拦截器中出现异常时如何自定义返回值问题

[laimingzhang]

当调用接口失败时，方法的返回值通常是null，例如方法：
@request(url = "${0}",
interceptor = {VerifyInvoiceInterceptor.class},
type = "post",
contentType = "application/json",
dataType = "json")
VerifyInvoiceResponse verifyInvoice(String url, @dataobject VerifyInvoiceDTO verifyInvoiceDTO);
如果方法调用异常，返回值verifyInvoiceResponse是null，是否可通过拦截器重新自定义返回值，使得verifyInvoiceResponse 不为null