用Ruby编写博客应用

用Ruby编写博客应用 Powered by Rabbit 0.9.0

用Ruby编写博客应用

吴江


Ruby

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作者

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基础工具

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irbri

rdoc4/51


演示5/51


基本类型

i = 1 # Integerb = true # Booleanf = 1.0/3 # Floatn = nil # Null

str = "a string" # Stringsym = :"a string" # Symbol

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面向对象

i.class # => Integerb.class # => Booleanf.class # => Floatn.class # => NilClass

str.class # => Stringsym.class # => Symbol

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符号

str1 = "a string"str2 = "a string"str1 == str2 # truestr1.object_id == str2.object_id # false

sym1 = :"a string"sym2 = :"a string"sym1 == sym2 # truesym1.object_id == sym2.object_id # true

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数组操作

a = [1, 2, 3] a << 4 # a = [1, 2, 3, 4] a[0] # => 1 a[1..3] # => [2, 3, 4] a[1] = "a" # a = [1, "a", 3, 4] a[5] = [1,2] # a = [1, "a", 3, 4, nil, [1,2]]

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哈希表操作

a = { "a" => 1 } a["a"] # => 1 a["b"] # => nil a["b"] = 2 # a = { "a" => 1, "b" => 2}

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写博客11/51


服务商12/51


MSNSpace挂了

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Wordpress

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满大街都是

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没脸和别人打招呼

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将要实现的特点

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不用DB鼓掌!!!

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没有SQL注入

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不用担心后台密码被盗

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文件格式

# 文件名: 2010-10-10-a-lucky-day.txttitle: "A Lucky Day"date: 10/10/2010

# 今天是我的幸运日

早上在地铁门将要关上的那一刻，我冲进了车厢，于是约会没有迟到...

中午提前了一点去港丽，居然只排了42分钟...

晚上又赶上了末班车...

到家数了数，钱包里面正好有42块钱...

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YAML22/51


JSON兼容

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Markdown

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Markdown 不能传值

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Haml模版

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SinatraDSL

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演示28/51


安装Ruby

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RVM30/51


安装Ruby库

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Rubygems:包管理工具

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Bundler33/51


gem install

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Gemfile

source "http://rubygems.org"gem 'haml' # HAML模版gem 'rdiscount' # 渲染Markdowngem 'sinatra' # Sinatragem 'thin' # 应用服务器gem 'shotgun' # 负责重启服务器

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bundle install

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Hello, world

get '/' do "Hello, world!"end

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get '/'38/51


列出所有日志

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外部shell命令

`ls *.txt``find -name "*.txt"`

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使用Dir类

Dir["*.txt"]Dir["**/*.txt"]

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读取文件内容

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File.read

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/:year/:month/:day/:title列出文章内容

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评论45/51


Disqus

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部署47/51


Heroku

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Q & A49/51


本项目地址

http://github.com/nouse/text-blog

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谢谢！51/51

用Ruby编写博客应用

Technology

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