问题描述
目前我的代码结构使用XmlDocument
加载Xml数据,然后SelectNodes
遍历一个重复项的列表.
At present, the structure of my code uses XmlDocument
to load Xml data and then SelectNodes
to iterate through a list of repeating items.
对于每个元素,我使用 XmlNode.SelectSingleNode
来挑选字段元素.
For each element, I am using XmlNode.SelectSingleNode
to pick out the field elements.
我现在想使用 JSON.NET 来获得与作为 JSON 交付给我的文档相同的结果.答案可以不是 JSON.net,只要它是 C# 可集成的.
I now want to use JSON.NET to achieve the same results with documents delivered to me as JSON. The answer can be something other than JSON.net, so long as it's C# integrable.
推荐答案
Json.NET 有 SelectToken.它使用类似于 DataBinder.Eval 的语法通过字符串表达式获取 JSON:
Json.NET has SelectToken. It uses a syntax similar to DataBinder.Eval to get JSON via a string expression:
JObject o = JObject.Parse("{'People':[{'Name':'Jeff'},{'Name':'Joe'}]}");
// get name token of first person and convert to a string
string name = (string)o.SelectToken("People[0].Name");
或者如果您想选择多个值:
Or if you wanted to select multiple values:
JObject o = JObject.Parse("{'People':[{'Name':'Jeff','Roles':['Manager', 'Admin']}]}");
// get role array token of first person and convert to a list of strings
IList<string> names = (string)o.SelectToken("People[0].Roles").Select(t => (string)t).ToList();
文档:使用 SelectToken 查询 JSON
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