主题：微信模版消息发送失败

把代码复制到命令窗口执行，错误信息如图。

代码如下：

Dim url As String = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token={0}"
Dim hc As New HttpClient(CExp(url, Functions.Execute("GetAccessToken")))
Dim jo As New JObject
Dim ja As New JArray
jo("touser") = "xxx"
jo("template_id") = "xxx" '模板ID
jo("url") = "http://cbjg.700.xyz"
jo("data") = New JObject()
jo("data")("short_thing4") = New JObject()
jo("data")("short_thing4")("value") = "Foxtable"
jo("data")("short_thing4")("color") = "#173177"

hc.content = jo.Tostring()
jo = JObject.Parse(hc.getdata)
If jo("errcode") = "0" Then
    MessageBox.show("模版消息发送成功!")
Else
    Messagebox.Show(jo.ToString)
End If

发送模版消息中这段：

Dim url As String = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token={0}"
Dim hc As New HttpClient(CExp(url, Functions.Execute("GetAccessToken")))
Dim jo As New JObject
Dim ja As New JArray
jo("touser") = "ofjtFwBSZ5cNqTKLSKx2TNEAxfBI"
jo("template_id") = "WPpt3ki1Haq-ERpQvWXAgT7IZbfO07mbKtjnRt1Kiek" '模板ID
jo("url") = http://www.foxtable.com

如果一次想给多个用户发送，需要怎么改？

 If dr2("openid") <> "" Then '推送公众号
                                messagebox.Show("2")
                                Dim url As String = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token={0}"
                                Dim hc As New HttpClient(CExp(url, Functions.Execute("GetAccessToken")))
                                Dim jo As New JObject
                                Dim ja As New JArray
                                 messagebox.Show(dr2("openid"))
                                jo("touser") = dr2("openid")
                                 messagebox.Show("111")
                                jo("template_id") = "k16daqo2JIEhQXUOufSPDzYjguPr08RCZCzoR4" '模板ID
                                 messagebox.Show("22")

这句为什么总出错呢？

  '以下发送关员公众号推送
                            messagebox.Show("1")
                            If dr2("openid") <> "" Then '推送公众号
                                messagebox.Show("2")
                                Dim url As String = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token={0}"
                                Dim hc As New HttpClient(CExp(url, Functions.Execute("GetAccessToken")))
                                Dim jo As New JObject
                                Dim ja As New JArray
                                messagebox.Show(dr2("openid"))
                                jo("touser") = cstr(dr2("openid"))
                                messagebox.Show("111")
                                jo("template_id") = "k16daqo2JIEhQXUOuPr08RCZCzoR4" '模板ID
                                messagebox.Show("22")
                                jo("url") = "http://cbjg.700.xyz"
                                jo("data") = New JObject()
                                messagebox.Show("33")
                                jo("data")("thing2") = New JObject()
                                jo("data")("thing2")("value") = cstr(dr("船舶代理")) & cstr(dr("用户姓名")) & "已申报船名:" & cstr(dr("中文船名")) & ",请按要求进行后续工作。"
                                jo("data")("thing2")("color") = "#173177"
                                jo("data")("time4") = New JObject()
                                jo("data")("time4")("value") = Date.Today()
                                jo("data")("time4")("color") = "#173177"
                                messagebox.Show("44")
                                hc.content = jo.Tostring()
                                jo = JObject.Parse(hc.getdata)
                                messagebox.Show("3")
                            End If
                           

设置的这些mssage都正常显示了，但是微信公众号 没有推送信息，怎么回事？