public string MakeSign_SHA256()
{
//转url格式
string str = ToUrl();
//在string后加入API KEY
str += "&key=" + WxPayConfig.getKEY(city);//不加
//所有字符转为大写
return(SHA256(str));
}
/**
* @生成签名，详见签名生成算法
* @return 签名, sign字段不参加签名
*/
public string MakeSign()
{
//转url格式
string str = ToUrl();
//在string后加入API KEY
str += "&key=" + WxPayConfig.getKEY(city);//不加
if (this.IsSet("contract_display_account") && this.GetValue("contract_display_account").ToString() == "135****1726")
{
Log.Write("luo sign sourcestr:", str);
}
//MD5加密
var md5 = MD5.Create();
var bs = md5.ComputeHash(Encoding.UTF8.GetBytes(str));
var sb = new StringBuilder();
foreach (byte b in bs)
{
sb.Append(b.ToString("x2"));
}
//所有字符转为大写
return(sb.ToString().ToUpper());
}