Question

我在Windows XP机器上安装了JRuby 1.6.0。我还下载了Google gdata库。这段代码：

require "java"
$CLASSPATH << "D:\\javalib\\gdata\\java\\lib\\*"
include_class "com.google.gdata.client.docs"

给出了这个错误：

org/jruby/javasupport/JavaClass.java:1052:in `for_name': cannot load Java class
com.google.gdata.client.docs (NameError)
        from org/jruby/javasupport/JavaUtilities.java:34:in `get_proxy_class'
        from C:/jruby-1.6.0.RC1/lib/ruby/site_ruby/shared/builtin/javasupport/co
re_ext/object.rb:46:in `java_import'
        from C:/jruby-1.6.0.RC1/lib/ruby/site_ruby/shared/builtin/javasupport/co
re_ext/object.rb:26:in `include_class'
        from download_gdocs.rb:5:in `(root)'

Google gdata Java库位于D:\javalib\gdata\java\lib。例如，如果我输入jar tvf D:\javalib\gdata\java\lib\gdata-client-1.0.jar，我会得到（部分）这个：

     0 Fri Feb 04 15:25:54 PST 2011 com/google/gdata/data/docs/
   904 Fri Feb 04 15:25:54 PST 2011 com/google/gdata/client/docs/DocsService$Versions.class
  6686 Fri Feb 04 15:25:54 PST 2011 com/google/gdata/client/docs/DocsService.class

Answer 1

$CLASSPATH不支持glob表达式。相反，require每个.jar单独：

Dir["D:\\javalib\\gdata\\java\\lib\\*.jar"].each { |jar| require jar }

Windows中的JRuby和CLASSPATH

1 个答案: