C# 如何解析获取Url参数值

https://shequ.jb51.net/?url=www.jb51.net/?id=15&data={"id":12,"name":"今天天气不错"}

//处理前
https://www.jb51.net/?id=15&data={"id":12,"name":"今天天气不错"}

//处理后
https://www.jb51.net/?id=15&data={"id":15,"name":"今天天气不错"}

encodeURIComponent(url) //js
HttpUtility.UrlEncode(url) //C#
url.QueryEscape(url) //Go

string url = "https://www.jb51.net/?id=15&data={'id':12,'name':'今天天气不错'}";
var uri = new Uri(url);

var collection= HttpUtility.ParseQueryString(uri.Query);//默认采用UTF-8编码，当然也可以传入特定编码进行解析
//var collection= HttpUtility.ParseQueryString(uri.Query,Encoding.ASCII);

Console.WriteLine(collection["data"]);//输出结果： {'id':12,'name':'今天天气不错'}

public static Dictionary<string, string> ParseQueryString(string url)
{
	if (string.IsNullOrWhiteSpace(url))
	{
		throw new ArgumentNullException("url");
	}
	var uri = new Uri(url);
	if (string.IsNullOrWhiteSpace(uri.Query))
	{
		return new Dictionary<string, string>();
	}
 //1.去除第一个前导?字符
	var dic = uri.Query.Substring(1)
 //2.通过&划分各个参数
			.Split(new char[] { '&' }, StringSplitOptions.RemoveEmptyEntries)
 //3.通过=划分参数key和value,且保证只分割第一个=字符
			.Select(param => param.Split(new char[] { '=' }, 2, StringSplitOptions.RemoveEmptyEntries))
 //4.通过相同的参数key进行分组
			.GroupBy(part => part[0], part => part.Length > 1 ? part[1] : string.Empty)
 //5.将相同key的value以,拼接
			.ToDictionary(group => group.Key, group => string.Join(",", group));

	return dic;
}