建行聚合支付
網上C# 的資料比較少，整理下來，歡迎溝通
1. 商戶到銀行
頁面js可直接實現
var URL;
var tmp;
var tmp0;
CCBPaymentURL= "@ViewBag.CCBPaymentURL"; //"https://ibsbjstar.ccb.com.cn/CCBIS/ccbMain?CCB_IBSVersion=V6" config或者appsetting信息
MERCHANTID = "@ViewBag.MERCHANTID";
POSID = "@ViewBag.POSID";
BRANCHID = "@ViewBag.BRANCHID";
CURCODE = "@ViewBag.CURCODE"; //"01"
TXCODE = "@ViewBag.TXCODE"; //"530550"
REMARK1 = '';
REMARK2 = '';
PUB = "@ViewBag.PUB"; //商戶后台下載的 商戶公鑰后30位
tmp = 'MERCHANTID=' + MERCHANTID + '&POSID=' + POSID + '&BRANCHID=' + BRANCHID + '&ORDERID=' + ORDERID;
tmp += '&PAYMENT=' + PAYMENT + '&CURCODE=' + CURCODE + '&TXCODE=' + TXCODE
+ '&REMARK1=' + REMARK1;
tmp += '&REMARK2=' + REMARK2;
tmp += '&RETURNTYPE=2';
tmp += '&TIMEOUT='
tmp0 = tmp;
tmp += '&PUB=' + PUB;
URL = CCBPaymentURL+ '&' + tmp0 + '&MAC=' + hex_md5(tmp) ;
2. 銀行回調商戶地址通知支付結果
string requestqueryString = Request.QueryString.ToString().Replace("?",""); // 拿到回調的參數串
string remove = "";
var requestqueryStrings = requestqueryString.Split("&");
foreach (var item in requestqueryStrings)
{
var items = item.Split("=");
if(items[0] == "SIGN")
{
remove = item;
}
}
string initString = requestqueryString.Replace("&"+remove, ""); //回調的參數串去除SIGN信息 參與驗簽
RSASig rsa = new RSASig();
rsa.setPublicKey(AllPUB); //AllPUB 商戶后台下載的 商戶公鑰全部（不要截取后30位，是全部） config或者appsetting信息
bool result = rsa.verifySigature(Request.Query["SIGN"], initString);
string success = Request.Query["SUCCESS"];
if (result && success == "Y")
{
//todo 處理 支付訂單狀態更改
}