SpringBoot集成支付宝使用公钥证书碰到点问题

ERROR 373436 --- [nio-9004-exec-1] sdk.biz.err                              : ErrorScene^_^40002^_^isv.invalid-signature^_^null

    @GetMapping("test")

    public String test(AlipayTradeWapPayModel model1) throws AlipayApiException {

        CertAlipayRequest certAlipayRequest = alipayUtils.getCertAlipayRequest();

        AlipayClient client = new DefaultAlipayClient(certAlipayRequest);

        AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest();

        AlipayTradePrecreateModel alipayTradePrecreateModel=new AlipayTradePrecreateModel();

        alipayTradePrecreateModel.setOutTradeNo("10086113456");

        alipayTradePrecreateModel.setTotalAmount("88.88");

        alipayTradePrecreateModel.setSubject("testSubject");

        request.setBizModel(alipayTradePrecreateModel);

        AlipayTradePrecreateResponse response = client.execute(request);

        //设置业务参数

        String form=response.getQrCode();

        return form;

    }