MD5是一种常见的加密方式,相对比较稳定,同时也是校验文件的一种方式,HZ下面分享net中获取文件md5值的方法, 已经整理,直接使用即可
private static string GetMD5HashFromFile(string fileName) { try { FileStream file = new FileStream(fileName, FileMode.Open); System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider(); byte[] retVal = md5.ComputeHash(file); file.Close(); StringBuilder sb = new StringBuilder(); for (int i = 0; i < retVal.Length; i++) { sb.Append(retVal[i].ToString(“x2″)); } return sb.ToString(); } catch (Exception ex) { throw new Exception(“GetMD5HashFromFile() fail,error:” + ex.Message); } }