Question

下面是我传递给javascript的最终json示例。我将使用（yajl）ruby库从哈希创建这个json。

问题是，产生json的 ruby hash 应该是什么样的？

var data = [{
       data: "basics",
       attr: {},
        children: [
         {data: "login", attr: {run: "run"},
           children: [                   
           {data: "login", attr: {}}
          ]
         } ,
         {data: "Academic Year", attr: {run: "run"},
          children: [                   
           {data: "login", attr: {}},
           {data: "Academic Year", attr: {filter: "mini", SOF: "yes"}}
          ]

         }
        ]
      }];

Answer 1

在var之后和;
粘贴到Ruby（1.9+）中 此时你已经完成了。证明它......
require "json"
puts data.to_json

结果（带有额外的换行符）：

#=> [{"data":"basics","attr":{}, "children":[
#=>    {"data":"login","attr":{"run":"run"},"children":[
#=>      {"data":"login","attr":{}}
#=>    ]},
#=>    {"data":"Academic Year","attr":{"run":"run"},"children":[
#=>      {"data":"login","attr":{}},
#=>      {"data":"Academic Year","attr":{"filter":"mini","SOF":"yes"}}
#=>    ]}
#=> ]}]

Answer 2

你可以很容易地找出哪种数据结构可以很容易地产生JSON：

require 'active_support'
json = '[{
       data: "basics",
       attr: {},
        children: [
         {data: "login", attr: {run: "run"},
           children: [
           {data: "login", attr: {}}
          ]
         } ,
         {data: "Academic Year", attr: {run: "run"},
          children: [
           {data: "login", attr: {}},
           {data: "Academic Year", attr: {filter: "mini", SOF: "yes"}}
          ]

         }
        ]
      }]'
puts ActiveSupport::JSON.decode(json).inspect

然后快速重新格式化输出就可以了：

[
    {
        "data" => "basics",
        "children" => [
            {
                "data" => "login", 
                "children" => [
                    {
                        "data" => "login", 
                        "attr" => { }
                    }
                ], 
                "attr" => {
                    "run" => "run"
                }
            }, 
            {
                "data" => "Academic Year", 
                "children" => [
                    {
                        "data" => "login", 
                        "attr" => { }
                    }, 
                    {
                        "data" => "Academic Year", 
                        "attr" => {
                            "filter" => "mini", 
                            "SOF" => "yes"
                        }
                    }
                ], 
                "attr" => {
                    "run" => "run"
                }
            }
        ], 
        "attr" => { }  
    } 
]

可能有更简单的方法，但上述方法可以快速实现一次性攻击。

Answer 3

你的问题不太清楚。你是说什么是Ruby结构会创建你在问题中显示的JSON？

如果是这样，那么你去....注意，基本级结构是一个Ruby数组，因为你的JSON基本级结构也是一个数组。

mydata = [{
           'data' => "basics",
           'attr' => {},
           'children' => [{
                          'data' => "login",
                          'attr' => {'run' => "run"},
                          'children' => [{
                                         'data' => "login",
                                         'attr' => {}
                                        }]
                          },
                          {
                           'data' => "Academic Year",
                           'attr' => {'run' => "run"},
                           'children' => [{
                                          'data' => "login",
                                          'attr' => {}
                                          },
                                          {
                                           'data' => "Academic Year",
                                           'attr' => {'filter' => "mini", 
                                                      'SOF' => "yes"}
                                          }]
                           }]
         }]

Answer 4

我刚刚在浏览器中运行它，它似乎是有效的JSON。那是你的问题吗？

什么是生成json的哈希结构？

4 个答案: