工行支付api查询asp.net C# 实现

工行的测试环境真是非常地烂,给的api查询居然是c++的,还写着dotnet的名字,这里我给出一个asp.net c#的实现

public class ICBC_API

{

    static string apiUrl = "https://corporbank3.dccnet.com.cn/servlet/ICBCINBSEBusinessServlet";

    static string cerPath = ConfigurationManager.AppSettings["CertPath"];

    static string cerPwd = ConfigurationManager.AppSettings["CertPwd"];

    public ICBC_API()

    {

    }



    /// <summary>

    /// 订单查询

    /// </summary>

    /// <param name="orderNum">订单号</param>

    /// <param name="tradeDate">订单日期(yyyyMMdd)</param>

    /// <param name="shopCode">商户代码</param>

    /// <param name="shopAccount">商户帐号</param>

    /// <returns></returns>

    public static string B2C(string orderNum,string tradeDate,string shopCode,string shopAccount)

    {

        //gen post data

        string postParams = "APIName=EAPI&APIVersion=001.001.002.001&MerReqData={0}";

        StringBuilder sb = new StringBuilder();

        sb.Append("<?xml version=\"1.0\" encoding=\"GBK\" standalone=\"no\" ?><ICBCAPI><in><orderNum>");

        sb.Append(orderNum);

        sb.Append("</orderNum><tranDate>");

        sb.Append(tradeDate);

        sb.Append("</tranDate><ShopCode>");

        sb.Append(shopCode);

        sb.Append("</ShopCode><ShopAccount>");

        sb.Append(shopAccount);

        sb.Append("</ShopAccount></in></ICBCAPI>");

        string postData = string.Format(postParams, sb.ToString());



        //验证证书,默认有效

        ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateServerCertificate);



        //配置请求参数

        HttpWebRequest wReq = (HttpWebRequest)WebRequest.Create(apiUrl);

        wReq.ContentType = "application/x-www-form-urlencoded";

        wReq.Method = "POST";

        wReq.ClientCertificates.Add(new X509Certificate2(HttpContext.Current.Server.MapPath(cerPath), cerPwd));

        ASCIIEncoding encoding = new ASCIIEncoding();

        byte[] data = encoding.GetBytes(postData);

        wReq.ContentLength = data.Length;

        Stream reqStream = wReq.GetRequestStream();

        reqStream.Write(data, 0, data.Length);

        reqStream.Close();



        //获取结果

        WebResponse wResp = wReq.GetResponse();

        Stream respStream = wResp.GetResponseStream();

        string stringResp = string.Empty;

        if (respStream != null)

        {

            using (StreamReader respReader = new StreamReader(respStream,Encoding.GetEncoding("GBK")))

            {

                stringResp = respReader.ReadToEnd();

            }

            respStream.Close();

        }



        return stringResp;

    }

}