Question

我希望将支付网关集成到我的网络应用程序中，并发现他们的集成需要一个前端表单来提交值 - 在应用程序中，我目前没有支付前端，只需要一个负载结束VB.NET代码，收集信息并将其传递到类似支付网关的URL。

由于网关依赖于发布的表单，我需要找到一种方法来仅使用后端代码来模拟这个，所以我对这一切的最大问题是，是否可以提交（POST）表单而不用用户点击按钮？

前端所需的表格是：

<form method="post" action="https://mdepayments.epdq.co.uk/ncol/test/orderstandard.asp / orderstandard_utf8.asp" id=form1 name=form1>

<!-- general parameters: see Form parameters -->
<input type="hidden" name="PSPID" value="">
<input type="hidden" name="ORDERID" value="">
<input type="hidden" name="AMOUNT" value="">
<input type="hidden" name="CURRENCY" value="">
<input type="hidden" name="LANGUAGE" value="">
<input type="hidden" name="CN" value="">
<input type="hidden" name="EMAIL" value="">
<input type="hidden" name="OWNERZIP" value="">
<input type="hidden" name="OWNERADDRESS" value="">
<input type="hidden" name="OWNERCTY" value="">
<input type="hidden" name="OWNERTOWN" value="">
<input type="hidden" name="OWNERTELNO" value="">

<!-- check before the payment: see Security: Check before the payment -->
<input type="hidden" name="SHASIGN" value="">

<!-- layout information: see Look and feel of the payment page -->
<input type="hidden" name="TITLE" value="">
<input type="hidden" name="BGCOLOR" value="">
<input type="hidden" name="TXTCOLOR" value="">
<input type="hidden" name="TBLBGCOLOR" value="">
<input type="hidden" name="TBLTXTCOLOR" value="">
<input type="hidden" name="BUTTONBGCOLOR" value="">
<input type="hidden" name="BUTTONTXTCOLOR" value="">
<input type="hidden" name="LOGO" value="">
<input type="hidden" name="FONTTYPE" value="">

<!-- post payment redirection: see Transaction feedback to the customer -->
<input type="hidden" name="ACCEPTURL" value="">
<input type="hidden" name="DECLINEURL" value="">
<input type="hidden" name="EXCEPTIONURL" value="">
<input type="hidden" name="CANCELURL" value="">

<input type="submit" value="" id=submit2 name=submit2>
</form>

如果在没有按钮的情况下提交表单失败，那么一旦所有隐藏字段都到位后重新定向到动作网址，它是否会产生相同的效果？

Answer 1

使用System.Net.WebClient是最简单的方法。

Dim Url As String = "https://mdepayments.epdq.co.uk/ncol/test/orderstandard.asp"

Using Client As New WebClient
    Dim Params As New Specialized.NameValueCollection

    With Params
        .Add("PSPID", "")
        .Add("ORDERID", "")
        '......
    End With

    Dim Response As Byte() = Client.UploadValues(Url, "POST", Params)
    Dim ResponseText As String = (New Text.UTF8Encoding).GetString(Response)
End Using

表单POST没有提交按钮

1 个答案: