一、加解密變數

 public static String AES_SALT = "0123456789abcdef";  // 自定義該值

二、加密

    /**
     * 加密
     *
     * @param data  要加密的資料
     * @param key  加鹽，例：key = AES_SALT
     * @return
     * @throws Exception
     */
    public static String enAes(String data, String key) throws Exception {
        Cipher cipher = Cipher.getInstance("AES");
        SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
        cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);
        byte[] encryptedBytes = cipher.doFinal(data.getBytes());
        return new BASE64Encoder().encode(encryptedBytes);
    }
 

三、解密

   /**
     * 解密
     *
     * @param data  要解密的資料
     * @param key  加鹽，例：key = AES_SALT
     * @return
     * @throws Exception
     */
    public static String deAes(String data, String key) throws Exception {
        Cipher cipher = Cipher.getInstance("AES");
        SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
        cipher.init(Cipher.DECRYPT_MODE, secretKeySpec);
        byte[] cipherTextBytes = new BASE64Decoder().decodeBuffer(data);
        byte[] decValue = cipher.doFinal(cipherTextBytes);
        return new String(decValue);
    }