[ruby]ruby on rails学习笔记1

准备:

ruby(windows): http://rubyforge.org/frs/?group_id=167

gem: http://rubyforge.org/frs/?group_id=126

gem install rails

创建应用项目:

　　rails new blog

配置数据库:

sqlite3:

        development:
          adapter: sqlite3
          database: db/development.sqlite3
          pool: 5
          timeout: 5000

mysq1:

        development:
          adapter: mysql2
          encoding: utf8
          database: blog_development
          pool: 5
          username: root
          password:
          socket: /tmp/mysql.sock

postgresql:

        development:
          adapter: postgresql
          encoding: unicode
          database: blog_development
          pool: 5
          username: blog
          password:

创建数据库:

　　rake db:create

运行web server:

　　rails server

生成一个控制器和方法

　　rails generate controller home index # home为控制器 index为方法

　　生成的代码

　　app/controllers/home_comtroller.rb

        class HomeController < ApplicationController
          def index
          end
        end

删除 public/index.html

修改路由:

config/routes.rb

        Blog::Application.routes.draw do
          #...
          # You can have the root of your site routed with "root"
          # just remember to delete public/index.html.
          root :to => "home#index"