MD5加密java代码.

zhang_ly520

import java.security.MessageDigest;public class MD5 {public final static String MD5(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[j * 2];int k = 0;for (int i = 0; i < j; i++) {byte byte0 = md[i];str[k++] = hexDigits[byte0 >>> 4 & 0xf];str[k++] = hexDigits[byte0 & 0xf];}return new String(str);} catch (Exception e) {return null;}}public static void main(String[] args) {System.out.println(MD5.MD5("UID252-1209438873 "));System.out.println("1700a0e8932d888f565adae1bf3926c6");System.out.println(MD5.MD5("UID252-1209438873").equals("1700a0e8932d888f565adae1bf3926c6"));}}