MD5加密代码

来源：互联网发布：dijstra属于什么算法编辑：程序博客网时间：2024/05/16 05:19

package com.wfc.servlet;import java.security.*;      import java.security.spec.*;           public class MD5_test {       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) {        // MD5_Test aa = new MD5_Test();        System.out.print(MD5_test.MD5("123123"));       }   */ }

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