MD5加密

编程技术  /  houtizong 发布于 3年前   74

package com.config;import java.io.UnsupportedEncodingException;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;import sun.misc.BASE64Encoder;public class MD5 {/** * MD5加密操作1 * @param str * @return */public static String getMD5Str1(String str){        String value=null;    if(str==null) return "";MessageDigest md5 = null;try {md5 = MessageDigest.getInstance("MD5");BASE64Encoder baseEncoder = new BASE64Encoder();value = baseEncoder.encode(md5.digest(str.getBytes("utf-8")));} catch(NoSuchAlgorithmException e) {e.printStackTrace();} catch(UnsupportedEncodingException e){e.printStackTrace();}return value;}  /** * MD5加密操作  2 * @param str * @return */    public static String getMD5Str2(String str) {              MessageDigest messageDigest = null;              try {                  messageDigest = MessageDigest.getInstance("MD5");                  messageDigest.reset();                  messageDigest.update(str.getBytes("UTF-8"));              } catch (NoSuchAlgorithmException e) {                  e.printStackTrace();            } catch (UnsupportedEncodingException e) {                  e.printStackTrace();              }                      byte[] byteArray = messageDigest.digest();              StringBuffer md5StrBuff = new StringBuffer();              for(int i = 0; i < byteArray.length; i++) {                              if(Integer.toHexString(0xFF & byteArray[i]).length() == 1)                      md5StrBuff.append("0").append(Integer.toHexString(0xFF & byteArray[i]));                  else                      md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));              }              return md5StrBuff.toString();          }  public static void main(String[] args){System.out.println(getMD5Str1("111111"));System.out.println(getMD5Str2("111111"));}}