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Ruby JSON
Ruby JSON本章节我们将为大家介绍如何使用 Ruby 语言来编码和解码 JSON 对象。环境配置在使用 Ruby 编码或解码 JSON 数据前,我们需要先安装 Ruby JSON 模块。在安装该模块前你需要先安装 Ruby gem,我们使用 Ruby gem 安装 JSON 模块。但是,如果你使用的是最新版本的 Ruby,可能已经安装了 gem,解析来我们就可以使用以下命令来安装Ruby JSON 模块:$gem install json使用 Ruby 解析 JSON以下为JSON数据,将该数据存储在 input.json 文件中:input.json 文件{"President":
"Alan Isaac","CEO":
"David Richardson","India":
["Sachin Tendulkar","Virender Sehwag","Gautam Gambhir"],"Srilanka":
["Lasith Malinga","Angelo Mathews","Kumar Sangakkara"],"England":
["Alastair Cook","Jonathan Trott","Kevin Pietersen"]}以下的 Ruby 程序用于解析以上 JSON 文件;实例
#!/usr/bin/rubyrequire 'rubygems'require 'json'require 'pp'json = File.read('input.json')obj = JSON.parse(json)pp obj以上实例执行结果为:{"President"=>"Alan Isaac", "CEO"=>"David Richardson", "India"=> ["Sachin Tendulkar", "Virender Sehwag", "Gautam Gambhir"],"Srilanka"=> ["Lasith Malinga ", "Angelo Mathews", "Kumar Sangakkara"], "England"=> ["Alastair Cook", "Jonathan Trott", "Kevin Pietersen"]}
"Alan Isaac","CEO":
"David Richardson","India":
["Sachin Tendulkar","Virender Sehwag","Gautam Gambhir"],"Srilanka":
["Lasith Malinga","Angelo Mathews","Kumar Sangakkara"],"England":
["Alastair Cook","Jonathan Trott","Kevin Pietersen"]}以下的 Ruby 程序用于解析以上 JSON 文件;实例
#!/usr/bin/rubyrequire 'rubygems'require 'json'require 'pp'json = File.read('input.json')obj = JSON.parse(json)pp obj以上实例执行结果为:{"President"=>"Alan Isaac", "CEO"=>"David Richardson", "India"=> ["Sachin Tendulkar", "Virender Sehwag", "Gautam Gambhir"],"Srilanka"=> ["Lasith Malinga ", "Angelo Mathews", "Kumar Sangakkara"], "England"=> ["Alastair Cook", "Jonathan Trott", "Kevin Pietersen"]}
Ruby JSON