MD5加密方法

import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import org.apache.log4j.Logger; import sun.misc.BASE64Encoder; public class CodeUtils {     private static Logger logger = LogManager.getLogger(LogManager.LOG_KEY_APP);     private static MessageDigest MD5 = null;              static {         try {             MD5 = MessageDigest.getInstance("MD5");         } catch (NoSuchAlgorithmException ex) {             logger.debug(ex);         }     }              public static String encode(String value) {         String result = "";         if (value == null) {             return result;         }         BASE64Encoder baseEncoder = new BASE64Encoder();         try {             result = baseEncoder.encode(MD5.digest(value.getBytes("utf-8")));         } catch (Exception ex) {         }         return result;     } }