PayPal支付接口

protected void shopBasketCheckout_OnServerClick(object source,EventArgs e)
{
 string postData = "";
 postData += "currency_code=GBP";
 postData += "&cmd=_cart";
 postData += "[email protected]";
 postData += "&upload=1";
 postData += "&cancel_return=www.davidmillington.net";
 DataTable dtBasket = getBasketDt();
 double total = 0.00;
 for(int i = 0; i < dtBasket.Rows.Count; i++)
 {
  postData += "&item_name_" + (i + 1) + "=" +
  dtBasket.Rows[i]["name"];
  postData += "&quantity_" + (i + 1) + "=" +
  dtBasket.Rows[i]["quantity"];
  postData += "&amount_" + (i + 1) + "=" +
  Convert.ToDouble(dtBasket.Rows[i]["price"]);
  total += (Convert.ToDouble(dtBasket.Rows[i]
["price"]) * Convert.ToInt32(dtBasket.Rows[i]["quantity"]));
  if(i == dtBasket.Rows.Count - 1)
  {
   postData += "&shipping_" + (i + 1) + "=" + calcDeliveryCost(total);
  }
  else
  {
   postData += "&shipping_" + (i + 1) + "=0.00";
  }
  postData += "&shipping2_" + (i + 1) + "=0.00";
  postData += "&handling_" + (i + 1) + "=0.00";
 }
 postData += "&handling=" + calcDeliveryCost(total);
 byte[] data = Encoding.ASCII.GetBytes(postData);
 HttpWebRequest ppRequest = (HttpWebRequest)
WebRequest.Create("https://www.paypal.com/cgi-bin/webscr");;
 ppRequest.Method = "POST";
 ppRequest.ContentType = "application/x-www-form-
 urlencoded";
 ppRequest.ContentLength = data.Length;
 //发送
 Stream ppStream = ppRequest.GetRequestStream();
 ppStream.Write(data, 0, data.Length);
 ppStream.Close();
 //接收
 HttpWebResponse ppResponse = (HttpWebResponse)ppRequest.GetResponse();
 StreamReader sr = new StreamReader(ppResponse.GetResponseStream());
 string strResult = sr.ReadToEnd();
 sr.Close();
 //输出到屏幕
 Response.Clear();
 Response.Write(strResult);
 Response.End();
}

转载于:https://www.cnblogs.com/zhuangjunx/archive/2007/03/18/679166.html

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