工商银行在线支付接口

最近做工行的网上支付接口，其中也遇到了不少问题，现在整理一下发布出来希望能对需要的人有所帮助。

参考了下面博客：http://www.cnblogs.com/gonganruyi/archive/2011/07/01/2095463.html

1、首先需要注册工行提供的ICBCEBankUtil.dll，将ICBCEBankUtil.dll和infosecapi.dll复制到system32文件夹下CMD输入regsvr32 ICBCEBankUtil.dll注册控件。WINDOWS SERVER2008/2012等系统需要运行管理员命令提示符。

2、拆分银行提供的.pfx证书文件，生成.key 和.crt两个文件，记住拆分时设置的私钥密码。将ebb2cpublic.crt（公钥文件）、Name.key、Name.crt三个文件复制到指定目录。

3、下面是代码

 <form method="post" action="<%= icmcModel.OrderPostUrl %>" id="order">
        <div style=" 500px; margin: auto auto; padding: 10px; line-height: 30px;">
            正在跳转至工商银行支付地址.....
        </div>
        <input type="hidden" name="interfaceName" value="<%= icmcModel.InterfaceName %>" />
        <input type="hidden" name="interfaceVersion" value="<%= icmcModel.InterfaceVersion %>" />
        <input type="hidden" name="tranData" value="<%= icmcModel.TranData %>" />
        <input type="hidden" name="merSignMsg" value="<%= icmcModel.MerSignMsg %>" />
        <input type="hidden" name="merCert" value="<%= icmcModel.MerCert %>" />
        <script type="text/javascript">        document.getElementById("order").submit();</script>
    </form>

            //用户账号（身份证）
            this.userIdCardNumber = Request.QueryString["userIdCardNumber"];
            //充值金额，（工商银行按分进行计算）
            // this.money = (Convert.ToInt32(Request.QueryString["payMnoney"]) * 100).ToString();
            this.money = "1";
            //生成订单号
            string orderId = DateTime.Now.ToString("yyyyMMddHHmmss") + userIdCardNumber.Substring(userIdCardNumber.Length - 5, 5) + Inhua.Common.Rand.Number(5);
            
            StringBuilder strXml = new StringBuilder();
            strXml.Append("<?xml version="1.0" encoding="GBK" standalone="no"?>");
            strXml.Append("<B2CReq>");
            //接口名称
            strXml.Append("<interfaceName>" + icmcModel.InterfaceName + "</interfaceName>");
            //接口版本号
            strXml.Append("<interfaceVersion>" + icmcModel.InterfaceVersion + "</interfaceVersion>");
            //订单信息
            strXml.Append("<orderInfo>");
            //交易日期时间
            strXml.Append("<orderDate>" + icmcModel.OrderDate + "</orderDate>");
            //支付币种
            strXml.Append("<curType>" + icmcModel.CurType + "</curType>");
            //商户代码
            strXml.Append("<merID>" + icmcModel.MerID + "</merID>");
            //订单信息列表
            strXml.Append("<subOrderInfoList>");
            //订单信息
            strXml.Append("<subOrderInfo>");
            //订单编号
            strXml.Append("<orderid>" + orderId + "</orderid>");
            //订单金额
            //strXml.Append("<amount>" + user.ExaminationModel.Examination_fees.ToString("0.00") + "</amount> ");
            strXml.Append("<amount>" + money + "</amount> ");
            //分期付款期数 1代表全额付款
            strXml.Append("<installmentTimes>1</installmentTimes>");
            //商户账号
            strXml.Append("<merAcct>" + icmcModel.MerAcct + "</merAcct>");
            //商品编号
            strXml.Append("<goodsID>" + icmcModel.Orderid + "</goodsID>");
            //商品名称
            strXml.Append("<goodsName>商品名称</goodsName>");
            //商品数量
            strXml.Append("<goodsNum>1</goodsNum>");
            //已含运费金额
            strXml.Append("<carriageAmt></carriageAmt>");
            strXml.Append("</subOrderInfo>");
            strXml.Append("</subOrderInfoList>");
            strXml.Append("</orderInfo>");
            strXml.Append("<custom>");
            //检验联名标志 取值“1”：客户支付时，网银判断该客户是否与商户联名
            strXml.Append("<verifyJoinFlag>" + icmcModel.VerifyJoinFlag + "</verifyJoinFlag>");
            //语言版本 取值：“EN_US”为英文版；取值：“ZH_CN”或其他为中文版
            strXml.Append("<Language>ZH_CN</Language>");
            strXml.Append("</custom>");
            strXml.Append("<message>");
            //支持订单支付的银行卡种类
            strXml.Append("<creditType>2</creditType>");
            //通知类型
            strXml.Append("<notifyType>" + icmcModel.NotifyType + "</notifyType>");
            //结果发送类型
            strXml.Append("<resultType>" + icmcModel.ResultType + "</resultType>");
            //商户reference
            strXml.Append("<merReference>" + icmcModel.MerReference + "</merReference>");
            //客户端IP 当商户reference项送空时，该项必输
            strXml.Append("<merCustomIp>" + icmcModel.MerIP + "</merCustomIp>");
            //虚拟商品/实物商品标志位 取值“0”：虚拟商品 取值“1”，实物商品
            strXml.Append("<goodsType>0</goodsType>");
            //买家用户号
            strXml.Append("<merCustomID></merCustomID>");
            //买家联系电话
            strXml.Append("<merCustomPhone></merCustomPhone>");
            //收货地址
            strXml.Append("<goodsAddress></goodsAddress>");
            //订单备注
            strXml.Append("<merOrderRemark></merOrderRemark>");
            //商城提示
            strXml.Append("<merHint></merHint>");
            //备注字段1
            strXml.Append("<remark1></remark1>");
            //备注字段2
            strXml.Append("<remark2></remark2>");
            //返回商户URL
            //strXml.Append("<merURL>http://localhost/</merURL>");
            //string url = tools.GetRootVirtualPath();System.Configuration.ConfigurationManager.AppiiciSettings["aa"]
            string merURL = "http://" + icmcModel.MerIP + "/PayOnline/ReturnPayment.aspx";
            strXml.Append("<merURL>" + merURL + "</merURL>");
            //返回商户变量
            strXml.Append("<merVAR>" + Inhua.Common.Encryption.Encrypt(userIdCardNumber) + "</merVAR>");
            strXml.Append("</message>");
            strXml.Append("</B2CReq>");

