.NET 微信Token验证和消息接收和回复

 1  public class wxXmlModel
 2     {
 3         public string ToUserName { get; set; }
 4         public string FromUserName { get; set; }
 5         public string CreateTime { get; set; }
 6         public string MsgType { get; set; }
 7         public string Content { get; set; }
 8         public string MsgId { get; set; }
 9 
10     }

 1   public string Token = "Token";
 2 
 3         protected void Page_Load(object sender, EventArgs e)
 4         {
 5             string echoStr = Request.QueryString["echoStr"];
 6 
 7 
 8 
 9             if (CheckSignature() && !string.IsNullOrEmpty(echoStr))
10             {
11                 Response.Write(echoStr);
12                 Response.End();
13             }
14             else { 
15                 //如果没有接收到echostr说明不在是使用token验证
16                 //接收微信发送过来的xml消息并且解析
17                  Stream requestSream=HttpContext.Current.Request.InputStream;
18                 byte[] requestByte=new byte[requestSream.Length];
19                 requestSream.Read(requestByte,0,(int)requestSream.Length);
20                 string requestStr=Encoding.UTF8.GetString(requestByte);
21 
22                 if(!string.IsNullOrEmpty(requestStr))
23                 {
24                     //封装请求类
25                      XmlDocument requestDocXml=new XmlDocument();
26                     requestDocXml.LoadXml(requestStr);
27                     XmlElement rootElement=requestDocXml.DocumentElement;
28                     wxXmlModel wxXmlModel=new wxXmlModel();
29                     wxXmlModel.ToUserName=rootElement.SelectSingleNode("ToUserName").InnerText;
30                     wxXmlModel.FromUserName=rootElement.SelectSingleNode("FromUserName").InnerText;
31                     wxXmlModel.CreateTime=rootElement.SelectSingleNode("CreateTime").InnerText;
32                     wxXmlModel.MsgType=rootElement.SelectSingleNode("MsgType").InnerText;
33                     switch(wxXmlModel.MsgType)
34                     {
35                         case "text":
36                             wxXmlModel.Content=rootElement.SelectSingleNode("Content").InnerText;
37                             break;
38                         default:
39                             break;
40                        
41                     }
42                  string      xmlMsg = "<xml>" + "<ToUserName><![CDATA[" + wxXmlModel.FromUserName+ "]]></ToUserName>"
43                        + "<FromUserName><![CDATA[" + wxXmlModel.ToUserName + "]]></FromUserName>"
44                        + "<CreateTime>" + DateTime.Now + "</CreateTime>"
45                        + "<MsgType><![CDATA[text]]></MsgType>"
46                        + "<Content><![CDATA["+wxXmlModel.Content+"]]></Content>"
47                        + "</xml>";
48 
49                    Response.Write(xmlMsg);
50                 }
51             }
52         }
53  private bool CheckSignature()
54         {
55             string signature = Request.QueryString["signature"];
56             string timestamp = Request.QueryString["timestamp"];
57             string nonce = Request.QueryString["nonce"];
58           
59             string[] arrTmp = { Token, timestamp, nonce };
60             Array.Sort(arrTmp);
61             string tmpStr = string.Join("", arrTmp);
62             tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1");
63             if (tmpStr != null)
64             {
65                 tmpStr = tmpStr.ToLower();
66                 return tmpStr == signature;
67             }
68             return false;
69         }

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原文地址：https://www.cnblogs.com/WangJunZzz/p/5483699.html