asp代码微信公众号自定义二维码关注后自动为粉丝分组

微信扫描二维码统计来源对每个公司市场分析有很大作用。还好微信为开发者提供了一个生成带参数的二维码的接口。最近公司要做个关注微信二维码统计来源的，百度了n久也没找到这样的demo, 研究了好几天，终于搞定。现写成文档分享出来。

实现目标：粉丝生成自已的二维码（微信公众号二维码带这个粉丝的参数），别人扫这个二维码时，如果没有关注，则提示关注，关注后就成为该粉丝的下线了，方便统计是谁发展来的用户

上代码：

<%
'**********************************************
'注意事项
'ASP文件需要以UTF-8的格式保存,否则乱码.
'作者wx :18611436777
'**********************************************
dim Signature	'微信加密签名
dim Timestamp	'时间戳
dim Nonce		'随机数
dim Echostr		'随机字符串
dim Token        '与微信后台设置的token一致
dim encrypt_type  '加密类型
dim msg_signature '签名

Token="7Gk0Ry2Wn"'

Signature = request.QueryString("signature")
Nonce = request.QueryString("nonce")
Timestamp = request.QueryString("timestamp")
Echostr = request.QueryString("echostr")
encrypt_type = request.QueryString("encrypt_type") 
msg_signature = request.QueryString("msg_signature")

'验证微信接口
If EchoStr<>"" then		
		'下面进行Token,TimesTamp,Nonce三个参数的字典排序
		dim str,i
		dim Myarray:Myarray=Sort(Array(Token,TimesTamp,Nonce))
		For i=0 To Ubound(Myarray)
			str=str&Myarray(i)
		Next
		if Lcase(SignaTure)=Lcase(SHA1(str,"Hex")) then
			Response.Write EchoStr	'验证成功，返回正确EchoStr给微信，接通接口API
			Response.End()
		end if
End if



'获取微信主动发送过来的内容
 Set xmldom = Server.CreateObject("MSXML2.DOMDocument")
            xmldom.load request
            xml = xmldom.documentElement.xml
            'call CreateTextFile(request.QueryString&xml,"a.txt")
			If encrypt_type = "aes" Then
               res =  ToAes(xml,0) 
			   xmldom.loadxml res
            End If
			ToUserName=xmldom.getelementsbytagname("ToUserName").item(0).text '接收者微信账号。即我们的公众平台账号。
			FromUserName=xmldom.getelementsbytagname("FromUserName").item(0).text '发送者微信账号Openid
			CreateTime=xmldom.getelementsbytagname("CreateTime").item(0).text
			MsgType=xmldom.getelementsbytagname("MsgType").item(0).text
			if (MsgType="event") then
				strEventType=xmldom.getelementsbytagname("Event").item(0).text '微信事件
				if strEventType="subscribe" then '表示订阅微信公众平台
						EventKey=xmldom.getelementsbytagname("EventKey").item(0).text
						Content="感谢关注"
						if EventKey<>"" then
							EventKey=replace(EventKey,"qrscene_","")
							Content = "你的上线ID:"&EventKey
						Else
							EventKey= 0
							Content = "感谢关注"						   	
						end if
						Call Login(EventKey,FromUserName)
						Call Return_Text(Content)
				ElseIf strEventType="unsubscribe" Then'取消关注
						Content="取消关注"
						Call Return_Text(Content)
				ElseIf strEventType="CLICK" Then'点击菜单获取关键字，获取
						EventKey=xmldom.getelementsbytagname("EventKey").item(0).text
						Content=EventKey
						Call Return_Text(Content)
				ElseIf strEventType="VIEW" Then'点击菜单获取关键字，跳转到链接
						EventKey=xmldom.getelementsbytagname("EventKey").item(0).text
						Content=EventKey
						Call Return_Text(Content)
				ElseIf strEventType="SCAN" Then '扫描二维码
						EventKey=xmldom.getelementsbytagname("EventKey").item(0).text
						Content= "欢迎再次光临"
						Call Return_Text(Content)
				ElseIf strEventType="scancode_push" or strEventType="scancode_waitmsg" Then	'点击菜单，调用扫码推事件的事件推送
						EventKey=xmldom.getelementsbytagname("EventKey").item(0).text
						ScanResult=xmldom.getelementsbytagname("ScanResult").item(0).text
						Content=ScanResult
						Call Return_Text(Content)
				ElseIf strEventType="pic_sysphoto" or strEventType="pic_photo_or_album" or strEventType="pic_weixin" Then	'点击菜单，调用系统拍照发图
						EventKey=xmldom.getelementsbytagname("EventKey").item(0).text
						Counts=xmldom.getelementsbytagname("Count").item(0).text
						Content="拍照发图，接收【"&Counts&"】张图片"
						Call Return_Text(Content)
				ElseIf strEventType="location_select" Then	'点击菜单，调用位置发送
						EventKey=xmldom.getelementsbytagname("EventKey").item(0).text
						Location_X=xmldom.getelementsbytagname("Location_X").item(0).text
						Location_Y=xmldom.getelementsbytagname("Location_Y").item(0).text
						Scale=xmldom.getelementsbytagname("Scale").item(0).text
						Label=xmldom.getelementsbytagname("Label").item(0).text
						Content="发送位置"&EventKey
						Call Return_Text(Content)					
				ElseIf strEventType="LOCATION" Then'获取用户地理位置，当用户打开对话框时，自动获取微信用户的实时地址。本功能需要配合服务号的LEB接口。
						Latitude=xmldom.getelementsbytagname("Latitude").item(0).text
						Longitude=xmldom.getelementsbytagname("Longitude").item(0).text
						Precision=xmldom.getelementsbytagname("Precision").item(0).text
						'记录用户LEB信息
				end if
			else
				MsgId=xmldom.getelementsbytagname("MsgId").item(0).text
			End If
			If MsgType="text" then'接收文本信息
				Content=xmldom.getelementsbytagname("Content").item(0).text
				Call Return_Text(Content)
			elseif MsgType="image" then'接收图片信息
				MediaId=xmldom.getelementsbytagname("MediaId").item(0).text
				PicUrl=xmldom.getelementsbytagname("PicUrl").item(0).text
				Content=PicUrl
				Call Return_Text(Content)		
			elseif MsgType="voice" then'"接收语音信息
				MediaId=xmldom.getelementsbytagname("MediaId").item(0).text
				Format=xmldom.getelementsbytagname("Format").item(0).text
				Content=MediaId
				Call Return_Text(Content)
			elseif MsgType="video" then'接收视频信息
				MediaId=xmldom.getelementsbytagname("MediaId").item(0).text
				ThumbMediaId=xmldom.getelementsbytagname("ThumbMediaId").item(0).text
				Content=MediaId
				Call Return_Text(Content)
			elseif MsgType="location" then'接收位置信息
				Location_X=xmldom.getelementsbytagname("Location_X").item(0).text
				Location_Y=xmldom.getelementsbytagname("Location_Y").item(0).text
				Scale=xmldom.getelementsbytagname("Scale").item(0).text
				Label=xmldom.getelementsbytagname("Label").item(0).text
				Content="地理位置"&Location_X&","&Location_Y&"你发的是地址信息:"&Label
				Call Return_Text(Content)
			elseif MsgType="link" then'接收链接信息
				Title=xmldom.getelementsbytagname("Title").item(0).text
				Descriptions=xmldom.getelementsbytagname("Description").item(0).text
				Url=xmldom.getelementsbytagname("Url").item(0).text
				Content=Url
				Call Return_Text(Content)
			end if	
set xmldom=Nothing			

