java代码

public static String md5(String str) {        try {            MessageDigest md = MessageDigest.getInstance("MD5");            md.update(str.getBytes());            byte b[] = md.digest();            int i;            StringBuffer buf = new StringBuffer("");            for (int offset = 0; offset < b.length; offset++) {                i = b[offset];                if (i < 0)                    i += 256;                if (i < 16)                    buf.append("0");                buf.append(Integer.toHexString(i));            }            str = buf.toString();        } catch (Exception e) {            e.printStackTrace();        }        return str;    }

 

c#代码

public static string md5(string str)        {            try            {                MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();                byte[] bytValue, bytHash;                bytValue = System.Text.Encoding.UTF8.GetBytes(str);                bytHash = md5.ComputeHash(bytValue);                md5.Clear();                string sTemp = "";                for (int i = 0; i < bytHash.Length; i++)                {                    sTemp += bytHash[i].ToString("X").PadLeft(2, '0');                }                str = sTemp.ToLower();            }            catch(Exception e)            {                Console.WriteLine(e.Message);            }            return str;        }