            //获取工商银行验证
            icmcModel.TranData = strXml.ToString();
            CBCOnlinePayment.CBCPayOnline.GetCheckInfo(icmcModel);

    public class ICBC
    {
        private string _orderPostUrl = "https://B2C.icbc.com.cn/servlet/ICBCINBSEBusinessServlet";
        private string _interfaceName = "ICBC_PERBANK_B2C";
        private string _interfaceVersion = "1.0.0.11";
        private string _orderid;
        /// <summary>
        /// 订单金额
        /// </summary>
        private string _amount;
        /// <summary>
        /// 支付币种
        /// </summary>
        private string _curType = "001";
        /// <summary>
        /// 商户代码
        /// </summary>
        private string _merID = "向银行申请";
        /// <summary>
        /// 商户账号
        /// </summary>
        private string _merAcct = "交易账号";
        /// <summary>
        /// 检验联名标志
        /// 取值“1”：客户支付时，网银判断该客户是否与商户联名，是则按上送金额扣帐，否则展现未联名错误；取值“0”：不检验客户是否与商户联名，按上送金额扣帐。
        /// </summary>
        private string _verifyJoinFlag = "0";
        /// <summary>
        /// 通知类型
        /// 在交易转账处理完成后把交易结果通知商户的处理模式。
        /// 取值“HS”：在交易完成后实时将通知信息以HTTP协议POST方式，主动发送给商户，发送地址为商户端随订单数据提交的接收工行支付结果的URL即表单中的merURL字段；
        /// 取值“AG”：在交易完成后不通知商户。商户需使用浏览器登录工行的B2C商户服务网站，或者使用工行提供的客户端程序API主动获取通知信息。
        /// </summary>
        private string _notifyType = "HS";
        /// <summary>
        /// 返回商户URL
        /// 必须合法的URL，交易结束，将客户引导到商户的此url，即通过客户浏览器post交易结果信息到商户的此URL
        /// 注意：该URL应使用http协议（不能使用https协议），端口号应为80或不指定。
        /// </summary>
        private string _merURL;
        /// <summary>
        /// 结果发送类型
        /// 选输
        /// 取值“0”：无论支付成功或者失败，银行都向商户发送交易通知信息；
        /// 取值“1”，银行只向商户发送交易成功的通知信息。
        /// 只有通知方式为HS时此值有效，如果使用AG方式，可不上送此项，但签名数据中必须包含此项，取值可为空。
        /// </summary>
        private string _resultType = "1";
        /// <summary>
        /// 支付日期
        /// </summary>
        private string _orderDate = System.DateTime.Now.ToString("yyyyMMddHHmmss");

        /// <summary>
        /// 订单签名数据
        /// 必输，
        ///商户使用工行提供的签名API和商户证书将tranData的xml明文串进行签名，得到二进制签名数据，然后进行BASE64编码后得到可视的merSignMsg；
        ///注意：签名时是针对tranData的xml明文，不是将tranData进行BASE64编码后的串；
        /// </summary>
        private string _merSignMsg;

        /// <summary>
        /// 商城证书公钥
        /// 商户用二进制方式读取证书公钥文件后，进行BASE64编码后产生的字符串；
        /// </summary>
        private string _merCert;

        /// <summary>
        /// 商品编号
        /// </summary>
        private string _goodsID = "001";
        /// <summary>
        /// 商品名称
        /// </summary>
        private string _goodsName = "";
        /// <summary>
        /// 商品数量
        /// </summary>
        private string _goodsNum = "1";

        /// <summary>
        /// 已含运费金额
        /// </summary>
        private string _carriageAmt;

        /// <summary>
        /// 备注字段1
        /// </summary>
        private string _remark1;


        /// <summary>
        /// 备注字段2
        /// </summary>
        private string _remark2;

        /// <summary>
        /// 商城提示
        /// </summary>
        private string _merHint;

        /// <summary>
        /// 整合所有交易数据形成的xml明文串，并做BASE64编码；
        /// 具体格式定义见下文；
        /// 注意：
        /// 需有xml头属性；整个字段使用BASE64编码；
        /// xml明文中没有回车换行和多余空格；
        /// </summary>
        private string _tranData;

        /// <summary>
        /// 上送商户网站域名（支持通配符，例如“*.某B2C商城.com”），如果上送，工行会在客户支付订单时，校验商户上送域名与客户跳转工行支付页面之前网站域名的一致性。
        /// </summary>
        private string _merReference = System.Configuration.ConfigurationManager.AppSettings["WebUrl"];

        private string _merIP = System.Configuration.ConfigurationManager.AppSettings["WebIP"];


        private bool _isCheck = false;

        /// <summary>
        /// 是否检测成功
        /// </summary>
        public bool IsCheck
        {
            get { return _isCheck; }
            set { _isCheck = value; }
        }

        /// <summary>
        /// 服务域名
        /// </summary>
        public string MerReference
        {
            get { return _merReference; }
            set { _merReference = value; }
        }

        /// <summary>
        /// 服务IP
        /// </summary>
        public string MerIP
        {
            get { return _merIP; }
            set { _merIP = value; }
        }

        /// <summary>
        /// 报文数据
        /// </summary>
        public string TranData
        {
            get { return _tranData; }
            set { _tranData = value; }
        }

        /// <summary>
        /// 工商支付接口路径
        /// </summary>
        public string OrderPostUrl
        {
            get { return _orderPostUrl; }
            set { _orderPostUrl = value; }
        }

        /// <summary>
        /// 接口名称
        /// </summary>
        public string InterfaceName
        {
            get { return _interfaceName; }
            set { _interfaceName = value; }
        }

        /// <summary>
        /// 接口版本号
        /// </summary>
        public string InterfaceVersion
        {
            get { return _interfaceVersion; }
            set { _interfaceVersion = value; }
        }

        /// <summary>
        /// 订单号
        /// </summary>
        public string Orderid
        {
            get { return _orderid; }
            set { _orderid = value; }
        }

        /// <summary>
        /// 订单金额
        /// </summary>
        public string Amount
        {
            get { return _amount; }
            set { _amount = value; }
        }

        /// <summary>
        /// 支付币种 RMB:001
        /// </summary>
        public string CurType
        {
            get { return _curType; }
            set { _curType = value; }
        }

        /// <summary>
        /// 商户代码
        /// </summary>
        public string MerID
        {
            get { return _merID; }
            set { _merID = value; }
        }

        /// <summary>
        /// 商户账号
        /// </summary>
        public string MerAcct
        {
            get { return _merAcct; }
            set { _merAcct = value; }
        }

        /// <summary>
        /// 检验联名标志 
        /// 取值“1”：客户支付时，网银判断该客户是否与商户联名，是则按上送金额扣帐，否则展现未联名错误；
        /// 取值“0”：不检验客户是否与商户联名，按上送金额扣帐。
        /// </summary>
        public string VerifyJoinFlag
        {
            get { return _verifyJoinFlag; }
            set { _verifyJoinFlag = value; }
        }

        /// <summary>
        /// 通知类型
        /// 取值“HS”：在交易完成后实时将通知信息以HTTP协议POST方式，主动发送给商户，发送地址为商户端随订单数据提交的接收工行支付结果的URL即表单中的merURL字段；
        /// 取值“AG”：在交易完成后不通知商户。商户需使用浏览器登录工行的B2C商户服务网站，或者使用工行提供的客户端程序API主动获取通知信息。
        /// </summary>
        public string NotifyType
        {
            get { return _notifyType; }
            set { _notifyType = value; }
        }

        /// <summary>
        /// 返回商户URL
        /// </summary>
        public string MerURL
        {
            get { return _merURL; }
            set { _merURL = value; }
        }

        /// <summary>
        /// 结果发送类型
        /// </summary>
        public string ResultType
        {
            get { return _resultType; }
            set { _resultType = value; }
        }

        /// <summary>
        /// 交易日期时间
        /// </summary>
        public string OrderDate
        {
            get { return _orderDate; }
            set { _orderDate = value; }
        }

        /// <summary>
        /// 订单签名数据
        /// </summary>
        public string MerSignMsg
        {
            get { return _merSignMsg; }
            set { _merSignMsg = value; }
        }

        /// <summary>
        /// 商城证书公钥
        /// </summary>
        public string MerCert
        {
            get { return _merCert; }
            set { _merCert = value; }
        }

        /// <summary>
        /// 商品编号
        /// </summary>
        public string GoodsID
        {
            get { return _goodsID; }
            set { _goodsID = value; }
        }

        /// <summary>
        /// 商品名称
        /// </summary>
        public string GoodsName
        {
            get { return _goodsName; }
            set { _goodsName = value; }
        }

        /// <summary>
        /// 商品数量
        /// </summary>
        public string GoodsNum
        {
            get { return _goodsNum; }
            set { _goodsNum = value; }
        }

        /// <summary>
        /// 已含运费金额
        /// </summary>
        public string CarriageAmt
        {
            get { return _carriageAmt; }
            set { _carriageAmt = value; }
        }

        /// <summary>
        /// 备注字段1
        /// </summary>
        public string Remark1
        {
            get { return _remark1; }
            set { _remark1 = value; }
        }

        /// <summary>
        /// 备注字段2
        /// </summary>
        public string Remark2
        {
            get { return _remark2; }
            set { _remark2 = value; }
        }

        /// <summary>
        /// 商城提示
        /// </summary>
        public string MerHint
        {
            get { return _merHint; }
            set { _merHint = value; }
        }
    }

  if (Request.Form["notifyData"] != null)
            {
                try
                {
                    ICBC icbcInfo = new ICBC();
                    icbcInfo.TranData = Request.Form["notifyData"];
                    icbcInfo.MerSignMsg = Request.Form["signMsg"].ToString();
                    icbcInfo = CBCOnlinePayment.CBCPayOnline.GetCheckReturnInfo(icbcInfo);
                    //自定义返回的变量
                    this.userIdCardNumber = Inhua.Common.Encryption.Decrypt(Request.Form["merVAR"].ToString());
                    var query = SpringFactory.BusinessFactory.GetStudent(userIdCardNumber);
                    if (icbcInfo.IsCheck)
                    {
                        DataSet myds = new DataSet();
                        StringReader strReader = new StringReader(icbcInfo.TranData);
                        myds.ReadXml(strReader);
                        DataTable mytable = new DataTable();
                        mytable = myds.Tables["bank"];
                        string payDate = myds.Tables["orderInfo"].Rows[0]["orderDate"].ToString().Trim();
                        string amount = myds.Tables["subOrderInfo"].Rows[0]["amount"].ToString().Trim();
                        string orderid = myds.Tables["subOrderInfo"].Rows[0]["orderid"].ToString().Trim();
                        if (null != mytable && mytable.Rows.Count > 0)
                        {
                            if (mytable.Rows[0]["tranStat"].ToString().Trim() == "1")
                            {
                                //这里做成功操作
                                string s2 = payDate.Substring(0, 4) + "-" + payDate.Substring(4, 2) + "-" + payDate.Substring(6, 2) + " " + payDate.Substring(8, 2) + ":" + payDate.Substring(10, 2);
                                DateTime time1 = DateTime.Parse(s2);
                                query.PaymentSucceed(amount, orderid);//支付成功，修改余额
                            }
                            else
                            {
                                SpringFactory.BusinessFactory.GetStudent(this.userIdCardNumber).AddOrderLogs("0", false, "", "未知错误");
                            }
                        }
                    }
                }
                catch (Exception ex)
                {
                    SpringFactory.BusinessFactory.GetStudent(this.userIdCardNumber).AddOrderLogs("0", false, "", ex.Message);
                }
            }
            else
            {
                var result = SpringFactory.BusinessFactory.GetBusinessAnonymousUser();
                result.AddLogs("银行数据返回失败，请通知管理员！");
            }

        }

    public static class CBCPayOnline
    {
        private static string amount;

        /// <summary>
        /// 银行证书文件地址
        /// </summary>
        static string strCertFN = HttpContext.Current.Server.MapPath("~/ICBCcert/ebb2cpublic.crt");

        /// <summary>
        /// 商户证书文件地址
        /// </summary>
        static string strCertFNM = HttpContext.Current.Server.MapPath("~/ICBCcert/zzjy001.crt");

        /// <summary>
        /// 私钥文件名
        /// </summary>
        static string strKeyFN = HttpContext.Current.Server.MapPath("~/ICBCcert/zzjy001.key");

        /// <summary>
        /// 私钥口令
        /// </summary>
        static string strKey = "12345678";
        static string api_url = "https://corporbank.icbc.com.cn/servlet/ICBCINBSEBusinessServlet";
        static string post_params = "APIName=EAPI&APIVersion=001.001.002.001&MerReqData=";
        static string cert_path = HttpContext.Current.Server.MapPath("~/ICBCcert/zzjy001.pfx");
        //商户证书 HttpContext.Current.Server.MapPath("~/ICBCcert/rcsc1.crt");

        public static void Load()
        {
            System.Threading.Thread t = new System.Threading.Thread(CheckOrder);
            t.Start();
        }

        static CBCPayOnline()
        {

        }
        /// <summary>
        /// 检查未提交订单
        /// </summary>
        public static void CheckOrder()
        {
            var query = SpringFactory.BusinessFactory.GetBusinessAnonymousUser();
            while (true)
            {
                var list = query.GetOrderPayList();
                ICBC icbcInfo = new ICBC();
                string outMess = "";
                foreach (var l1 in list)
                {
                    try
                    {
                        var user = SpringFactory.BusinessFactory.GetStudent(l1.userName);
                        string mess = CheckOrder(l1.OrderID, l1.PayDate.ToString("yyyyMMdd"), icbcInfo.MerID, icbcInfo.MerAcct, out outMess);
                        if (mess.Length > 5)//未返回错误编码,返回xml数据
                        {
                            DataSet myds = new DataSet();
                            StringReader strReader = new StringReader(mess);
                            myds.ReadXml(strReader);
                            string stat = myds.Tables["out"].Rows[0]["tranStat"].ToString();
                            if (stat == "1" || stat == "0")
                            {
                                amount = myds.Tables["out"].Rows[0]["amount"].ToString();
                                user.PaymentSucceed(amount, l1.OrderID);
                            }
                        }
                        else
                        {
                            string pays = "";
                            switch (mess)
                            {
                                case "40972": pays = "API查询的订单不存在"; break;
                                case "40973": pays = "API查询过程中系统异常"; break;
                                case "40976": pays = "API查询系统异常"; break;
                                case "40977": pays = "商户证书信息错"; break;
                                case "40978": pays = "解包商户请求数据报错"; break;
                                case "40979": pays = "查询的订单不存在"; break;
                                case "40980": pays = "API查询过程中系统异常"; break;
                                case "40981": pays = "给商户打包返回数据错"; break;

                                case "40982": pays = "系统错误"; break;
                                case "40983": pays = "查询的订单不唯一"; break;
                                case "40987": pays = "商户代码或者商城账号有误"; break;
                                case "40947": pays = "给商户打包返回数据错"; break;
                                case "40948": pays = "商城状态非法"; break;
                                case "40949": pays = "商城类别非法"; break;

                                case "40950": pays = "商城应用类别非法"; break;
                                case "40951": pays = "商户证书id状态非法"; break;
                                case "40952": pays = "商户证书id未绑定"; break;
                                case "40953": pays = "商户id权限非法"; break;
                                case "40954": pays = "检查商户状态时数据库异常"; break;
                            }
                            //清除不存在的订单
                            if (mess == "40972")
                            {
                                if (DateTime.Now.AddMonths(-6) > l1.PayDate)
                                {
                                    var result = SpringFactory.BusinessFactory.GetStudent(l1.userName);
                                    result.OrderFaild(l1.OrderID);
                                }

                            }
                            else//添加错误日志
                            {
                                SpringFactory.BusinessFactory.GetBusinessAnonymousUser().AddLogs("错误编码：" + mess + "，" + pays, l1.OrderID);
                            }
                        }
                    }
                    catch (Exception e)
                    {
                        SpringFactory.BusinessFactory.GetBusinessAnonymousUser().AddLogs(e.Message, l1.OrderID);
                        throw e;
                    }
                }
                System.Threading.Thread.Sleep(1000 * 60 * 30);
            }
        }

        /// <summary>
        /// 根据订单号查询订单
        /// </summary>
        /// <param name="orderID"></param>
        /// <returns></returns>
        public static string ChenkOrder(string orderID, DateTime? payDate, string userIdCardNumber)
        {
            if (orderID.Trim().Length != 24)
            {
                return "订单号不正确，请输入24位订单号";
            }

            ICBC icbcInfo = new ICBC();

            //查询充值日志
            var logModel = SpringFactory.BusinessFactory.GetBusinessAnonymousUser().GetPayLogsByOrderId(orderID, userIdCardNumber);
            if (logModel != null)
            {
                return "已经缴费成功。";
            }

            string outMess = "";
            string zfrq = orderID.Substring(0, 8);//支付日期
            if (payDate != null && payDate != DateTime.MinValue)
            {
                zfrq = payDate.Value.ToString("yyyyMMdd");
            }
            var payModel = SpringFactory.BusinessFactory.GetBusinessAnonymousUser().GetOrderModel(orderID, userIdCardNumber);
            string mess = CheckOrder(orderID, zfrq, icbcInfo.MerID, icbcInfo.MerAcct, out outMess);
            if (mess.Length > 5)//未返回错误编码,返回xml数据
            {
                DataSet myds = new DataSet();
                StringReader strReader = new StringReader(mess);
                try
                {
                    myds.ReadXml(strReader);
                }
                catch
                {
                    throw new Exception("错误数据：" + mess);
                }
                //查询订单列表
                var user = SpringFactory.BusinessFactory.GetStudent(userIdCardNumber);
                string stat = myds.Tables["out"].Rows[0]["tranStat"].ToString();
                amount = myds.Tables["out"].Rows[0]["amount"].ToString();
                if (stat == "1" || stat == "0")
                {
                    if (payModel != null)
                    {
                        user.PaymentSucceed(amount, orderID);
                        return "已经支付成功！
订单号" + orderID + "
支付金额：" + amount;
                    }
                    else
                    {
                        string payTimes = myds.Tables["in"].Rows[0]["tranDate"].ToString();
                        user.UpdatePaymentInformation(amount, orderID, userIdCardNumber);
                        return "已经支付成功!";
                    }
                }
                else
                {
                    string pays = "";
                    if (stat == "2")
                        pays = "支付失败";
                    else
                        pays = "可疑交易";
                    //添加错误日志
                    SpringFactory.BusinessFactory.GetBusinessAnonymousUser().AddLogs("支付失败或可疑交易，" + stat, orderID);
                    return pays;
                }
            }
            else
            {
                string pays = "";
                switch (mess)
                {
                    case "40972": pays = "API查询的订单不存在"; break;
                    case "40973": pays = "API查询过程中系统异常"; break;
                    case "40976": pays = "API查询系统异常"; break;
                    case "40977": pays = "商户证书信息错"; break;
                    case "40978": pays = "解包商户请求数据报错"; break;
                    case "40979": pays = "查询的订单不存在"; break;
                    case "40980": pays = "API查询过程中系统异常"; break;
                    case "40981": pays = "给商户打包返回数据错"; break;

                    case "40982": pays = "系统错误"; break;
                    case "40983": pays = "查询的订单不唯一"; break;
                    case "40987": pays = "商户代码或者商城账号有误"; break;
                    case "40947": pays = "给商户打包返回数据错"; break;
                    case "40948": pays = "商城状态非法"; break;
                    case "40949": pays = "商城类别非法"; break;

                    case "40950": pays = "商城应用类别非法"; break;
                    case "40951": pays = "商户证书id状态非法"; break;
                    case "40952": pays = "商户证书id未绑定"; break;
                    case "40953": pays = "商户id权限非法"; break;
                    case "40954": pays = "检查商户状态时数据库异常"; break;

                }
                //清除不存在的订单
                if (mess == "40972")
                {
                    if (payModel != null)
                    {
                        var result = SpringFactory.BusinessFactory.GetStudent(payModel.userName);
                        result.OrderFaild(orderID);
                    }

                }
                else//添加失败失败日志
                {
                    if (payModel != null)
                    {
                        SpringFactory.BusinessFactory.GetBusinessAnonymousUser().AddLogs("错误编码：" + mess + pays, orderID);
                    }
                }
                return pays;
            }
        }

        /// <summary>
        /// 获取工商银行验证信息
        /// </summary>
        /// <param name="argIcbc"></param>
        /// <returns></returns>
        public static DataTransfer.ICBC GetCheckInfo(DataTransfer.ICBC argIcbc)
        {
            string strMerSignMsg = string.Empty;
            B2CUtil icbcObj = new B2CUtil();
            int jg = icbcObj.init(strCertFN, strCertFNM, strKeyFN, strKey);
            if (jg == 0)
            {
                argIcbc.MerSignMsg = icbcObj.signC(argIcbc.TranData, argIcbc.TranData.Length);
                if (argIcbc.MerSignMsg == "")
                {
                    int returnCode = icbcObj.getRC();
                    SpringFactory.BusinessFactory.GetBusinessAnonymousUser().AddLogs("错误编码:" + returnCode + "，签名错误", "");
                }
                argIcbc.MerCert = icbcObj.getCert(1);
                byte[] bytes = Encoding.Default.GetBytes(argIcbc.TranData);
                argIcbc.TranData = Convert.ToBase64String(bytes);
            }
            else
            {
                SpringFactory.BusinessFactory.GetBusinessAnonymousUser().AddLogs(jg.ToString() + ",证书错误或私钥错误编码", "");
            }
            return argIcbc;
        }

        /// <summary>
        /// 获取工商银行验证信息
        /// </summary>
        /// <param name="argIcbc"></param>
        /// <returns></returns>
        public static DataTransfer.ICBC GetCheckReturnInfo(DataTransfer.ICBC argIcbc)
        {
            string strMerSignMsg = string.Empty;
            B2CUtil icbcObj = new B2CUtil();

            if (icbcObj.init(strCertFN, strCertFNM, strKeyFN, strKey) == 0)
            {
                argIcbc.TranData = Decode(argIcbc.TranData);
                //判断验证银行签名是否成功
                if (icbcObj.verifySignC(argIcbc.TranData, argIcbc.TranData.Length, argIcbc.MerSignMsg, argIcbc.MerSignMsg.Length) == 0)
                {
                    argIcbc.IsCheck = true;
                }
                else
                    argIcbc.IsCheck = false;//todo:签名失败
            }
            else
            {
                argIcbc.IsCheck = false;
            }
            return argIcbc;
        }

        /// <summary>
        /// 加密信息
        /// </summary>
        /// <param name="data"></param>
        /// <returns></returns>
        public static string Encode(string data)
        {
            try
            {
                return Inhua.Common.Encryption.Encrypt(data);
            }
            catch (Exception e)
            {
                throw new Exception(e.Message);
            }
        }

        /// <summary>
        /// 解密信息
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string Decode(string str)
        {
            byte[] outputb = Convert.FromBase64String(str);
            string orgStr = Encoding.Default.GetString(outputb);
            return orgStr;
        }

