C#调用支付宝接口案例
/// <summary>
/// 页面跳转同步通知页面
/// </summary>
/// <returns></returns>
public ActionResult PayResult()
{
SortedDictionary<string, string> sPara = GetRequestGet();
T_Trade objTrade = null;
if (sPara.Count > 0)//判断是否有带返回参数
{
Notify aliNotify = new Notify();
bool verifyResult = aliNotify.Verify(sPara, Request.QueryString["notify_id"], Request.QueryString["sign"]);
if (verifyResult)//验证成功
{
//商户订单号
string out_trade_no = Request.QueryString["out_trade_no"];
//支付宝交易号
string trade_no = Request.QueryString["trade_no"];
//交易状态
string trade_status = Request.QueryString["trade_status"];
//验证订单状态并处理业务逻辑
VerifyPay(out_trade_no, trade_no, trade_status);
var db = DBHelper.QueryDB();
string strSql = string.Format(@"select * from T_Trade where ID='{0}'", out_trade_no);
objTrade = db.Sql(strSql).QuerySingle<T_Trade>();
strSql = string.Format(@"select UserName from T_User where ID={0}", objTrade.UserID);
ViewBag.UserName = db.Sql(strSql).QuerySingle<string>();
}
}
return View(objTrade);
}
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/// <summary>
/// 服务器异步通知页面
/// </summary>
/// <returns></returns>
[AllowAnonymous]
public ActionResult PayNotify()
{
SortedDictionary<string, string> sPara = GetRequestPost();
if (sPara.Count > 0)//判断是否有带返回参数
{
Notify aliNotify = new Notify();
bool verifyResult = aliNotify.Verify(sPara, Request.Form["notify_id"], Request.Form["sign"]);
if (verifyResult)//验证成功
{
//商户订单号
string out_trade_no = Request.Form["out_trade_no"];
//支付宝交易号
string trade_no = Request.Form["trade_no"];
//交易状态
string trade_status = Request.Form["trade_status"];
//验证订单状态并处理业务逻辑
VerifyPay(out_trade_no, trade_no, trade_status);
Response.Write("success"); //请不要修改或删除
}
else//验证失败
{
Response.Write("fail");
}
}
else
{
Response.Write("无通知参数");
}
return View();
}
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public bool VerifyPay(string strOutTradeNo, string strTradeNo, string strTradeStatus)
{
bool bRes = false;
string strSql = string.Format(@"select * from T_Trade where ID='{0}'", strOutTradeNo);
T_Trade objTrade = DBHelper.QueryDB().Sql(strSql).QuerySingle<T_Trade>();
if (strTradeStatus == "TRADE_FINISHED" || strTradeStatus == "TRADE_SUCCESS")
{
if (objTrade.State != 2)
{
objTrade.TradeNo = strTradeNo;
objTrade.FinishTime = DateTime.Now;
objTrade.State = 2;
doPay(objTrade);
}
bRes = true;
}
else if (strTradeStatus == "TRADE_CLOSED")
{
if (objTrade.State != 1)
{
objTrade.TradeNo = strTradeNo;
objTrade.FinishTime = DateTime.Now;
objTrade.State = 1;
doPay(objTrade);
}
bRes = false;
}
return bRes;
}
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/// <summary>
/// 获取支付宝GET过来通知消息，并以“参数名=参数值”的形式组成数组
/// </summary>
/// <returns>request回来的信息组成的数组</returns>
public SortedDictionary<string, string> GetRequestGet()
{
int i = 0;
SortedDictionary<string, string> sArray = new SortedDictionary<string, string>();
NameValueCollection coll;
//Load Form variables into NameValueCollection variable.
coll = Request.QueryString;
// Get names of all forms into a string array.
String[] requestItem = coll.AllKeys;
for (i = 0; i < requestItem.Length; i++)
{
sArray.Add(requestItem[i], Request.QueryString[requestItem[i]]);
}
return sArray;
}
/// <summary>
/// 获取支付宝POST过来通知消息，并以“参数名=参数值”的形式组成数组
/// </summary>
/// <returns>request回来的信息组成的数组</returns>
public SortedDictionary<string, string> GetRequestPost()
{
int i = 0;
SortedDictionary<string, string> sArray = new SortedDictionary<string, string>();
NameValueCollection coll;
//Load Form variables into NameValueCollection variable.
coll = Request.Form;
// Get names of all forms into a string array.
