/// <summary>
/// 生成签名
/// </summary>
/// <param name="parms">参数列表</param>
/// <param name="appsecret">密钥</param>
/// <returns></returns>
public string CreateSign(Dictionary <string, string> param, string appsecret)
{
//抽取需要签名的参数
Dictionary <string, string> signDic = new Dictionary <string, string>();
foreach (var m in param)
{
if (!string.IsNullOrWhiteSpace(m.Key) && !m.Key.StartsWith("_"))//以下划线开头的参数和sign不参签名
{
signDic.Add(m.Key, m.Value);
}
}
signDic.Add(appsecretKey, appsecret);
StringBuilder signStr = new StringBuilder();
//按照asc码升序排列
foreach (var m in signDic.OrderBy(m => m.Key, StringComparer.Ordinal))
{
signStr.Append(m.Key).Append(splitCharOne).Append(m.Value).Append(splitCharTwo);
}
//去除最后一个多余的分隔符
if (signStr.Length > 0)
{
signStr.Remove(signStr.Length - splitCharTwo.Length, splitCharTwo.Length);
}
string mySign = MD5Helper.En32MD5(signStr.ToString());
return(mySign);
}