'多图文消息
Function Return_News(Articles)
ArticleCount = Ubound(Articles)+1
str = "<xml>"&_
      "<ToUserName><![CDATA["&FromUserName&"]]></ToUserName>"&_
      "<FromUserName><![CDATA["&ToUserName&"]]></FromUserName>"&_
      "<CreateTime>"&DateDiff("s","1970-01-01 08:00:00",Now())&"</CreateTime>"&_
      "<MsgType><![CDATA[news]]></MsgType>"&_
      "<ArticleCount>"&ArticleCount&"</ArticleCount>"&_
      "<Articles>"
For i = 0 To ArticleCount-1
str = str & "<item>"&_
      "<Title><![CDATA["&Articles(i)(0)&"]]></Title>"&_ 
      "<Description><![CDATA["&Articles(i)(1)&"]]></Description>"&_
      "<PicUrl><![CDATA["&Articles(i)(2)&"]]></PicUrl>"&_
      "<Url><![CDATA["&Articles(i)(3)&"]]></Url>"&_
      "</item>"
Next
str = str & "</Articles>"&_
      "</xml>"
Response.Write str 
End Function 

'文本消息
Function Return_Text(Content)
str = "<xml>"&_
      "<ToUserName><![CDATA["&FromUserName&"]]></ToUserName>"&_
      "<FromUserName><![CDATA["&ToUserName&"]]></FromUserName>"&_
      "<CreateTime>"&DateDiff("s","1970-01-01 08:00:00",Now())&"</CreateTime>"&_
      "<MsgType><![CDATA[text]]></MsgType>"&_
      "<Content><![CDATA["&Content&"]]></Content>"&_
      "</xml>"
Response.Write str	 
End Function 

'字典排序
Function Sort(ary)
		Dim KeepChecking,I,FirstValue,SecondValue
		KeepChecking = TRUE 
		Do Until KeepChecking = FALSE 
			KeepChecking = FALSE 
			For I = 0 to UBound(ary) 
				If I = UBound(ary) Then Exit For 
				If ary(I) > ary(I+1) Then 
					FirstValue = ary(I) 
					SecondValue = ary(I+1) 
					ary(I) = SecondValue 
					ary(I+1) = FirstValue 
					KeepChecking = TRUE 
				End If 
			Next 
		Loop 
		Sort = ary 
End Function
	
Function PostHTTPPage(url,data) 
	dim Http 
	set Http=server.createobject("MSXML2.SERVERXMLHTTP.3.0")
	Http.open "POST",url,false 
	Http.setRequestHeader "CONTENT-TYPE", "application/x-www-form-urlencoded" 
	Http.send(data) 
	if Http.readystate<>4 then 
	exit function 
	End if
	PostHTTPPage=Http.responseText
	set http=nothing 
	if err.number<>0 then err.Clear 
End Function

%>