联科快付WebAPI在线文档

    public static string Post(string method, string jsonData, string merchantNo, string merchantKey)
    {
        string postUrl = string.Concat(rootUrl, method);     //rootUrl:"HTTPS://API.LianKeOnline.COM/QuickPay/",method:"Pay"

        byte[] bytes = Encoding.UTF8.GetBytes(jsonData);
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(postUrl);

        if (!string.IsNullOrEmpty(merchantNo))
        {
            string timeStamp = GetTimeStamp();
            string nonce = GetRandom();
            //加入头信息
            request.Headers.Add("merchantno", merchantNo);   //当前请求商户编码
            request.Headers.Add("merchantkey", merchantKey); //当前请求商户秘钥
            request.Headers.Add("timestamp", timeStamp);     //发起请求时的时间戳（单位：毫秒）
            request.Headers.Add("nonce", nonce);             //随机数
            request.Headers.Add("signature", GetSignature(timeStamp, nonce, merchantNo, merchantKey, jsonData)); //当前请求内容的数字签名
        }
        //写数据
        request.Method = "POST";
        request.ContentLength = bytes.Length;
        request.ContentType = "application/json";
        Stream reqstream = request.GetRequestStream();
        reqstream.Write(bytes, 0, bytes.Length);

        //读数据
        request.Timeout = 30000;
        request.Headers.Set("Pragma", "no-cache");
        HttpWebResponse response = (HttpWebResponse)request.GetResponse();
        Stream streamReceive = response.GetResponseStream();
        StreamReader streamReader = new StreamReader(streamReceive, Encoding.UTF8);
        string strResult = streamReader.ReadToEnd();

        //关闭流
        reqstream.Close();
        streamReader.Close();
        streamReceive.Close();
        request.Abort();
        response.Close();

        return strResult;
    }
                                

    public static String Post(String method, String jsonData, String merchantNo, String merchantKey)
    {
	    url = String.Concat(rootUrl, method);

	    byte[] bytes = Encoding.UTF8.GetBytes(jsonData);
	    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

        if(merchantNo!=null && !merchantNo.equals(""))
	    {
		    String timeStamp = GetTimeStamp();
		    String nonce = GetRandom();
		    //加入头信息
		    request.Headers.Add("merchantno", merchantNo);   //当前请求商户编码
		    request.Headers.Add("merchantkey", merchantKey); //当前请求商户秘钥
		    request.Headers.Add("timestamp", timeStamp);     //发起请求时的时间戳（单位：毫秒）
		    request.Headers.Add("nonce", nonce);             //随机数
		    request.Headers.Add("signature", GetSignature(timeStamp, nonce, merchantNo, merchantKey, jsonData)); //当前请求内容的数字签名
	    }
	    //写数据
	    request.Method = "POST";
	    request.ContentLength = bytes.length;
	    request.ContentType = "application/json";
	    Stream reqstream = request.GetRequestStream();
	    reqstream.Write(bytes, 0, bytes.length);

	    //读数据
	    request.Timeout = 30000;
	    request.Headers.Set("Pragma", "no-cache");
	    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
	    Stream streamReceive = response.GetResponseStream();
	    StreamReader streamReader = new StreamReader(streamReceive, Encoding.UTF8);
	    String strResult = streamReader.ReadToEnd();

	    //关闭流
	    reqstream.Close();
	    streamReader.Close();
	    streamReceive.Close();
	    request.Abort();
	    response.Close();

	    return strResult;
    }
                            

    function post($method, $postdata, $merchantNo, $merchantKey)
    {
	    $url = $rooturl . $method
        //添加header信息
        $header = [
            'Content-Type: application/json',
            'Content-Length: ' . strlen($jsonData),
        ];
	
	    $timestamp = time().'000'
	    $nonce = generateNonceStr()
	
	    $header = [
        'merchantno' => $merchantNo,
        'merchantkey' => $merchantKey,
        'timestamp' => $timestamp,
        'nonce' => $nonce,
	    'signature' => getsignature($timestamp,$nonce,$merchantno,$merchantkey,$postdata),
	    ];
	
        if ($optionHeader) {
            foreach ($optionHeader as $k => $v) {
                $header[] = $k . ': '.$v;
            }
        }
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        //发送post信息
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonParams);
        //发送header
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $response = curl_exec($ch);
        curl_close($ch);

        return $response;
    }
    

    public static string GetSignature(string timeStamp, string nonce, string merchantNo, string merchanKey, string jsonData)
    {
        var hash = System.Security.Cryptography.MD5.Create();
        //拼接签名数据
        var signStr = string.Concat(timeStamp, nonce, merchantNo, merchanKey, jsonData);

        var bytes = Encoding.UTF8.GetBytes(signStr);
        //使用MD5加密
        var md5Val = hash.ComputeHash(bytes);
        //把二进制转化为大写的十六进制
        StringBuilder result = new StringBuilder();
        foreach (var c in md5Val)
        {
            result.Append(c.ToString("X2"));
        }

        return result.ToString().ToUpper();
    }
                            

    public static String GetSignature(String timeStamp, String nonce, String merchantNo, String merchanKey, String jsonData)
    {
        MessageDigest md = MessageDigest.getInstance("MD5");
        //拼接签名数据
        String signStr = timeStamp+nonce+merchantNo+merchantKey+jsonData;
        
        byte[] md5Val  = md.digest(signStr.getBytes("UTF8"));
        StringBuffer result = new StringBuffer(md5Val.length);
        String sTmp;

        for (int i = 0; i < md5Val.length; i++) {
            sTmp = Integer.toHexString(0xFF & md5Val[i]);
            if (sTmp.length() < 2)
                result.append(0);
            result.append(sTmp);
        }
		
        return result.toString().toUpperCase();
    }
                            

    function  getsignature($timestamp,$nonce,$merchantno,$merchantkey,$postdata)
    {
	    $signStr = $timestamp . $nonce . $merchantno . $merchantkey . $postdata;
	
	    return strtoupper(md5($signStr));
    }