知识点回顾

springmvc支持的返回值

• ModelAndView

• Model

• View

• ResponseEntity

• ResponseBodyEmitter

• StreamingResponseBody

• HttpHeaders

• Callable

• DeferredResult

• ListenableFuture

• CompletionStage

• CompletionStage

• WebAsyncTasj

• 有@ModelAttribute

• @ResponseBody注解--->RequestResponseBodyMethodProcessor

雷丰阳2021版SpringBoot2零基础入门springboot全套完整版（spring boot2）哔哩哔哩bilibili