记得两年前使用ror做网站,自动生成功能记忆犹新,只是当时网络知识实在缺乏,体会不到其中的乐趣。现在了解的很多了,书也有两本,一直想重新体验最新版做个网站。安装这个过程实在有点坑爹,查找网上若干ror的书包括2012年版的书,按照上面的步骤都没法安装完成,搞得我一会在linux下试验,一会在windows下试验,都没成功,只好放下。时间花不少,很不爽的体验。  
    好在,过了一段时间,忽然想看看ruby的那两本书,然后就爱上这个语言了。于是做一些想做的试验,一些试验需要做些配置,对安装目录也就了解了。下载一些插件居然自己跑到了ruby的下载页。看到上面居然一个版本有3样要下的,帮助文件和安装文件不就够了吗。还要一个mingw做工具么?这个不是有自己的官网下载么。也没管。想起ruby目录下include中有i386-mingw32,才联系起来。应该是以mingw做make工具的。rails应该需要make,因为每次安装都抛出make出错信息。虽然有mingw官网,但这里应该是做成自己的插件。于是到下载页http://rubyforge.org/frs/?group_id=167下载相应版本的mingw32工具解压覆盖到安装目录中,要是怕出问题先对目录做备份    
  另外下载不了的都cross wall下载      
C:\Documents and Settings\Administrator>gem install rails  
ERROR:  Error installing rails:  
        The 'json' native gem requires installed build tools.    
Please update your PATH to include build tools or download the DevKit  
from 'http://rubyinstaller.org/downloads' and follow the instructions  
at 'http://github.com/oneclick/rubyinstaller/wiki/Development-Kit'    
  还有错,但明显不是曾经报的make错误了。  
  按照网址下载和遵从上面的方法安装即可(下面的命令即是按照安装方法安装的)  
  其中config.yml文件仅仅描述ruby所在路径,修改成你的ruby路径即可    
D:\>cd D:\Ruby192\devkit    
D:\Ruby192\devkit>ruby dk.rb init  
[INFO] found RubyInstaller v1.9.2 at D:/Ruby192    
Initialization complete! Please review and modify the auto-generated  
'config.yml' file to ensure it contains the root directories to all  
of the installed Rubies you want enhanced by the DevKit.    
D:\Ruby192\devkit>ruby dk.rb review  
Based upon the settings in the 'config.yml' file generated  
from running 'ruby dk.rb init' and any of your customizations,  
DevKit functionality will be injected into the following Rubies  
when you run 'ruby dk.rb install'.    
D:/Ruby192    
D:\Ruby192\devkit>ruby dk.rb install  
[INFO] Updating convenience notice gem override for 'D:/Ruby192'  
[INFO] Installing 'D:/Ruby192/lib/ruby/site_ruby/devkit.rb'    
D:\Ruby192\devkit>gem install rdiscount --platform=ruby  
Fetching: rdiscount-1.6.8.gem (100%)  
Temporarily enhancing PATH to include DevKit...  
Building native extensions.  This could take a while...  
Successfully installed rdiscount-1.6.8  
1 gem installed  
Installing ri documentation for rdiscount-1.6.8...  
Installing RDoc documentation for rdiscount-1.6.8...    
D:\Ruby192\devkit>ruby -rubygems -e "require 'rdiscount'; puts RDiscount.new('**  
Hello RubyInstaller**').to_html"  
<p><strong>Hello RubyInstaller</strong></p>    
下面安装rails    
D:\Ruby192\devkit>gem install rails  
Temporarily enhancing PATH to include DevKit...  
Building native extensions.  This could take a while...  
Fetching: rdoc-3.12.gem (100%)  
Depending on your version of ruby, you may need to install ruby rdoc/ri data:    
<= 1.8.6 : unsupported  
 = 1.8.7 : gem install rdoc-data; rdoc-data --install  
 = 1.9.1 : gem install rdoc-data; rdoc-data --install  
>= 1.9.2 : nothing to do! Yay!  
Fetching: railties-3.2.8.gem (100%)  
Fetching: bundler-1.2.0.gem (100%)  
Fetching: rails-3.2.8.gem (100%)  
Successfully installed json-1.7.5  
Successfully installed rdoc-3.12  
Successfully installed railties-3.2.8  
Successfully installed bundler-1.2.0  
Successfully installed rails-3.2.8  
5 gems installed  
Installing ri documentation for json-1.7.5...  
Installing ri documentation for rdoc-3.12...  
unable to convert U+00A9 from UTF-8 to GBK for lib/rdoc/text.rb, skipping  
Installing ri documentation for railties-3.2.8...  
Installing ri documentation for bundler-1.2.0...  
Installing ri documentation for rails-3.2.8...  
Installing RDoc documentation for json-1.7.5...  
Installing RDoc documentation for rdoc-3.12...  
unable to convert U+00A9 from UTF-8 to GBK for lib/rdoc/text.rb, skipping  
Installing RDoc documentation for railties-3.2.8...  
Installing RDoc documentation for bundler-1.2.0...  
Installing RDoc documentation for rails-3.2.8...    
