道喜技术日记

Posted by cnruby Mon, 26 May 2008 09:06:00 GMT

《JRuby语言实战技术》预计2008年6月出版

• 封面
  
• 样章
  样章已经在Google cnRails论坛上（需要注册）可以下载了。

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Posted in Ruby语言+JRuby语言

Posted by cnruby Fri, 21 Mar 2008 20:14:00 GMT

JRuby语言内部报道：CRuby语言和JRuby语言的gem命令差异

• 问题提出
  曾经在CRuby和JRuby语言中，命令gem install antwrap或者gem install Antwrap是一样的，但是现在JRuby语言不行了，这是因为它注意区分大小写了。
• JRuby错误命令实例

  jruby -S gem install antwrap -r

  命令执行输出结果

  JRuby limited openssl loaded. gem install jruby-openssl for full support.
  http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL
  ERROR:  could not find antwrap locally or in a repository

• 解决方案

  jruby -S gem install Antwrap -r

  命令执行 输出结果

  JRuby limited openssl loaded. gem install jruby-openssl for full support.
  http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL
  Successfully installed Antwrap-0.7.0-java
  1 gem installed
  Installing ri documentation for Antwrap-0.7.0-java...
  Installing RDoc documentation for Antwrap-0.7.0-java...

• 参考资料
  http://www.hhtong.com/blog1/articles/2007/08/06/infoq-20070806-antwrap

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Posted in Ruby语言+JRuby语言 | Tags antwrap, gem, install, jruby

Posted by cnruby Sat, 26 Jan 2008 21:53:00 GMT

Ruby语言：Ruby程序运行外部程序（三）

require 'Win32API'

def system(cmd)
  sys = Win32API.new "crtdll", "system", ['P'], 'L'
  sys.Call cmd
end

system("d: && cd D:\opt\rails-app && ruby script/server")

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Posted in Ruby语言+JRuby语言 | Tags cmd, ruby, run, system

Posted by cnruby Fri, 25 Jan 2008 21:39:00 GMT

Ruby语言：Ruby程序运行外部程序（二）

require 'Win32API' 
def system(cmd)
  sys = Win32API.new "crtdll", "system", ['P'], 'L'
  sys.Call cmd
end

system("del ./hello.txt") 

require "Shell"

sh = Shell.new
sh.ls "-al ."
sh.cd "/opt/java"

require "Shell"

sh = Shell.new
sh.echo("puts 'Hello World!'") > hello.rb
sh.time("ruby hello.rb")

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Posted in Ruby语言+JRuby语言 | Tags cmd, ruby, run, system

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