RubyでURL

ruby-1.9.2-p290 :215 > URI.encode("{\"hoge\":\"fuga\"}")
 => "%7B%22hoge%22:%22fuga%22%7D"
ruby-1.9.2-p290 :216 > URI.decode("%7B%22hoge%22:%22fuga%22%7D")
 => "{\"hoge\":\"fuga\"}" 

• Rubyで日本語を含むURLを扱う - Haroperi.log