在jruby实例上安装savon，请运行：

jruby -S gem install savon

这应该可以解决这个问题。