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using
System;using
System.IO;using
System.Security.Cryptography;using
System.Text;namespace
Test{ public
class MD5Code { /// <summary> /// 获取文件的MD5码 /// </summary> /// <param name="fileName">传入的文件名（含路径及后缀名）</param> /// <returns></returns> public
string GetMD5HashFromFile(string
fileName) { try { FileStream file = new
FileStream(fileName, System.IO.FileMode.Open); MD5 md5 = new
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); } } }} |
原文：http://www.cnblogs.com/jiao28/p/3718970.html