但是我这边加密解密都可以正常显示，不知道这个是啥问题

public static String rsaEncryptOAEP(String message, X509Certificate certificate)
        throws IllegalBlockSizeException, IOException {
    try {
        Cipher cipher = Cipher.getInstance("RSA/ECB/OAEPWithSHA-1AndMGF1Padding");
        cipher.init(Cipher.ENCRYPT_MODE, certificate.getPublicKey());

        byte[] data = message.getBytes("utf-8");
        byte[] cipherdata = cipher.doFinal(data);
        return Base64.getEncoder().encodeToString(cipherdata);
    } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
        throw new RuntimeException("当前Java环境不支持RSA v1.5/OAEP", e);
    } catch (InvalidKeyException e) {
        throw new IllegalArgumentException("无效的证书", e);
    } catch (IllegalBlockSizeException | BadPaddingException e) {
        throw new IllegalBlockSizeException("加密原串的长度不能超过214字节");
    }
}

public static String rsaDecryptOAEP(String ciphertext, PrivateKey privateKey)
        throws BadPaddingException, IOException {
    try {
        Cipher cipher = Cipher.getInstance("RSA/ECB/OAEPWithSHA-1AndMGF1Padding");
        cipher.init(Cipher.DECRYPT_MODE, privateKey);

        byte[] data = Base64.getDecoder().decode(ciphertext);
        return new String(cipher.doFinal(data), "utf-8");
    } catch (NoSuchPaddingException | NoSuchAlgorithmException e) {
        throw new RuntimeException("当前Java环境不支持RSA v1.5/OAEP", e);
    } catch (InvalidKeyException e) {
        throw new IllegalArgumentException("无效的私钥", e);
    } catch (BadPaddingException | IllegalBlockSizeException e) {
        throw new BadPaddingException("解密失败");
    }
}