upater

 I found this method is marked as "Deprecated". so I searched in the internet, but I found the api document just says this method is deprecated，in “https://springfox.github.io/springfox/javadoc/current/springfox/documentation/[RequestHandler](https://springfox.github.io/springfox/javadoc/current/springfox/documentation/RequestHandler.html#declaringClass()).html#declaringClass()”， based on...