摘引自:http://www.cnblogs.com/bluewater/archive/2006/10/16/530630.html
支付宝的接口调用很不方便,刚做好一个封装,实现了虚拟交易和实物交易。
解决方案中有三个项目以及NDoc生成的文档,简单的序列图:CommonAliPay,封装的支付宝接口。
TestAli,asp.net的测试项目
TestCommonAliPay,Nunit的测试项目。
源代码下载地址:
http://files.cnblogs.com/bluewater/CommonAliPay.rar
调用方法:
1、引入CommonAliPay.dll
2、实现支付宝服务接口的方法调用方式:
AliPay ap
=
new
AliPay();
string
key
=
""
;
//
填写自己的key
string
partner
=
""
;
//
填写自己的Partner
StandardGoods bp
=
new
StandardGoods(
"
trade_create_by_buyer
"
, partner, key,
"
MD5
"
,
"
卡2
"
, Guid.NewGuid().ToString(),
2.551m
,
1
,
"
hao_ding2000@yahoo.com.cn
"
,
"
hao_ding2000@yahoo.com.cn
"
,
"
EMS
"
,
25.00m
,
"
BUYER_PAY
"
,
"
1
"
);
bp.Notify_Url
=
"
http://203.86.79.185/ali/notify.aspx
"
;
ap.CreateStandardTrade(
"
https://www.alipay.com/cooperate/gateway.do
"
, bp,
this
);
上面是通用的调用方式。
下面是只支持虚拟货物的方式:
string
key
=
""
;
//
填写自己的key
string
partner
=
""
;
//
填写自己的Partner
AliPay ap
=
new
AliPay();
DigitalGoods bp
=
new
DigitalGoods(
"
create_digital_goods_trade_p
"
, partner, key,
"
MD5
"
,
"
卡2
"
, Guid.NewGuid().ToString(),
2.551m
,
1
,
"
hao_ding2000@yahoo.com.cn
"
,
"
hao_ding2000@yahoo.com.cn
"
);
bp.Notify_Url
=
"
http://203.86.79.185/ali/notify.aspx
"
;
ap.CreateDigitalTrade(
"
https://www.alipay.com/cooperate/gateway.do
"
, bp,
this
);
3、实现支付宝通知接口方法的调用(支持虚拟和实物):
protected
void
Page_Load(
object
sender, EventArgs e)

{
string key = "";//填写自己的key
string partner = "";//填写自己的Partner
AliPay ap = new AliPay();
string notifyid = Request.Form["notify_id"];
Verify v = new Verify("notify_verify", partner, notifyid);
ap.WaitSellerSendGoods+=new AliPay.ProcessNotifyEventHandler(ap_WaitSellerSendGoods);
ap.WaitBuyerPay += new AliPay.ProcessNotifyEventHandler(ap_WaitBuyerPay);
ap.ProcessNotify(this, "https://www.alipay.com/cooperate/gateway.do",key,v, "utf-8");
}

void
ap_WaitBuyerPay(
object
sender, NotifyEventArgs e)

{
// //加入自己的处理逻辑
Log4net.log.Error("wait buyer pay fire");
}

private
void
ap_WaitSellerSendGoods(
object
sender, NotifyEventArgs e)

{
//加入自己的处理逻辑
Log4net.log.Error("WaitSellerSendGoods fire");
}
支付宝的交易状态都被定义成了类似名称的事件。
部分源代码解析:
1、解析Forms集合到NotifyEventArgs类,因为后面此类的数据要用来做MD5Sign,所以所有值类型,不能存在初始值,如:int的0等。因此用Nullable范型。
private
NotifyEventArgs ParseNotify(NameValueCollection nv,
object
obj)

{
PropertyInfo[] propertyInfos = obj.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);

foreach (PropertyInfo pi in propertyInfos)

{
string v = nv.Get(pi.Name.ToLower());
if (v != null)

{
if (pi.PropertyType == typeof(string))

{

pi.SetValue(obj, v, null);

}
else if (pi.PropertyType == typeof(int?))

{
pi.SetValue(obj, int.Parse(v), null);
}
else if (pi.PropertyType == typeof(decimal?))

{

pi.SetValue(obj, decimal.Parse(v), null);
}
else if (pi.PropertyType == typeof(DateTime?))

{

pi.SetValue(obj, DateTime.Parse(v), null);
}
else if (pi.PropertyType == typeof(bool))

{

pi.SetValue(obj, bool.Parse(v), null);
}
else

{
//转型失败会抛出异常
pi.SetValue(obj, v, null);
}
}

}
return (NotifyEventArgs)obj;

}
2、从类型中获取排序后的参数
/**/
/// <summary>
/// 获取排序后的参数
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
private
SortedList
<
string
,
string
>
GetParam(
object
obj)

{
PropertyInfo[] propertyInfos = obj.GetType().GetProperties(BindingFlags.Public|BindingFlags.Instance);
SortedList<string, string> sortedList = new SortedList<string, string>(StringComparer.CurrentCultureIgnoreCase);
foreach (PropertyInfo pi in propertyInfos)

{

if (pi.GetValue(obj, null) != null)

{
if (pi.Name == "Sign" || pi.Name == "Sign_Type")

{
continue;
}
sortedList.Add(pi.Name.ToLower(), pi.GetValue(obj, null).ToString());
}
}
return sortedList;
}
3、从SortedList中产生参数
private
string
GetUrlParam(SortedList
<
string
,
string
>
sortedList,
bool
isEncode)

{
StringBuilder param = new StringBuilder();
StringBuilder encodeParam = new StringBuilder();
if (isEncode == false)

{

foreach (KeyValuePair<string, string> kvp in sortedList)

{
string t = string.Format("{0}={1}", kvp.Key, kvp.Value);
param.Append(t + "&");
}
return param.ToString().TrimEnd('&');
}
else

{
foreach (KeyValuePair<string, string> kvp in sortedList)

{
string et = string.Format("{0}={1}", HttpUtility.UrlEncode(kvp.Key), HttpUtility.UrlEncode(kvp.Value));
encodeParam.Append(et + "&");
}
return encodeParam.ToString().TrimEnd('&');
}
}
下载地址:
http://files.cnblogs.com/bluewater/CommonAliPay.rar
因为时间很紧,有些地方还不完善,大家提出意见,有时间我会修改的