/// <summary>
/// 根据本地文件地址得到文件md5
/// </summary>
/// <param name="localFilePath">文件绝对地址</param>
/// <param name="isUpper">是否转大写,默认：true</param>
/// <returns></returns>
public static string GetMd5(string localFilePath, bool isUpper = true)
{
//检查文件是否存在，如果文件存在则进行计算，否则返回空值
if (File.Exists(localFilePath))
{
using (FileStream fileStream =
new FileStream(localFilePath, FileMode.Open, FileAccess.Read))
{
return(SecurityCommon.GetMd5Hash(fileStream, isUpper));
}
}
return(String.Empty);
}
/// <summary>
/// MD5加密(32位)
/// </summary>
/// <param name="str">待加密字符串</param>
/// <param name="encoding">编码方式</param>
/// <param name="isUpper">是否转大写</param>
/// <returns></returns>
public static string GetMd5Hash(this string str, Encoding encoding = null, bool isUpper = true)
{
return(SecurityCommon.GetMd5Hash(str, encoding, isUpper));
}