MD5加密

 1 /**
 2      * MD5加密
 3      * @param strObj 待加密数据
 4      * @return
 5      */
 6     public static byte[] MD5(String strObj) {
 7         byte[] resultString = null;
 8         try {
 9             MessageDigest md = MessageDigest.getInstance("MD5");
10             resultString = md.digest(strObj.getBytes());
11         } catch (NoSuchAlgorithmException ex) {
12             ex.printStackTrace();
13         }
14         return resultString;
15     }