强制将根xml元素转换为json转换中的数组 [英] Force root xml element to be array on json conversion

问题描述

我在下面使用( http://james.newtonking.com/projects/json)强制XML节点在转换为JSON时成为数组:

I am using below (http://james.newtonking.com/projects/json) to force XML nodes to be an array when converted to JSON:

<person xmlns:json='http://james.newtonking.com/projects/json' id='1'>
  <name>Alan</name>
  <url>http://www.google.com</url>
  <role json:Array='true'>Admin</role>
</person>

我得到的是

 {
   "person": {
     "@id": "1",
     "name": "Alan",
     "url": "http://www.google.com",
     "role": [
       "Admin"
     ]
   }
 }

我想要的是

 {
   "person": [
      {
     "@id": "1",
     "name": "Alan",
     "url": "http://www.google.com",
     "role": [
       "Admin"
     ]
    }
   ]
 }

是否可以在根节点上强制使用数组?

Is it possible to force array on root node ?

推荐答案

我能够通过以下方式获得您想要的结果:

I am able to get the result you desire by:

1. 将json:Array='true'添加到根元素<person>.

由于您已经将该属性添加到<role>中，因此也不必将其添加到根元素中.

Since you are already adding this attribute to <role> adding it to the root element as well should not be a burden.

将XML加载到XDocument(或XmlDocument)中并转换文档本身，而不只是转换根元素XDocument.Root.

Loading the XML into an XDocument (or XmlDocument) and converting the document itself rather than just the root element XDocument.Root.

因此:

var xml = @"<person xmlns:json='http://james.newtonking.com/projects/json' id='1' json:Array='true'>
  <name>Alan</name>
  <url>http://www.google.com</url>
  <role json:Array='true'>Admin</role>
</person>";

var xDocument = XDocument.Parse(xml);
var json1 = JsonConvert.SerializeXNode(xDocument, Newtonsoft.Json.Formatting.Indented);

生成所需的JSON:

{
  "person": [
    {
      "@id": "1",
      "name": "Alan",
      "url": "http://www.google.com",
      "role": [
        "Admin"
      ]
    }
  ]
}

但是以下内容却没有:

var json2 = JsonConvert.SerializeXNode(xDocument.Root, Newtonsoft.Json.Formatting.Indented);

使用XmlDocument可获得类似的结果，其中只有以下内容可根据需要进行工作:

A similar result obtains using XmlDocument, in which only the following works as desired:

var xmlDocument = new XmlDocument();
xmlDocument.LoadXml(xml);

var json1 = JsonConvert.SerializeXmlNode(xmlDocument, Newtonsoft.Json.Formatting.Indented);

我在Json.NET 10.0.1和Json.NET 12.0.1上都确认了这一点.为什么序列化文档及其根元素会有所不同，您可能会创建一个 询问Newtonsoft为何如此重要.

I confirmed this on both Json.NET 10.0.1 and Json.NET 12.0.1. It's a bit mysterious why serializing the document vs. its root element should make a difference, you might create an issue for Newtonsoft asking why it should matter.

演示小提琴此处.

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