字符串URL編碼

你好，我有URL編碼，％3A，％2F的串...字符串URL編碼

的http％3A％2F％2Fmydomain.com％2Fimage％2Fflv％2F1％2F8％2FA％ 2Fimage_18060.jpg％3Fe％3D13777194

我想將「特殊字符」http://www.w3schools.com/tags/ref_urlencode.asp替換爲ASCII字符，我在Rails中編程，但我沒有想法，我可以從哪裏開始。你有什麼想法？

非常感謝您的幫助！

hummm 這樣我可以使用URI.unescape嗎？

scraper = Scraper.define do 
    array :items 
    process "div.mozaique>div", :items => Scraper.define { 
     process "div.thumb>a", URI.unescape(:link) => "@href" 
     result :link 
    } 
    result :items 
    end 




/Users/jcr/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/uri/common.rb:331:in `unescape': undefined method `gsub' for :link:Symbol (NoMethodError) 
    from /Users/jcr/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/uri/common.rb:649:in `unescape' 
    from /Users/jcr/web/sss/app/controllers/cweb.rb:17:in `block (2 levels) in main_web' 
    from /Users/jcr/.rvm/gems/ruby-1.9.3-p448/gems/scrapi-2.0.0/lib/scraper/base.rb:986:in `module_eval' 
    from /Users/jcr/.rvm/gems/ruby-1.9.3-p448/gems/scrapi-2.0.0/lib/scraper/base.rb:986:in `define' 
    from /Users/jcr/web/sss/app/controllers/cweb.rb:15:in `block in main_web' 
    from /Users/jcr/.rvm/gems/ruby-1.9.3-p448/gems/scrapi-2.0.0/lib/scraper/base.rb:986:in `module_eval' 
    from /Users/jcr/.rvm/gems/ruby-1.9.3-p448/gems/scrapi-2.0.0/lib/scraper/base.rb:986:in `define' 
    from /Users/jcr/web/sss/app/controllers/cweb.rb:13:in `main_web' 
    from /Users/jcr/web/sss/app/controllers/cweb.rb:57:in `<top (required)>' 
    from -e:1:in `load' 
    from -e:1:in `<main>'

來源

2013-08-28 Mike Norton

您可以使用URI.unescape：

irb(main):003:0> require 'uri' 
=> true 
irb(main):006:0> URI.unescape("http%3A%2F%2Fmydomain.com%2Fimage%2Fflv%2F1%2F8%2Fa%2Fimage_18060.jpg%3Fe%3D13777194") 
=> "http://mydomain.com/image/flv/1/8/a/image_18060.jpg?e=13777194"

來源

2013-08-28 17:20:51 Shadwell

字符串URL編碼

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