Question

付款成功后，它会将我重定向到成功网址，但我没有收到来自IPN的回复。

以下是notifypage.aspx.cs页面代码：

protected void Page_Load(object sender, EventArgs e)
{

    //Post back to either sandbox or live
    string strSandbox = "https://www.sandbox.paypal.com/cgi-bin/webscr";
    // string strLive = "https://www.paypal.com/cgi-bin/webscr";
    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(strSandbox);

    //Set values for the request back
    req.Method = "POST";
    req.ContentType = "application/x-www-form-urlencoded";
    byte[] param = Request.BinaryRead(HttpContext.Current.Request.ContentLength);
    string strRequest = Encoding.ASCII.GetString(param);
    strRequest += "&cmd=_notify-validate";
    req.ContentLength = strRequest.Length;

    //for proxy
    //WebProxy proxy = new WebProxy(new Uri("http://url:port#80"));
    //req.Proxy = proxy;

    //Send the request to PayPal and get the response
    StreamWriter streamOut = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII);
    streamOut.Write(strRequest);
    streamOut.Close();
    StreamReader streamIn = new StreamReader(req.GetResponse().GetResponseStream());
    string strResponse = streamIn.ReadToEnd();
    streamIn.Close();


    if (strResponse == "VERIFIED")
    {

        File.WriteAllText(HttpContext.Current.Server.MapPath("~") + @"\Notify.txt", "Student1111" + Environment.NewLine + "----------------------------------------" + Environment.NewLine);
    }
    else if (strResponse == "INVALID")
    {
        File.WriteAllText(HttpContext.Current.Server.MapPath("~") + @"\Notify.txt", "Problem with payment : " + Environment.NewLine + "----------------------------------------" + Environment.NewLine);
    }
    else
    {
        File.WriteAllText(HttpContext.Current.Server.MapPath("~") + @"\Notify.txt", "not any" + Environment.NewLine + "----------------------------------------" + Environment.NewLine);
    }
}

那么请帮助我如何取回IPN回复？

Answer 1

您应该测试IPN Listner此处

的工作情况

https://developer.paypal.com/docs/classic/ipn/integration-guide/IPNTesting/

Answer 2

Paypal IPN响应仅调用服务器域，如果您在本地主机上尝试它，则不会调用您的通知网址页。

没有得到IPN回复

2 个答案: