/// <summary>
/// 获取code_url 扫二维码支付使用
/// </summary>
public static string getCode_url(UnifiedOrder order, string key)
{
string code_url = "";
string post_data = getUnifiedOrderXml(order, key);
string request_data = PostXmlToUrl(UnifiedPayUrl, post_data);
SortedDictionary <string, string> requestXML = GetInfoFromXml(request_data);
foreach (KeyValuePair <string, string> k in requestXML)
{
if (k.Key == "code_url")
{
code_url = k.Value;
break;
}
}
return(code_url);
}
/// <summary>
/// 获取prepay_id
/// </summary>
public static string getPrepay_id(UnifiedOrder order, string key)
{
string prepay_id = "";
string post_data = getUnifiedOrderXml(order, key);
string request_data = PostXmlToUrl(UnifiedPayUrl, post_data);
SortedDictionary <string, string> requestXML = GetInfoFromXml(request_data);
foreach (KeyValuePair <string, string> k in requestXML)
{
if (k.Key == "prepay_id")
{
prepay_id = k.Value;
break;
}
}
return(prepay_id);
}
/// <summary>
/// 微信统一下单接口xml参数整理
/// </summary>
/// <param name="order">微信支付参数实例</param>
/// <param name="key">密钥</param>
/// <returns></returns>
protected static string getUnifiedOrderXml(UnifiedOrder order, string key)
{
string return_string = string.Empty;
SortedDictionary <string, string> sParams = new SortedDictionary <string, string>();
sParams.Add("appid", order.appid);
sParams.Add("attach", order.attach);
sParams.Add("body", order.body);
sParams.Add("device_info", order.device_info);
sParams.Add("mch_id", order.mch_id);
sParams.Add("nonce_str", order.nonce_str);
sParams.Add("notify_url", order.notify_url);
sParams.Add("openid", order.openid);
sParams.Add("out_trade_no", order.out_trade_no);
sParams.Add("spbill_create_ip", order.spbill_create_ip);
sParams.Add("total_fee", order.total_fee.ToString());
sParams.Add("trade_type", order.trade_type);
order.sign = getsign(sParams, key);
sParams.Add("sign", order.sign);
// <xml>
// <sign></sign>
// <mch_billno></mch_billno>
// <mch_id></mch_id>
// <wxappid></wxappid>
// <nick_name></nick_name>
// <send_name></send_name>
// <re_openid></re_openid>
// <total_amount></total_amount>
// <min_value></min_value>
// <max_value></max_value>
// <total_num></total_num>
// <wishing></wishing>
// <client_ip></client_ip>
// <act_name></act_name>
// <act_id></act_id>
// <remark></remark>
// <logo_imgurl></logo_imgurl>
// <share_content></share_content>
//</xml>
//拼接成XML请求数据
StringBuilder sbPay = new StringBuilder();
foreach (KeyValuePair <string, string> k in sParams)
{
if (k.Key == "attach" || k.Key == "body" || k.Key == "sign")
{
sbPay.Append("<" + k.Key + "><![CDATA[" + k.Value + "]]></" + k.Key + ">");
}
else
{
sbPay.Append("<" + k.Key + ">" + k.Value + "</" + k.Key + ">");
}
}
return_string = string.Format("<xml>{0}</xml>", sbPay.ToString());
byte[] byteArray = Encoding.UTF8.GetBytes(return_string);
return_string = Encoding.GetEncoding("GBK").GetString(byteArray);
return(return_string);
}
/// <summary>
/// 微信统一下单接口xml参数整理
/// </summary>
/// <param name="order">微信支付参数实例</param>
/// <param name="key">密钥</param>
/// <returns></returns>
private string getUnifiedOrderXml(UnifiedOrder order, string key)
{
string return_string = string.Empty;
SortedDictionary<string, string> sParams = new SortedDictionary<string, string>();
sParams.Add("appid", order.appid);
sParams.Add("attach", order.attach);
sParams.Add("body", order.body);
sParams.Add("device_info", order.device_info);
sParams.Add("mch_id", order.mch_id);
sParams.Add("nonce_str", order.nonce_str);
sParams.Add("notify_url", order.notify_url);
sParams.Add("openid", order.openid);
sParams.Add("out_trade_no", order.out_trade_no);
sParams.Add("spbill_create_ip", order.spbill_create_ip);
sParams.Add("total_fee", order.total_fee.ToString());
sParams.Add("trade_type", order.trade_type);
order.sign = CreateSign(sParams, key);
sParams.Add("sign", order.sign);
//拼接成XML请求数据
StringBuilder sbPay = new StringBuilder();
foreach (KeyValuePair<string, string> k in sParams)
{
if (k.Key == "attach" || k.Key == "body" || k.Key == "sign")
{
sbPay.Append("<" + k.Key + "><![CDATA[" + k.Value + "]]></" + k.Key + ">");
}
else
{
sbPay.Append("<" + k.Key + ">" + k.Value + "</" + k.Key + ">");
}
}
return_string = string.Format("<xml>{0}</xml>", sbPay.ToString());
byte[] byteArray = Encoding.UTF8.GetBytes(return_string);
return_string = Encoding.GetEncoding("GBK").GetString(byteArray);
return return_string;
}
/// <summary>
/// 获取prepay_id
/// </summary>
public string getPrepay_id(UnifiedOrder order, string key)
{
string prepayId = "";
string postData = getUnifiedOrderXml(order, key);
LogHelper.WriteInfoLog("微信支付统一接口post请求data：" + postData);
string requestData = PostDataToUrl(UnifiedPayUrl, postData);
LogHelper.WriteInfoLog("微信支付统一接口post请求返回：" + requestData);
SortedDictionary<string, string> requestXML = GetInfoFromXml(requestData);
foreach (KeyValuePair<string, string> k in requestXML)
{
if (k.Key == "prepay_id")
{
prepayId = k.Value;
break;
}
}
return prepayId;
}
protected override string GetAjaxResult(HttpContext context)
{
PayLogBll payBll = new PayLogBll();
var rsp = new object();
string action = context.Request["action"];
string baseUrl = ConfigurationManager.AppSettings["BaseUrl"];
//三段逻辑：发起支付、支付成功、支付失败
switch (action)
{
case "0": //发起支付：由payOrder.aspx调用
#region 准备微信支付所需参数
#region 相关配置参数
TenpayUtil tenpay = new TenpayUtil();
string paySignKey = ConfigurationManager.AppSettings["PaySignKey"];
string appSecret = ConfigurationManager.AppSettings["AppSecret"];
string mchId = ConfigurationManager.AppSettings["mch_id"];
string appId = ConfigurationManager.AppSettings["AppId"];
#endregion
#region 获取前台传值
string code = context.Request["code"];
string state = context.Request["state"]; //支付金额_报名开始时间_报名截止时间，例如:1_2016-01-01
string[] strState = state.Split('_');
string school = context.Request["schoolName"];
string nm = context.Request["name"];
string sex = context.Request["sx"];
string identity = context.Request["id"];
string telNo = context.Request["tel"];
#endregion
#region 活动时间过期判断
DateTime endTime = Convert.ToDateTime(strState[1]);
if (DateTime.Now > endTime)
throw new Exception("亲，本次活动报名已经结束啦，请您继续关注休行最新活动！");
#endregion
#region 用户报名重复验证
PayLogInfo p0 = new PayLogInfo { IdentityNo = identity };
var payList = payBll.SearchLogById(p0);
if (payList.Count > 0)
{
DateTime dt = DateTime.Now; //当前时间
DateTime startWeek = dt.AddDays(1 - Convert.ToInt32(dt.DayOfWeek.ToString("d"))).Date;
//本周周一
var lst1 = payList.Where(i => i.CreateTime > startWeek).ToList();
var lst2 = lst1.Where(i => i.PayStatus == 1).ToList();
if (lst2.Count > 0)
{
throw new Exception("亲，您已经报过名啦");
}
}
#endregion
#region 根据code获取用户openid
string postData = "appid=" + appId + "&secret=" + appSecret + "&code=" + code +
"&grant_type=authorization_code";
string requestData = TenpayUtil.PostDataToUrl(TenpayUtil.getOauth2Access_tokenUrl(), postData);
LogHelper.WriteInfoLog("获取用户openid返回：" + requestData);
Authorization auth = JsonConvert.DeserializeObject<Authorization>(requestData);
//将json数据转化为对象类型并赋值给auth
#endregion
string timeStamp = TenpayUtil.GetTimestamp();
string nonceStr = TenpayUtil.GetNoncestr();
#region 通过统一支付接口获取JSAPI支付所需的prepay_id
UnifiedOrder order = new UnifiedOrder();
order.appid = appId;
order.attach = "vinson";
order.body = "报名费用";
order.device_info = telNo;
order.mch_id = mchId;
order.nonce_str = TenpayUtil.GetNoncestr();
order.notify_url = baseUrl + "WxCallback.aspx";
order.openid = auth.openid;
order.out_trade_no = "ck" + timeStamp;
order.trade_type = "JSAPI";
order.spbill_create_ip = context.Request.UserHostAddress;
order.total_fee = int.Parse(strState[0]);
//order.total_fee = 600;
string prepayId = tenpay.getPrepay_id(order, paySignKey);
#endregion
LogHelper.WriteInfoLog("prepay_id:" + prepayId);
#region 获取微信sign
SortedDictionary<string, string> sParams = new SortedDictionary<string, string>
{
{"appId", appId},
{"timeStamp", timeStamp},
{"nonceStr", nonceStr},
{"package", "prepay_id=" + prepayId},
{"signType", "MD5"}
};
var paySign = TenpayUtil.CreateSign(sParams, paySignKey);
#endregion
#endregion
#region 支付记录入库
Task tk = new Task(() =>
{
PayLogInfo paylog = new PayLogInfo
{
CustName = nm,
IdentityNo = identity,
OpenId = auth.openid,
PayMoney = order.total_fee / 100.0,
SchoolName = school,
Sex = int.Parse(sex),
TelNo = telNo,
TradeNo = order.out_trade_no,
PayStatus = 0,
CreateTime = DateTime.Now, //切记：mongogdb中显示的是GMT时间
Remark = "初始"
};
payBll.InsertLog(paylog);
});
tk.Start();
#endregion
LogHelper.WriteInfoLog("paySign:" + paySign);
//由pay.aspx页面发起微信支付请求
string url = baseUrl + "pay.aspx?showwxpaytitle=1&appId=" + appId + "&timeStamp=" + timeStamp +
"&nonceStr=" + nonceStr + "&prepay_id=" + prepayId + "&signType=MD5&paySign=" +
paySign +
"&OrderID=" + order.out_trade_no;
rsp = new { ErrCode = "0000", WxPayUrl = url };
break;
case "1": //支付成功：由pay.aspx调用
string orderId1 = context.Request["orderId"];
PayLogInfo p1 = new PayLogInfo { TradeNo = orderId1 };
var rst1 = payBll.SearchLogByOrderId(p1); //获取支付记录
Task t = new Task(() =>
{
rst1.PayStatus = 1;
rst1.Remark = "支付成功";
payBll.UpdaPayLogInfo(rst1); //更新支付状态
#region 发送报名成功消息
string openid = rst1.OpenId;
string content = string.Format(ConfigurationManager.AppSettings["SMsg"], rst1.CustName, rst1.SchoolName, rst1.IdentityNo, rst1.TelNo);//短信模板
string token = new TenpayUtil().GetAccessToken();
string data = "{";
data += "\"touser\" : \"" + openid + "\",";
data += "\"msgtype\" : \"text\",";
data += "\"text\" : {\"content\":\"" + content + "\"}";
data += "}";
HttpHelper.PostData(
"https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=" + token,
data);
#endregion
});
t.Start();
rsp =
new
{
ErrCode = "0000",
WxPayUrl =
baseUrl + "success.aspx?n=" + rst1.CustName + "&&o=" + rst1.TradeNo + "&&m=" +
rst1.PayMoney
};
break;
case "2": //支付失败：由pay.aspx调用
string orderId2 = context.Request["orderId"];
string errMsg = context.Request["ErrMsg"];
PayLogInfo p2 = new PayLogInfo { TradeNo = orderId2 };
var rst2 = payBll.SearchLogByOrderId(p2);
if (rst2.PayStatus == 1)
{
//用户支付成功后点击返回依然跳成功页面
rsp = new
{
ErrCode = "0000",
WxPayUrl =
baseUrl + "success.aspx?n=" + rst2.CustName + "&&o=" + rst2.TradeNo + "&&m=" +
rst2.PayMoney
};
}
else
{
rst2.PayStatus = -1;
rst2.Remark = "支付失败:" + errMsg;//数据库中保存详细错误信息
string showMsg = "支付失败";//默认显示
if (errMsg == "get_brand_wcpay_request:cancel")
showMsg = "取消支付";
payBll.UpdaPayLogInfo(rst2);
rsp = new { ErrCode = "0000", WxPayUrl = baseUrl + "fail.aspx?msg=" + showMsg };
}
break;
}
return JsonConvert.SerializeObject(rsp);
}
