Java实现的MD5加密类
import java.security.*; public class MD5{ public final static String getMD5(String s){ char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'}; try { byte[] strTemp = s.getBytes(); MessageDigest mdTemp = MessageDigest.getInstance("MD5"); mdTemp.update(strTemp); byte[] md = mdTemp.digest(); int j = md.length; char str[] = new char; int k = 0; for (int i = 0; i < j; i++) { byte byte0 = md; str = hexDigits; str = hexDigits; } return new String(str); }catch (Exception e){ return null; } } public static void main(String[] args){ System.out.print(MD5.getMD5("abcd")); } }
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