读取接口

  public string orderapi(string hicardMerchNo, string hicardOrderNo,string merchOrderNo)

    {

        string payTime = System.DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss");

        string key = "验证密钥"

        string strURL = "接口地址";

        Dictionary<String, String> sParams = new Dictionary<string, string>();

        sParams.Add("version", "V001");  //版本号

        sParams.Add("hicardMerchNo", hicardMerchNo);  //汇卡商户号

        sParams.Add("merchOrderNo", merchOrderNo);  //商户订单号

        sParams.Add("hicardOrderNo", hicardOrderNo);  //汇卡订单号

        System.Net.HttpWebRequest request;

        request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);

        request.Method = "POST";

        request.ContentType = "application/json;charset=UTF-8";

        string paraUrlCoded = "{\"version\":\"V001\",\"hicardMerchNo\":\"" + hicardMerchNo + "\",\"merchOrderNo\":\"" + merchOrderNo + "\",\"hicardOrderNo\":\"" + hicardOrderNo + "\",\"createTime\":\"" + payTime + "\",\"organNo\":\"机构号\",\"sign\":\"" + getsign(sParams, key, 0) + "\"}"; ;

        byte[] payload;

        payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded);

        request.ContentLength = payload.Length;

        Stream writer = request.GetRequestStream();

        writer.Write(payload, 0, payload.Length);

        writer.Close();

        System.Net.HttpWebResponse response;

        response = (System.Net.HttpWebResponse)request.GetResponse();

        System.IO.Stream s;

        s = response.GetResponseStream();

        string StrDate = "";

        string strValue = "";

        //取得返回的JSON

        StreamReader Reader = new StreamReader(s, Encoding.UTF8);

        while ((StrDate = Reader.ReadLine()) != null)

        {

            strValue += StrDate + "\r\n";

        }

        return strValue;

    }