String[] requestItem = coll.AllKeys;
for (i = 0; i < requestItem.Length; i++)
{
sArray.Add(requestItem[i], Request.Form[requestItem[i]]);
}
return sArray;
}
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/// <summary>
/// 提交支付请求到支付宝
/// </summary>
public ActionResult PostToAlipay(int id)
{
int uid = id;
var db = DBHelper.QueryDB();
string strSql = string.Format(@"select count(ID) from T_Trade where UserID={0} and State=2", uid);
//如果已经支付过则跳转到首页
if (db.Sql(strSql).QuerySingle<int>() > 0)
{
return Redirect("/home");
}
//查找没有支付的订单
strSql = string.Format(@"select * from T_Trade where UserID={0} and State=0", uid);
var objTrade = db.Sql(strSql).QuerySingle<T_Trade>();
//支付类型,1为商品购买
string payment_type = "1";
//服务器异步通知页面路径，需http://格式的完整路径，不能加?id=123这类自定义参数
string notify_url = "http://zc.jcxt99.com/pay/paynotify";
//string notify_url = "http://192.168.1.33:39371/pay/paynotify";
//页面跳转同步通知页面路径,需http://格式的完整路径，不能加?id=123这类自定义参数，不能写成http://localhost/
string return_url = "http://zc.jcxt99.com/pay/payresult";
//string return_url = "http://192.168.1.33:39371/pay/payresult";
//商户订单号,商户网站订单系统中唯一订单号，必填
string out_trade_no = objTrade == null ? Guid.NewGuid().ToString("N").Trim() : objTrade.ID;
//订单名称,必填
string subject = "会员资格";
//付款金额,必填
string total_fee = "200.00";
//string total_fee = "0.01";
string it_b_pay = "30m";
//防钓鱼时间戳,若要使用请调用类文件submit中的query_timestamp函数
//string anti_phishing_key = Com.Alipay.Submit.Query_timestamp();
//客户端的IP地址,非局域网的外网IP地址，如：221.0.0.1
//string exter_invoke_ip = "";
//把请求参数打包成数组
SortedDictionary<string, string> sParaTemp = new SortedDictionary<string, string>();
sParaTemp.Add("partner", Config.Partner);
sParaTemp.Add("seller_email", Config.Seller_email);
sParaTemp.Add("_input_charset", Config.Input_charset.ToLower());
sParaTemp.Add("service", "create_direct_pay_by_user");
sParaTemp.Add("payment_type", payment_type);
sParaTemp.Add("notify_url", notify_url);
sParaTemp.Add("return_url", return_url);
sParaTemp.Add("out_trade_no", out_trade_no);
sParaTemp.Add("subject", subject);
sParaTemp.Add("total_fee", total_fee);
sParaTemp.Add("it_b_pay", it_b_pay);
//sParaTemp.Add("body", body);
//sParaTemp.Add("show_url", show_url);
//sParaTemp.Add("anti_phishing_key", anti_phishing_key);
//sParaTemp.Add("exter_invoke_ip", exter_invoke_ip);
//建立请求
string sHtmlText = Submit.BuildRequest(sParaTemp, "get", "确认");
if (objTrade == null)
{
objTrade = new T_Trade();
objTrade.ID = out_trade_no;
objTrade.UserID = uid;
objTrade.TradeTime = DateTime.Now;
objTrade.Value = total_fee;
objTrade.TradeNo = "";
objTrade.FinishTime = DateTime.Now;
objTrade.State = 0;
if (db.Insert<T_Trade>("T_Trade", objTrade).AutoMap().Execute() > 0)
{
Response.Write(sHtmlText);
}
else
{
return Content("生成订单失败，请刷新页面重试！");
}
}
else
{
Response.Write(sHtmlText);
}
return null;
}