使用基于@ResponseBody注释的MappingJackson2JsonView支持在Spring REST中返回JSON响应有什么好处？ [英] What are the advantages of returning JSON response in Spring REST Using MappingJackson2JsonView Support over @ResponseBody Annotation?

问题描述

我正在浏览教程并发现我们可以在Spring REST中返回JSON响应使用 MappingJackson2JsonView 支持 @ResponseBody 注释。

I am going through this tutorial and found we can return JSON response in Spring REST Using MappingJackson2JsonView Support over @ResponseBody Annotation.

显然使用 @ResponseBody 注释非常简单，易于实现，使用 MappingJackson2JsonView 支持位复杂。这是我个人的意见，但我想知道在Spring REST中使用MappingJackson2JsonView支持在@ResponseBody Annotation上返回JSON响应的优点是什么？如果有的话？有人可以解释一下他们之间哪个更好，为什么？ 何时使用MappingJackson2JsonView支持以及何时使用@ResponseBody Annotation 在Spring REST中返回JSON响应？

Apparently Using @ResponseBody Annotation is very simple and easy to implement where as Using MappingJackson2JsonView Support bit complex. Any way this is my personal opinion, but I want to know what are the advantages of returning JSON response in Spring REST Using MappingJackson2JsonView Support over @ResponseBody Annotation, if there is any? Can someone explain me which one is better between them and why? When to use MappingJackson2JsonView Support and when to use @ResponseBody Annotation for returning JSON response in Spring REST?

推荐答案

<我认为，MappingJackson2JsonView是一个很好的实现。

I think, MappingJackson2JsonView is good implementation.

但是ResponseBody有一些优点。
在@ResponseBody的帮助下，您可以返回对象而不是属性
例如

But there is some advantages of ResponseBody. With Help of @ResponseBody you can return object not as property For example

class Student extends ResponseDTO{
   publci String name = "John"
}
...
@ResponseBody ResponseDTO  getStudentInfo(){
  return new Student();
}

结果将是
{
name： John
}

Result will be { "name":"John" }

使用MappingJackson2JsonView，你必须在属性中返回对象，如

With MappingJackson2JsonView you must return object in property like

{
  "student": {
               "name":"John"
             }
}

使用@ResponseBody你还可以返回内联对象延伸的结果

with @ResponseBody you can also return result with inline object extending

 @ResponseBody getStudentInfo(){
  return new Object(){
     public String name="John"
 };
}

但这不是很好的实施

一些好的实现MappingJackson2JsonView很好。但是对于更多功能，如返回对象或返回ResponseDto，ResponseBody更有用

Some for good implementation MappingJackson2JsonView is good. But for more functionality like as return object or return ResponseDto, ResponseBody is more usefull

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