java 加解密

加解密，需要的jar包：jce.jar,liferay.jar
DESKeySpec dks = new DESKeySpec(bytes[]);
SecretKeyFactory keyFac = SecretKeyFactory.getInstance("DES");
SecretKey key = keyFac.generateSecret(dks);
String result1 = Encryptor.encrypt(key,str);//加密str
String result2 = Encryptor.decrypt(key,str);//解密str