我正在尝试将贝宝沙箱与我的 asp.net 代码集成。要求是我必须将用户带到贝宝网站，用户将使用他的凭据登录并支付指定金额。
现在我可以将用户带到贝宝网站并按照下面的代码成功完成交易。我的下一步是从贝宝获得回复。在响应中，我需要状态，并且我将在重定向到我想要的响应中的贝宝网站时发送一个唯一 ID，以便我的应用程序可以识别响应来自哪个用户。
private void PayJNP()
{
try
{
string redirectUrl = "";
redirectUrl += "https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_xclick&business=" + ConfigurationManager.AppSettings["paypalemail"].ToString();
redirectUrl += "&first_name=ATPTrader";
redirectUrl += "&item_name=JNP";
redirectUrl += "&amount=100";
redirectUrl += "&return=" + ConfigurationManager.AppSettings["SuccessURL"].ToString();
redirectUrl += "&cancel_return=" + ConfigurationManager.AppSettings["FailedURL"].ToString();
Response.Redirect(redirectUrl);
}
catch (Exception Ex)
{
}
}
请帮我捕捉响应。
TIA
我已经开始实施 IPN，但我遇到了一些问题
我已经在 paypal 网站上配置了 IPN
从一个通过一些隐藏的控件，我将数据发送到贝宝沙箱
<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post" id="form1"
name="form1">
<input type="hidden" name="cmd" value="_xclick"/>
<input type="hidden" name="business" value="shantanusenin@gmail.com"/><!--Paypal or sandbox Merchant account -->
<input type="hidden" name="item_name" value="JNP"/>
<input type="hidden" name="item_number" value="1"/>
<input type="hidden" name="amount" value="100"/>
<input type="hidden" name="return" value="http://alltradepartners.com/test/paypal.aspx"/><!--this page will be your redirection page -->
<input type="hidden" name="cancel_return" value="http://alltradepartners.com/test/partnerregistration.aspx"/>
<input type="hidden" name="currency_code" value="USD"/>
<input type="hidden" name="notify_url" value="http://alltradepartners.com/test/paypal.aspx"/><!--this should be your domain web page where you going to receive all your transaction variables -->
</form>
现在我有一个收集响应的页面
//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#"));
//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")
{
Response.Write("VERIFIED");
//UPDATE YOUR DATABASE
//TextWriter txWriter = new StreamWriter(Server.MapPath("../uploads/") + Session["orderID"].ToString() + ".txt");
//txWriter.WriteLine(strResponse);
//txWriter.Close();
//check the payment_status is Completed
//check that txn_id has not been previously processed
//check that receiver_email is your Primary PayPal email
//check that payment_amount/payment_currency are correct
//process payment
NameValueCollection these_argies = HttpUtility.ParseQueryString(strResponse);
string user_email = these_argies["payer_email"];
string pay_stat = these_argies["payment_status"];
//.
//. more args as needed look at the list from paypal IPN doc
//.
if (pay_stat.Equals("Completed"))
{
Response.Write("Completed");
//Send_download_link("yours_truly@mycompany.com", user_email, "Your order", "Thanks for your order this the downnload link ... blah blah blah");
}
}
else if (strResponse == "INVALID")
{
Response.Write("INVALID");
//UPDATE YOUR DATABASE
//TextWriter txWriter = new StreamWriter(Server.MapPath("../uploads/") + Session["orderID"].ToString() + ".txt");
//txWriter.WriteLine(strResponse);
////log for manual investigation
//txWriter.Close();
}
else
{
Response.Write("SUCCESS");
//UPDATE YOUR DATABASE
//TextWriter txWriter = new StreamWriter(Server.MapPath("../uploads/") + Session["orderID"].ToString() + ".txt");
//txWriter.WriteLine("Invalid");
////log response/ipn data for manual investigation
//txWriter.Close();
}
现在我可以发送请求并获得已验证的响应，但我没有得到 tranactionID。请建议我在哪里失踪
TIA