Httpcontext.request（“”）在ashx处理程序中返回空值

Question

我正在以application / x-www-form-urlencoded格式向我的ashx处理程序发布一些数据。 httpcontext.request.params显示空值。我不知道出了什么问题。这是我的代码，我很确定我已经在Postman rest客户端发布了密钥和值。

     <%@ WebHandler Language="VB" Class="Repository" %>

    Imports System
     Imports System.Web
     Imports System.IO

    Public Class Repository : Implements IHttpHandler
Private Shared cp_merchant_id As String = "e7204ccb734bac3fdf937124448acb6c"
Private Shared cp_ipn_secret As String = "Prodigy1234"
Private Shared cp_debug_email As String = "dipad10@rocketmail.com"
Private Shared order_total As String = "0.0102"
Private txn_id As String, item_name As String, item_number As String, amount1 As Double, amount As Double, amount2 As Double, currency1 As String, _
currency2 As String, status As Integer, status_text As String, email As String, custom As String
Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest



    If context.Request("ipn_mode") = "" Then
        context.Response.Write("An Error Occured")
        Exit Sub
    End If

        If context.Request("merchant") = "" Or context.Request("merchant") <> Trim(cp_merchant_id) Then

            context.Response.Write("No or incorrect Merchant ID passed")
            Exit Sub
        End If


    'validate if the malicious person doesnt know the ipnmode

    'this means either button,cart,deposit, and so on
    txn_id = context.Request("txn_id")
    item_name = context.Request("item_name")
    item_number = context.Request("item_number")
    amount1 = context.Request("amount1")
    amount2 = context.Request("amount2")
    currency1 = context.Request("currency1")
    currency2 = context.Request("currency2")
    status = context.Request("status")
    status_text = context.Request("status_text")
    email = context.Request("email")
    custom = context.Request("custom")
    'check against order total

    'If amount1 < order_total Then
    '    Response.Write("Amount cannot be lesser than 0.01015 BTC")
    '    Exit Sub
    'End If
    Dim commission As Double = 0.00015

    'check status
    If status >= 100 Or status = 2 Then
        'means payment is complete save data and send mail saying transaction successful

    ElseIf status < 0 Then
        'payment error, this is usually final but payments will sometimes be reopened if there was no exchange rate conversion or with seller consent 
        context.Response.Write("Payment Error")
    Else
        'payment is pending, you can optionally add a note to the order page 
        context.Response.Write("Payment Pending")
    End If


End Sub

    Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable
    Get
        Return False
    End Get
End Property

End Class

Answer 1

它应该工作。请确保在标题中将Content-Type设置为application/x-www-form-urlencoded，并将值作为键值对放在 body 中。

Content-Type : application/x-www-form-urlencoded

（点击图片查看实际尺寸）