Rails 3 中的路由错误

Question

我正在升级在 Jruby 1.4 和 1.4 上运行的应用程序导轨2.3 到 Rails 3.1.0 和 jruby 1.6。我按照 Rails 3 升级手册 Jeremy，并使用插件rails_upgrade，但是当我启动服务器时 我收到错误。就像

Routing Error
cannot load Java class com.mysentry.persistence.HibernateUtil 

有人请帮助我一样。这是错误日志

Started GET "/admin/login/en/sentry" for 127.0.0.1 at Wed Sep 28 13:13:56 -0400
2011

ActionController::RoutingError (cannot load Java class com.mysentry.persistence.
HibernateUtil):
org/jruby/javasupport/JavaClass.java:1204:in `for_name'
org/jruby/javasupport/JavaUtilities.java:34:in `get_proxy_class'
 C:/upgrade/jruby-1.6.4/lib/ruby/site_ruby/shared/builtin/javasupport/core_ext/
 object.rb:46:in `java_import'
C:/upgrade/jruby-1.6.4/lib/ruby/site_ruby/shared/builtin/javasupport/core_ext/
object.rb:26:in `include_class'
lib/sentry/interceptor/transaction_interceptor.rb:5:in `Interceptor'
lib/sentry/interceptor/transaction_interceptor.rb:2:in `Sentry'
lib/sentry/interceptor/transaction_interceptor.rb:1:in `(root)'
 org/jruby/RubyKernel.java:1038:in `require'
polyglot (0.3.2) lib/polyglot.rb:63:in `require'
 activesupport (3.1.0) lib/active_support/dependencies.rb:240:in `require'
 activesupport (3.1.0) lib/active_support/dependencies.rb:223:in `load_dependen
cy'
activesupport (3.1.0) lib/active_support/dependencies.rb:640:in `new_constants
_in'
activesupport (3.1.0) lib/active_support/dependencies.rb:639:in `new_constants
_in'
activesupport (3.1.0) lib/active_support/dependencies.rb:223:in `load_dependen
 cy'
activesupport (3.1.0) lib/active_support/dependencies.rb:240:in `require'
lib/sentry/interceptor/transaction_interceptor.rb:7:in `Dispatcher'
lib/sentry/dispatcher/application_dispatcher.rb:3:in `Sentry'
lib/sentry/dispatcher/application_dispatcher.rb:2:in `(root)'
org/jruby/RubyKernel.java:1038:in `require'
polyglot (0.3.2) lib/polyglot.rb:63:in `require'

Answer 1

我怀疑您在 lib 或 Rails 2.3 自动加载的其他文件夹中有 jar 文件，包括 hibernate jar，

请查看

http://hemju.com/2010/09/22/rails-3-quicktip-autoload-lib-directory-include-all-subdirectories/

您可能仍然需要包含以下要求Jens 在他的评论中描述了这一点。

Answer 2

最后我找到了解决方案，在Windows中我们需要先加载类，然后加载jar文件。

就像（这真的很奇怪！）

 set CLASSPATH = %<project_name>%\classes;%<project_name>%\lib\java\ant-antlr-1.6.5.jar;....

除了我们需要包括课程之外，

   include_class '<your class>.persistence.HibernateUtil'

感谢您的所有帮助。