/// <summary>        /// 微信支付成功,返回信息        /// </summary>        /// <returns></returns>        public void WxZhifuInfo()        {            string post = "";            HttpRequestBase request = Request;            using (System.IO.Stream stream = request.InputStream)            {                Byte[] postBytes = new Byte[stream.Length];                stream.Read(postBytes, 0, (Int32)stream.Length);              post =  System.Text.Encoding.UTF8.GetString(postBytes);            }            writeLogs.writelog("支付成功,返回信息:" + post);            Response.Write("<xml><return_code><![CDATA[SUCCESS]]></return_code></xml>");                               // "<return_msg><![CDATA[]]></return_msg></xml>");            Response.End();        }    /// <summary>    /// 提交微信支付    /// </summary>    /// <param name="orderid">订单编号</param>    /// <param name="title">商品标题</param>    /// <param name="openid">用户编号</param>    /// <param name="weiId">公众号</param>    /// <returns></returns>        public string WxZhifuApi(string orderid,string title,string openid,string weiId)        {            try {                SignCode sign = new SignCode();                //获取商户的配置参数                string sql = "select * from pay_info where Enable=1";//必须保证是一条数据否则默认失败                DataTable dt = SQLiteDBHelper.GetDataTable(sql, weiId);                if (dt.Rows.Count > 0)//查看是否存在数据                {                    sign.appid = dt.Rows[0]["appid"].ToString();                    sign.mch_id = dt.Rows[0]["Mchid"].ToString();                    Setkey = dt.Rows[0]["KeyValue"].ToString();                }                else {                    writeLogs.writelog("查询商户配置参数错误,请检查参数是否正确");                       return "{\"errcode\":\"3\"}";//商户未设置支付参数                }                string Time = ((DateTime.Now.ToUniversalTime().Ticks - 621355968000000000) / 10000000).ToString();                sign.body = title;                sign.nonce_str = "abcdefghijklmnopqrstuvwxyzqqqqqq";//随机数固定不变                sign.openid = openid; //"oaR7LjvZ5qFcoD0q4_zAhhTruqwY";                sign.out_trade_no = orderid; //"D"+Time;                sign.spbill_create_ip = "127.0.0.1";                //使用订单编号查询订单总价格                sql = "select * from order_info where orderid="+orderid+" and openid=‘"+openid+"‘  ";                dt = SQLiteDBHelper.GetDataTable(sql, weiId);                if (dt.Rows.Count > 0)                {                    sign.total_fee = Convert.ToString( float.Parse(dt.Rows[0]["Receivables"].ToString()) * 100); //测试阶段价格写1 ,单位:分                    }                else {                    writeLogs.writelog("查询订单编号价格错误");                    return "{\"errcode\":\"4\"}";//订单编号错误或订单不存在                }                                sign.notify_url = string.Format("http://shop.bcowei.com/Template/WxZhifuInfo");// string.Format("shop.bcowei.com/Template/orderpay?weiId={0}&openid={1}&pay={2}&orderId={3}",weiId,openid,"1",orderid);//接受微信支付成功信息                string code = WxSign(sign);                string url = "https://api.mch.weixin.qq.com/pay/unifiedorder";                prepay p = new prepay();                string result = System.Web.PostAndGet.PostWebRequest(url, code, "utf-8");                XmlSerializer xml = new XmlSerializer(typeof(prepay));                StringReader reader = new StringReader(result);                prepay prepay = xml.Deserialize(reader) as prepay;                if (prepay.result_code == null || prepay.result_code == "")                {                    writeLogs.writelog("prepay_id获取失败,检查参数配置是否正确,参数内容:"+code);                    //Response.Redirect(string.Format("/ordererror/Template?weiId={0}&openid={1}&errcode=11",weiId,openid));                    return "{\"errcode\":\"1\"}";                }                string prepayid =  string.Format("prepay_id={0}", prepay.prepay_id);                Dictionary<string, string> dic = new Dictionary<string, string>();                dic.Add("appId", sign.appid);                dic.Add("timeStamp",Time);                dic.Add("nonceStr",sign.nonce_str);                dic.Add("package", prepayid);                dic.Add("signType", "MD5");               //Template/index1?appid={0}&timeStamp={1}&nonceStr={2}&package={3}&signType={4}&paySign={5}",sign.appid,Time,sign.nonce_str,prepayid,"MD5",WxSignCreate(dic)));                ViewBag.appid = sign.appid;                ViewBag.time = Time;                ViewBag.noncestr = sign.nonce_str;                ViewBag.package = prepayid;                ViewBag.signType = "MD5";                ViewBag.paySign = WxSignCreate(dic);                ViewBag.weiId = weiId;                ViewBag.openid = openid;                ViewBag.orderid = orderid;                return "{\"errcode\":\"0\","+                       "\"appid\":\"" + sign.appid + "\","+                       "\"time\":\"" + Time + "\","+                       "\"noncestr\":\"" + sign.nonce_str + "\","+                       "\"package\":\""+prepayid+"\","+                       "\"signType\":\"MD5\","+                       "\"paySign\":\""+WxSignCreate(dic)+"\""+                       "}";                                               }            catch (Exception e)            {               // Response.Redirect(string.Format("/ordererror/Template?weiId={0}&openid={1}&errcode=15", weiId, openid));                return "{\"errcode\":\"1\"}";            }                   }        /// <summary>        /// key值        /// </summary>        /// <returns></returns>        public static string Setkey { get; set; }        /// <summary>        /// 生成签名        /// </summary>        /// <param name="body">商品描述</param>        /// <param name="openid">用户标识</param>        /// <param name="out_trade_no">订单编号</param>        /// <param name="total_fee">价钱</param>        /// <param name="notify_url">成功跳转路径</param>        /// <param name="spbill_create_ip">设备IP</param>        /// <returns></returns>        public string WxSign(SignCode code)        {            //string appid,string mch_id,string nonce_str,string body, string openid, string out_trade_no, string total_fee, string notify_url, string spbill_create_ip            Dictionary<string, string> sign = new Dictionary<string, string>();//字典建值对            try {                sign.Add("appid",code.appid);//公众号标识,1                sign.Add("body", code.body);//商品描述,0                sign.Add("mch_id", code.mch_id);//商户编号,1                sign.Add("nonce_str",code.nonce_str);//随机字符串,1                sign.Add("openid", code.openid);//微信用户编号,0                sign.Add("out_trade_no", code.out_trade_no);//订单编号,0                sign.Add("spbill_create_ip", code.spbill_create_ip);//设备IP,0                sign.Add("total_fee", code.total_fee);//价钱 单位:分,0                sign.Add("notify_url", code.notify_url);//请求成功跳转地址,0                sign.Add("trade_type", "JSAPI");//支付方式,1                sign.Add("sign", WxSignCreate(sign));//签名                        }            catch (Exception e)            {                writeLogs.writelog("参数键值对异常:"+e.Message);                return "参数键值对异常:" + e.Message;            }            string ddd = WxXml(sign);            return WxXml(sign);//参数转化xml        }        public class getPay {            public string appId { get; set; }            public string timeStamp { get; set; }            public string nonceStr { get; set; }            public string package { get; set; }            public string signType { get; set; }            public string paySign { get; set; }        }        /// <summary>        /// 签名参数        /// </summary>        public class SignCode {            public string appid { get; set; }            public string mch_id { get; set; }            public string nonce_str { get; set; }            public string body { get; set; }            public string openid { get; set; }            public string out_trade_no { get; set; }            public string total_fee { get; set; }            public string notify_url { get; set; }            public string spbill_create_ip { get; set; }        }        /// <summary>        /// 转换xml格式        /// </summary>        /// <param name="dic"></param>        /// <returns></returns>        public string WxXml(Dictionary<string,string> dic)        {            StringBuilder sb = new StringBuilder();            try {                sb.Append("<xml>");                foreach (var key in dic.Keys)                {                     //<appid>wx2421b1c4370ec43b</appid                    sb.Append("<"+key+">"+dic[key]+"</"+key+">");                }                sb.Append("</xml>");            }            catch (Exception e)            {                writeLogs.writelog("参数转换xml异常:"+e.Message);                return null;            }            return sb.ToString();        }        /// <summary>        /// 拼接签名生成        /// </summary>        /// <param name="Sign"></param>        /// <returns></returns>        public string WxSignCreate(Dictionary<string,string> Sign)        {            string create = "";//拼接字符串            try {                              var result = from i in Sign orderby i.Key select i;                foreach(KeyValuePair<string,string> pair in result)                {                    string key = pair.Key;                    string value = http://www.mamicode.com/pair.Value;"=" + value + "&";                }                create = create.TrimEnd(‘&‘);                            }            catch (Exception e)            {                writeLogs.writelog("签名拼接异常:"+e.Message);                return "签名拼接异常:" + e.Message;            }            return WxSignMD5(create);        }        /// <summary>        /// 请求签名MD5        /// </summary>        /// <param name="sign"></param>        /// <returns></returns>        public string WxSignMD5(string sign)        {            string Signstr = sign + "&key=" + Setkey;                return MD5(Signstr).ToUpper();//MD5转换        }        /// <summary>        /// 签名MD5        /// </summary>        /// <param name="s"></param>        /// <returns></returns>        public static String MD5(String s)        {            char[] hexDigits = { ‘0‘, ‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘, ‘7‘, ‘8‘, ‘9‘,					‘A‘, ‘B‘, ‘C‘, ‘D‘, ‘E‘, ‘F‘ };            try            {                byte[] btInput = System.Text.Encoding.UTF8.GetBytes(s);                // 获得MD5摘要算法的 MessageDigest 对象              System.Security.Cryptography.MD5 mdInst = System.Security.Cryptography.MD5.Create();                // 使用指定的字节更新摘要                mdInst.ComputeHash(btInput);                // 获得密文                byte[] md = mdInst.Hash;                // 把密文转换成十六进制的字符串形式                int j = md.Length;                char[] str = new char[j * 2];                int k = 0;                for (int i = 0; i < j; i++)                {                    byte byte0 = md[i];                    str[k++] = hexDigits[(int)(((byte)byte0) >> 4) & 0xf];                    str[k++] = hexDigits[byte0 & 0xf];                }                return new string(str);//编码转换            }            catch (Exception e)            {                writeLogs.writelog("调用签名md5异常:"+e.Message);                return null;            }        }