C#解析"a=1&b=2&c=3"字符串，微信支付返回字符串，替换<br>为& -云博客

C#解析"a=1&b=2&c=3"字符串，微信支付返回字符串，替换<br>为&

# 微信 2024-05-05 13:41 0 28 来源：云博客

原文来自： http://www.mzwu.com/article.asp?id=2802

C#可用：

若该字符串是使用Http Get发送，url?a=1&b=2&c=3，使用下边代码即可获取参数a的值：

 程序代码 
 Request.QueryString["a"] 

若该字符串是远程接口返回，以前都是用Split函数去拆分，今天发现一个非常强大的方法ParseQueryString，简单多了：

程序代码

<%@ WebHandler Language="C#" class="Default" %>using System;using System.Web;using System.Text;using System.Collections.Specialized;public class Default : IHttpHandler { public void ProcessRequest (HttpContext context) { context.Response.ContentType = "text/plain"; string str = "a=1&b=2&c=3"; NameValueCollection query = HttpUtility.ParseQueryString(str, Encoding.GetEncoding("gb2312")); context.Response.Write(query["a"]); } public bool IsReusable { get { return false; } }}

C#例子代码：

 resultDescription = resultDescription.Replace("<br>", "&"); NameValueCollection query = HttpUtility.ParseQueryString(resultDescription, Encoding.GetEncoding("gb2312")); responseModel.MicroPayRequestModel = new Models.RequestModel.MicroPayRequestModel(); responseModel.MicroPayRequestModel.Appid = query["appid"];
 responseModel.MicroPayRequestModel.XXX= query["XXX"];