  果然成功了,哈哈    
D:\Ruby192\devkit>rails -v  
Rails 3.2.8    
  想做个实例,搜一下网上的书,还是不行,那些书最新的2012的都不用命令行做,2011的还是老的命令行方式。根本没法用,上官网看就是了。  
D:\Ruby192\devkit>rails new D:/project/ruby/railsapp  
      create  
      create  README.rdoc  
      create  Rakefile  
      create  config.ru  
      create  .gitignore  
      create  Gemfile  
      create  app  
      create  app/assets/images/rails.png  
      create  app/assets/javascripts/application.js  
      create  app/assets/stylesheets/application.css  
      create  app/controllers/application_controller.rb  
      create  app/helpers/application_helper.rb  
      create  app/mailers  
      create  app/models  
      create  app/views/layouts/application.html.erb  
      create  app/mailers/.gitkeep  
      create  app/models/.gitkeep  
      create  config  
      create  config/routes.rb  
      create  config/application.rb  
      create  config/environment.rb  
      create  config/environments  
      create  config/environments/development.rb  
      create  config/environments/production.rb  
      create  config/environments/test.rb  
      create  config/initializers  
      create  config/initializers/backtrace_silencers.rb  
      create  config/initializers/inflections.rb  
      create  config/initializers/mime_types.rb  
      create  config/initializers/secret_token.rb  
      create  config/initializers/session_store.rb  
      create  config/initializers/wrap_parameters.rb  
      create  config/locales  
      create  config/locales/en.yml  
      create  config/boot.rb  
      create  config/database.yml  
      create  db  
      create  db/seeds.rb  
      create  doc  
      create  doc/README_FOR_APP  
      create  lib  
      create  lib/tasks  
      create  lib/tasks/.gitkeep  
      create  lib/assets  
      create  lib/assets/.gitkeep  
      create  log  
      create  log/.gitkeep  
      create  public  
      create  public/404.html  
      create  public/422.html  
      create  public/500.html  
      create  public/favicon.ico  
      create  public/index.html  
      create  public/robots.txt  
      create  script  
      create  script/rails  
      create  test/fixtures  
      create  test/fixtures/.gitkeep  
      create  test/functional  
      create  test/functional/.gitkeep  
      create  test/integration  
      create  test/integration/.gitkeep  
      create  test/unit  
      create  test/unit/.gitkeep  
      create  test/performance/browsing_test.rb  
      create  test/test_helper.rb  
      create  tmp/cache  
      create  tmp/cache/assets  
      create  vendor/assets/javascripts  
      create  vendor/assets/javascripts/.gitkeep  
      create  vendor/assets/stylesheets  
      create  vendor/assets/stylesheets/.gitkeep  
      create  vendor/plugins  
      create  vendor/plugins/.gitkeep  
         run  bundle install  
Fetching gem metadata from https://rubygems.org/.........  
Installing rake (0.9.2.2)  
Installing i18n (0.6.1)  
Installing multi_json (1.3.6)  
Using activesupport (3.2.8)  
Using builder (3.0.0)  
Using activemodel (3.2.8)  
Using erubis (2.7.0)  
Using journey (1.0.4)  
Using rack (1.4.1)  
Using rack-cache (1.2)  
Using rack-test (0.6.1)  
Using hike (1.2.1)  
Using tilt (1.3.3)  
Using sprockets (2.1.3)  
Using sprockets (2.1.3)  
Using actionpack (3.2.8)  
Installing mime-types (1.19)  
Using polyglot (0.3.3)  
Using treetop (1.4.10)  
Using mail (2.4.4)  
Using actionmailer (3.2.8)  
Using arel (3.0.2)  
Using tzinfo (0.3.33)  
Using activerecord (3.2.8)  
Using activeresource (3.2.8)  
Using bundler (1.2.0)  
Installing coffee-script-source (1.3.3)  
Installing execjs (1.4.0)  
Installing coffee-script (2.2.0)  
Using rack-ssl (1.3.2)  
Using json (1.7.5)  
Using rdoc (3.12)  
Installing thor (0.16.0)  
Using railties (3.2.8)  
Installing coffee-rails (3.2.2)  
Installing jquery-rails (2.1.1)  
Using rails (3.2.8)  
Installing sass (3.2.1)  
Installing sass-rails (3.2.5)  
Using sqlite3 (1.3.6)  
Installing uglifier (1.2.7)  
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem  
is installed.    
D:\Ruby192\devkit>cd D:\project\ruby\railsapp    
D:\project\ruby\railsapp>rails server  
=> Booting WEBrick  
=> Rails 3.2.8 application starting in development on http://0.0.0.0:3000  
=> Call with -d to detach  
=> Ctrl-C to shutdown server  
[2012-09-01 06:44:40] INFO  WEBrick 1.3.1  
[2012-09-01 06:44:41] INFO  ruby 1.9.2 (2011-07-09) [i386-mingw32]  
[2012-09-01 06:44:41] INFO  WEBrick::HTTPServer#start: pid=2924 port=3000    
  浏览器中输入http://localhost:3000/,熟悉的界面出现    
 
      所以ror厚厚的书读完也没用,可能动手连代码都没机会敲。    
  另外也可以到网站http://railsinstaller.org/下载配置好的安装包,就免去手动配置啦。