public static string MakeSign(this WxPayParameter data, string paykey)
{
var str = data.PrepareSign();
str += "&key=" + paykey;
return(MakeSign(str, data.SignType, paykey));
}
public static string MakeSign(this WxPayParameter data)
{
var str = data.PrepareSign();
str += "&key=" + Constants.WxConfig.PayKey;
return(MakeSign(str, data.SignType));
}
public static string PrepareSign(this WxPayParameter data)
{
var ignoreProperties = new string[] { "paySign", "return_code", "return_msg" };
var @params = data.GetType().GetProperties().Select((ctx) =>
{
var elm = ctx.GetCustomAttributes <Newtonsoft.Json.JsonPropertyAttribute>().FirstOrDefault();
if (elm == null || ignoreProperties.Any(o => o.Equals(elm.PropertyName, StringComparison.OrdinalIgnoreCase)))
{
return(null);
}
var v = ctx.GetValue(data);
if (v == null)
{
return(null);
}
return(new
{
name = elm.PropertyName,
value = v
});
})
.Where(o => o != null)
.OrderBy(o => o.name);//必须对参数排序否则签名不正确
return(string.Join("&", @params.Select(o => string.Format("{0}={1}", o.name, o.value))));
}
/// <summary>
/// 拉起微信支付
/// </summary>
/// <returns></returns>
public ActionResult PullWxPay(WxPayParameter parameter)
{
parameter.PaySign = parameter.MakeSign();
return(View(parameter));
}