我要做个登录页面

Question

我按照这个网页的做http://book.51cto.com/art/200804/68723.htm
我出现了错误uninitialized constant JiankunController::User
我的环境是
Ruby version 1.8.6 (i386-mingw32)
RubyGems version 1.3.7
Rack version 1.1
Rails version 2.3.8
Active Record version 2.3.8
Active Resource version 2.3.8
Action Mailer version 2.3.8
Active Support version 2.3.8
Application root C:/Ruby186/sql
Environment development
Database adapter sqlserver
Database schema version 0
log是
Processing JiankunController#login (for 127.0.0.1 at 2010-08-04 11:49:39) [GET]

NameError (uninitialized constant JiankunController::User):
app/controllers/jiankun_controller.rb:11:in login'
C:/Ruby186/lib/ruby/1.8/webrick/httpserver.rb:104:inservice'
C:/Ruby186/lib/ruby/1.8/webrick/httpserver.rb:65:in run'
C:/Ruby186/lib/ruby/1.8/webrick/server.rb:173:instart_thread'
C:/Ruby186/lib/ruby/1.8/webrick/server.rb:162:in start'
C:/Ruby186/lib/ruby/1.8/webrick/server.rb:162:instart_thread'
C:/Ruby186/lib/ruby/1.8/webrick/server.rb:95:in start'
C:/Ruby186/lib/ruby/1.8/webrick/server.rb:92:ineach'
C:/Ruby186/lib/ruby/1.8/webrick/server.rb:92:in start'
C:/Ruby186/lib/ruby/1.8/webrick/server.rb:23:instart'
C:/Ruby186/lib/ruby/1.8/webrick/server.rb:82:in `start'

Rendered rescues/_trace (78.1ms)
Rendered rescues/_request_and_response (0.0ms)
Rendering rescues/layout (internal_server_error)
他上面说的和能详细但我不是很了解@user=user.new(params[:user]) 是构造一个User对象，并用接收到的user参数来初始化该对象
那他当中的[:user}对应的是什么?
他所对应的数据库又是什么？
有人能帮我下吗

Answer 1

啊，还真没有啊。
你在你的项目的app/models目录中新建一个user.rb文件
代码为:
[code="ruby"]class User < ActiveRecord::Base

end[/code]