初学者 Ruby / MSQL 错误

Question

http://localhost:3000/genre

我正在使用 Instant Rails，这是我第一次介绍脚手架。

所以看起来一切正常，我做了自己的 RoR 页面等，今天我今天进来，当我转到 localhost:3000 时，我收到以下错误消息：

哎呀！谷歌浏览器无法连接到 localhost:3000

任何关于我应该检查的建议将不胜感激。到目前为止，我知道要确认：

1. windows 主机文件将 127.0.0.1 连接到 localhost

我对此进行了更新，Mongrel 服务器无法使用我创建的新应用程序正常启动，而不是打开一个窗口，它只是运行一个脚本并关闭窗口而不确认它已启动。

提前致谢。

这里是 Mongrel 错误的详细信息：

C:\Users\Will\Desktop\instantrails\rails_apps\talewiki>mongrel_rails start -p 30 00 ** 在 0.0.0.0:3000 开始 Mongrel 监听 ** 使用开发环境启动 Rails... C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0。 2/lib/active_record/connection_adapters/abstract/connection_specification.rb:217 ：在establish_connection': development database is not configured (ActiveRecord ::AdapterNotSpecified) from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/acti verecord-2.0.2/lib/active_record/connection_adapters/abstract/connection_specifi cation.rb:208:in建立连接' 来自 C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/rail s-2.0.2/lib/initializer.rb:234:in initialize_database' from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/rail s-2.0.2/lib/initializer.rb:94:inprocess' 来自 C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/rail s-2.0.2/lib/initializer.rb:49:in send' from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/rail s-2.0.2/lib/initializer.rb:49:inrun' 来自 C:/Users/Will/Desktop/instantrails/rails_apps/talewiki/config/envir onment.rb:13 来自 C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/site_ruby/1.8/ruby gems/custom_require.rb:27:in gem_original_require' from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/site_ruby/1.8/ruby gems/custom_require.rb:27:inrequire' ... 9 级... 来自 C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/mong rel-1.1.2-x86-mswin32/bin/../lib/mongrel/command.rb:212:in run' from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/mong rel-1.1.2-x86-mswin32/bin/mongrel_rails:281 from C:/Users/Will/Desktop/instantrails/ruby/bin/mongrel_rails:19:inlo 广告' 来自 C:/Users/Will/Desktop/instantrails/ruby/bin/mongrel_rails:19

Answer 1

您的数据库似乎尚未配置。查看 APP_ROOT/config/database.yml 文件，看看是否创建了对应开发环境的数据库。设置数据库后，您的代码应该可以正常运行。