通过路径设置JSON属性

本文介绍了通过路径设置JSON属性的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

是否可以使用Json.NET通过路径设置属性?

Is there a way to set an attribute by the path, using Json.NET?

JObject o = JObject.Parse(@"{ 'CPU': 'Intel', 'Drivers': { 'Mouse': 'HPQ', 'VideoCard' : 'NVidia' } }"); //something like that o.SetByPath("Drivers.VideoCard") = "Intel";

有可能吗?

顺便说一句，我知道我可以做到:

By the way, I know that I can do this:

o["Drivers"]["VideoCard"] = "Intel";

但这不是我想要的.

推荐答案

> c0> 和 JToken.Replace 方法可在此处使用达到基本相同的效果.

The JObject.SelectToken and JToken.Replace methods can be used here to achieve essentially the same effect.

static void Main(string[] args) { JObject obj = JObject.Parse(@"{ 'CPU': 'Intel', 'Drivers': { 'Mouse': 'HPQ', 'VideoCard' : 'NVidia' } }"); Console.WriteLine(obj); JToken token = obj.SelectToken("Drivers.VideoCard"); token.Replace("Intel"); Console.WriteLine(obj); }

输出:

{ "CPU": "Intel", "Drivers": { "Mouse": "HPQ", "VideoCard": "NVidia" } } { "CPU": "Intel", "Drivers": { "Mouse": "HPQ", "VideoCard": "Intel" } }

如果需要，可以使用扩展方法来扔掉它.

Toss it in an extension method if you'd like.

static void SetByPath(this JObject obj, string path, string value) { JToken token = obj.SelectToken(path); token.Replace(value); }