原因:
https://developers.weixin.qq.com/doc/offiaccount/Message_Management/Passive_user_reply_message.html
If e.Request.HttpMethod = "GET"
If Functions.Execute("VerifySignature",e) Then
e.WriteString(e.GetValues("echostr"))
End If
ElseIf e.Request.HttpMethod = "Post"
Dim xo As Foxtable.XObject = Foxtable.XObject.Parse(e.PlainText)
Dim st As New Date(1970,1,1,8,0,0)
Selec Case xo("MsgType")
Case "text","image","voice","video","shortvideo" '为了简单,这里只保存文本、图片、语音和视频消息。
Dim dr As DataRow = DataTables("Message").AddNew()
dr("FromUserName") = xo("FromUserName")
dr("CreateTime") = st.AddSeconds(xo("CreateTime"))
dr("MsgType") = xo("MsgType")
dr("MsgId") = xo("MsgId")
dr("MediaId") = xo("MediaId")
dr("ThumbMediaId") = xo("ThumbMediaId")
dr("PicUrl") = xo("PicUrl")
dr("Content") = xo("Content")
dr("Format") = xo("Format")
dr("Recognition") = xo("Recognition")
dr.Save()
End Selec
e.WriteString("success")
End If