public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
PayWeiXin model = new PayWeiXin();
PayForWeiXinHelp PayHelp = new PayForWeiXinHelp();
string result = string.Empty;
//传入OpenId
string openId = context.Request.Form["openId"].ToString();
//传入红包金额(单位分)
string amount = context.Request.Form["amount"] == null ? "" : context.Request.Form["amount"].ToString();
//接叐收红包的用户 用户在wxappid下的openid
model.re_openid = openId;//"oFIYdszuDXVqVCtwZ-yIcbIS262k";
//付款金额，单位分
model.total_amount = int.Parse(amount);
//最小红包金额，单位分
model.min_value = int.Parse(amount);
//最大红包金额，单位分
model.max_value = int.Parse(amount);
//调用方法
string postData = PayHelp.DoDataForPayWeiXin(model);
try
{
result = PayHelp.PayForWeiXin(postData);
}
catch (Exception ex)
{
//写日志
}
XmlDocument doc = new XmlDocument();
doc.LoadXml(result);
string jsonResult = JsonConvert.SerializeXmlNode(doc);
context.Response.ContentType = "application/json";
context.Response.Write(jsonResult);
context.Response.End();
}
/// <summary>
/// 调用微信支付接口前处理数据，包括sign验证等
/// </summary>
/// <param name="payForWeiXin"></param>
/// <returns></returns>
public string DoDataForPayWeiXin(PayWeiXin payForWeiXin)
{
#region 处理nonce_str随机字符串，不长于 32 位（本程序生成长度为16位的）
string str = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
payForWeiXin.nonce_str = RandomStr(str, 16);
#endregion
#region 商户信息从config文件中读取
//商户支付密钥key
string key = ConfigurationManager.AppSettings["key"].ToString();
//商户号
payForWeiXin.mch_id = ConfigurationManager.AppSettings["mch_id"].ToString();
//商户 appid
payForWeiXin.wxappid = ConfigurationManager.AppSettings["wxappid"].ToString();
//提供方名称
payForWeiXin.nick_name = ConfigurationManager.AppSettings["nick_name"].ToString();
payForWeiXin.act_id = "act_id";
//红包収送者名称
payForWeiXin.send_name = ConfigurationManager.AppSettings["send_name"].ToString();
//红包収放总人数
payForWeiXin.total_num = int.Parse(ConfigurationManager.AppSettings["total_num"].ToString());
//红包祝福诧
payForWeiXin.wishing = ConfigurationManager.AppSettings["wishing"].ToString();
//活劢名称
payForWeiXin.act_name = ConfigurationManager.AppSettings["act_name"].ToString();
//备注信息
payForWeiXin.remark = ConfigurationManager.AppSettings["remark"].ToString();
//商户logo的url
payForWeiXin.logo_imgurl = ConfigurationManager.AppSettings["logo_imgurl"].ToString();
//分享文案
payForWeiXin.share_content = ConfigurationManager.AppSettings["share_content"].ToString();
//分享链接
payForWeiXin.share_url = ConfigurationManager.AppSettings["share_url"].ToString();
//分享的图片url
payForWeiXin.share_imgurl = ConfigurationManager.AppSettings["share_imgurl"].ToString();
//调用接口的机器 Ip 地址
payForWeiXin.client_ip = ConfigurationManager.AppSettings["client_ip"].ToString();
#endregion
#region 订单信息
//生成订单号组成： mch_id+yyyymmdd+10 位一天内不能重复的数字
//生成10位不重复的数字
string num = "0123456789";
string randomNum = RandomStr(num, 10);
payForWeiXin.mch_billno = payForWeiXin.mch_billno + System.DateTime.Now.ToString("yyyyMMdd") + randomNum;
#endregion
string postData = @"<xml>
<mch_billno>{0}</mch_billno>
<mch_id>{1}</mch_id>
<wxappid>{2}</wxappid>
<nick_name>{3}</nick_name>
<send_name>{4}</send_name>
<re_openid>{5}</re_openid>
<total_amount>{6}</total_amount>
<min_value>{7}</min_value>
<max_value>{8}</max_value>
<total_num>{9}</total_num>
<wishing>{10}</wishing>
<client_ip>{11}</client_ip>
<act_name>{12}</act_name>
<act_id>{13}</act_id>
<remark>{14}</remark>
<nonce_str>{15}</nonce_str>";
postData = string.Format(postData,
payForWeiXin.mch_billno,
payForWeiXin.mch_id,
payForWeiXin.wxappid,
payForWeiXin.nick_name,
payForWeiXin.send_name,
payForWeiXin.re_openid,
payForWeiXin.total_amount,
payForWeiXin.min_value,
payForWeiXin.max_value,
payForWeiXin.total_num,
payForWeiXin.wishing,
payForWeiXin.client_ip,
payForWeiXin.act_name,
payForWeiXin.act_id,
payForWeiXin.remark,
payForWeiXin.nonce_str
);
//原始传入参数
string[] signTemp = { "mch_billno=" + payForWeiXin.mch_billno, "mch_id=" + payForWeiXin.mch_id, "wxappid=" + payForWeiXin.wxappid, "nick_name=" + payForWeiXin.nick_name, "send_name=" + payForWeiXin.send_name, "re_openid=" + payForWeiXin.re_openid, "total_amount=" + payForWeiXin.total_amount, "min_value=" + payForWeiXin.min_value, "max_value=" + payForWeiXin.max_value, "total_num=" + payForWeiXin.total_num, "wishing=" + payForWeiXin.wishing, "client_ip=" + payForWeiXin.client_ip, "act_name=" + payForWeiXin.act_name, "act_id=" + payForWeiXin.act_id, "remark=" + payForWeiXin.remark, "nonce_str=" + payForWeiXin.nonce_str };
List <string> signList = signTemp.ToList();
//拼接原始字符串
if (!string.IsNullOrEmpty(payForWeiXin.logo_imgurl))
{
postData += "<logo_imgurl>{0}</logo_imgurl> ";
postData = string.Format(postData, payForWeiXin.logo_imgurl);
signList.Add("logo_imgurl=" + payForWeiXin.logo_imgurl);
}
if (!string.IsNullOrEmpty(payForWeiXin.share_content))
{
postData += "<share_content>{0}</share_content> ";
postData = string.Format(postData, payForWeiXin.share_content);
signList.Add("share_content=" + payForWeiXin.share_content);
}
if (!string.IsNullOrEmpty(payForWeiXin.share_url))
{
postData += "<share_url>{0}</share_url> ";
postData = string.Format(postData, payForWeiXin.share_url);
signList.Add("share_url=" + payForWeiXin.share_url);
}
if (!string.IsNullOrEmpty(payForWeiXin.share_imgurl))
{
postData += "<share_imgurl>{0}</share_imgurl> ";
postData = string.Format(postData, payForWeiXin.share_imgurl);
signList.Add("share_imgurl=" + payForWeiXin.share_imgurl);
}
#region 处理支付签名
//对signList按照ASCII码从小到大的顺序排序
signList.Sort();
string signOld = string.Empty;
string payForWeiXinOld = string.Empty;
int i = 0;
foreach (string temp in signList)
{
signOld += temp + "&";
i++;
}
signOld = signOld.Substring(0, signOld.Length - 1);
//拼接Key
signOld += "&key=" + key;
//处理支付签名
payForWeiXin.sign = Encrypt(signOld).ToUpper();
#endregion
postData += "<sign>{0}</sign></xml>";
postData = string.Format(postData, payForWeiXin.sign);
return(postData);
}