        /// <summary>
        /// 查询订单
        /// </summary>
        /// <param name="strOrderNum">订单号</param>
        /// <param name="strTranDate">交易日期</param>
        /// <param name="strShopCode">商家代码</param>
        /// <param name="strShopAccount">商城账号</param>
        /// <param name="errInfo"></param>
        /// <returns></returns>
        public static string CheckOrder(string strOrderNum, string strTranDate, string strShopCode, string strShopAccount, out string errInfo)
        {
            try
            {
                errInfo = string.Empty;
                StringBuilder sb = new StringBuilder();
                sb.Append("<?xml  version="1.0" encoding="GBK" standalone="no" ?><ICBCAPI><in><orderNum>");
                sb.Append(strOrderNum);
                sb.Append("</orderNum><tranDate>");
                sb.Append(strTranDate);
                sb.Append("</tranDate><ShopCode>");
                sb.Append(strShopCode);
                sb.Append("</ShopCode><ShopAccount>");
                sb.Append(strShopAccount);
                sb.Append("</ShopAccount></in></ICBCAPI>");
                string post_data = post_params + sb.ToString();
                string retruenstring = PostDataBySSL(post_data, api_url, cert_path, strKey, out errInfo);
                if (retruenstring.Length <= 5)
                {
                    return retruenstring;
                }
                return HttpUtility.UrlDecode(retruenstring);
            }
            catch (Exception ex)
            {
                var result = SpringFactory.BusinessFactory.GetBusinessAnonymousUser();
                result.AddLogs(ex.Message, "");
                errInfo = ex.Message;
                return ex.Message;
            }
        }

        /// <summary>
        /// 发送SSL加密请求
        /// </summary>
        /// <param name="post_data"></param>
        /// <param name="url"></param>
        /// <param name="cert_path"></param>
        /// <param name="cert_password"></param>
        /// <param name="errInfo"></param>
        /// <returns></returns>
        public static string PostDataBySSL(string post_data, string url, string cert_path, string cert_password, out string errInfo)
        {
            errInfo = string.Empty;
            try
            {
                ASCIIEncoding encoding = new ASCIIEncoding();
                byte[] data = encoding.GetBytes(post_data);
                if (cert_path != string.Empty)
                    ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateServerCertificate);

                WebRequest webRequest = WebRequest.Create(url);
                HttpWebRequest httpRequest = webRequest as HttpWebRequest;

                if (cert_path.ToLower().EndsWith(".cer"))
                {
                    httpRequest.ClientCertificates.Add(X509Certificate.CreateFromCertFile(cert_path));
                }

                else
                {
                    //SpringFactory.BusinessFactory.GetBusinessAnonymousUser().AddLogs(cert_path);
                    httpRequest.ClientCertificates.Add(new X509Certificate2(cert_path, cert_password, X509KeyStorageFlags.MachineKeySet));


                }
                httpRequest.KeepAlive = true;
                httpRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0)";
                httpRequest.ContentType = "application/x-www-form-urlencoded";
                httpRequest.Method = "POST";

                httpRequest.ContentLength = data.Length;
                Stream requestStream = httpRequest.GetRequestStream();
                requestStream.Write(data, 0, data.Length);
                requestStream.Close();
                Stream responseStream = null;
                responseStream = httpRequest.GetResponse().GetResponseStream();
                string stringResponse = string.Empty;
                if (responseStream != null)
                {
                    using (StreamReader responseReader =
                        new StreamReader(responseStream, Encoding.GetEncoding("GBK")))
                    {
                        stringResponse = responseReader.ReadToEnd();
                    }
                    responseStream.Close();
                }
                return stringResponse;
            }
            catch (Exception e)
            {
                errInfo = e.Message;

                SpringFactory.BusinessFactory.GetBusinessAnonymousUser().AddLogs(e.Message, "");
                return string.Empty;
            }
        }

        public static bool ValidateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
        {
            return true;
        }

    }

现在来说一说可能遇到的问题（我本人遇到了以下错误，windows server2012的服务器）：

1、发布到服务器后，跳转到支付页面时报下图所示错误：

提问的时候有人说是ICBCEBankUtil.dll没有注册的原因，但事实上我注册过多次，每次都提示注册成功。搜索一番之后终于解决了这个问题，打开IIS 选择，应用程序池-选择你的程序所使用的应用程序池-右键-高级设置-启用32位应用程序项设置为True（默认False）。

如下图所示：

2、做工行查询接口的时候在本地没有问题，发布到服务器上之后一直报错系统找不到指定的文件，而服务器上证书文件是存在的。具体代码如下：

我排查过在执行 httpRequest.ClientCertificates.Add(new X509Certificate2(cert_path, cert_password));这一句代码的时候抛异常了，“系统找不到指定的文件“，但是证书文件我已经上产到服务器上了。折腾了N长时间后终于解决了，把原来的X509Certificate2 cert = new X509Certificate2(cert_path, "12345678");加了一个参数改为：X509Certificate2 cert=  new X509Certificate2(cert_path, cert_password, X509KeyStorageFlags.MachineKeySet) 。具体过程参考我的博问http://q.cnblogs.com/q/54288/

这篇文章就写到这里，希望能对大家有所帮助