Java后端实现MD5加密的方法

//传入任何需要加密的文本进行加密
public static String getMd5(String string) {
  try {
 MessageDigest md = MessageDigest.getInstance("MD5");
 md.update(string.getBytes);
 byte hash = md.digest;
 StringBuffer sb = new StringBuffer;
 int i = 0;
 for (int offset = 0; offset < hash.length; offset++) {
 i = hash[offset];
 if (i < 0) {
 i += 256;
 }
 if (i < 16) {
 sb.append("0");
 }
 sb.append(Integer.toHexString(i));
 }

 return sb.toString;
  }
  catch (NoSuchAlgorithmException e) {
 throw new RuntimeException(e);
  }
 }

String PASSWORD_ = String.valueOf((int) (Math.random * 1000000));

 if (empService.updateEmpPassword(EMP_ID_, BaseUtils.getMd5(PASSWORD_), operator) == 0) {
 throw new RuntimeException("随机密码生成失败！");
 }
 String xele = "<SendMessage><AM_Name>" + EMP_CODE_ + "</AM_Name><PhoneNum></PhoneNum><UserId></UserId><MessageTxt>您的公文管理系统新密码是:" + PASSWORD_ + "</MessageTxt><SystemName>公文管理系统</SystemName><Type>即时通</Type><Access></Access><Email></Email><IsBack></IsBack><IsEncrypt></IsEncrypt><ISPriority></ISPriority><Ohter1></Ohter1><Ohter2></Ohter2></SendMessage><br />";

instanceMsgService.AMToMessIFCheck(xele, null, operator);