关于IOS易宝充值接口AES/ECB/PKCS5Padding算法加密问题

试试看：

private static final String SECRET_AES = "AES";
    private static final String SECRET_PATTERN_ECB = "AES/ECB/PKCS5Padding";
    private static final String CODE = "UTF-8";
    private static Cipher cipher;
    private static SecretKeySpec secretKey;

    /***
     * AES加密
     * 
     * @param value
     * @param key
     * @return
     */
    public static byte[] _encode(String value, String key) {
        try {
            byte[] bs = key.getBytes(CODE);
            secretKey = new SecretKeySpec(bs, SECRET_AES);
            cipher = Cipher.getInstance(SECRET_PATTERN_ECB);
            cipher.init(Cipher.ENCRYPT_MODE, secretKey);
            return cipher.doFinal(value.getBytes(CODE));
        } catch (Exception e) {
            return null;
        }
    }

    /***
     * AES解密
     * 
     * @param value
     * @param key
     * @return
     */
    public static String _decode(byte[] value, String key) {
        try {
            byte[] bs = key.getBytes(CODE);
            secretKey = new SecretKeySpec(bs, SECRET_AES);
            cipher = Cipher.getInstance(SECRET_PATTERN_ECB);
            cipher.init(Cipher.DECRYPT_MODE, secretKey);
            byte[] decrypt = cipher.doFinal(value);
            return new String(decrypt);
        } catch (Exception e) {
            return null;
        }
    }