支付寶的接口調用很不方便，剛做好一個封裝，實現了虛擬交易和實物交易。
解決方案中有三個項目以及ndoc生成的文檔，簡單的序列圖：commonalipay，封裝的支付寶接口。
testali,ASP.Net的測試項目
testcommonalipay，nunit的測試項目。
調用方法：
1、引入commonalipay.dll
2、實現支付寶服務接口的方法調用方式：
alipay ap = new alipay();
string key = "";/填寫自己的key
string partner = "";/填寫自己的partner
standardgoods bp = new standardgoods("trade_create_by_buyer", partner, key, "md5", "卡2", guid.newguid().tostring(), 2.551m, 1, "[email protected]", "[email protected]"
, "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);上面是通用的調用方式。
下面是只支持虛擬貨物的方式：
string key = "";/填寫自己的key
string partner = "";/填寫自己的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, "[email protected]", "[email protected]");
bp.notify_url = "http://203.86.79.185/ali/notify.ASPx";
ap.createdigitaltrade("https:/www.alipay.com/coOperate/gateway.do", bp, this);3、實現支付寶通知接口方法的調用（支持虛擬和實物）：
protected void page_load(object sender, eventargs e)
{
string key = "";/填寫自己的key
string partner = "";/填寫自己的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)
{
/ /加入自己的處理邏輯
log4net.log.error("wait buyer pay fire");
}
private void ap_waitsellersendgoods(object sender, notifyeventargs e)
{
/加入自己的處理邏輯
log4net.log.error("waitsellersendgoods fire");
}支付寶的交易狀態都被定義成了類似名稱的事件。
部分源代碼解析：
1、解析forms集合到notifyeventargs類，因為後面此類的數據要用來做md5sign，所以所有值類型，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
{
/轉型失敗會拋出異常
pi.setvalue(obj, v, null);
}
}
}
return (notifyeventargs)obj;
}
2、從類型中獲取排序後的參數
/**// <summary>
// 獲取排序後的參數
// </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、從sortedlist中產生參數
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 + "!amp;");
}
return param.tostring().trimend('!amp;');
}
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 + "!amp;");
}
return encodeparam.tostring().trimend('!amp;');
}
}
下載地址：http://www.cnblogs.com/files/bluewater/commonalipay.rar
