java - org/springframework/web/servlet/ModelAndView 类和 org/springframework/web/portlet/ModelAndView 之间的区别

Question

这个问题已经有答案了:

what is the difference in org.springframework.web.servlet.ModelAndView vs org.springframework.web.portlet.ModelAndView (1 个回答)

已关闭 8 年前。

我刚刚回答了以下围绕此发布问题的问题。

spring mvc InternalResourceViewResolver doesnt get prefix

有人可以告诉我们这些类别之间的区别吗

org/springframework/web/servlet/ModelAndView和org/springframework/web/portlet/ModelAndView

我看到两者的 API 文档几乎相似

http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/servlet/ModelAndView.html

和

http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/portlet/ModelAndView.html

两者都有构造函数

ModelAndView(String viewName)
Convenient constructor when there is no model data to expose.

但后者无法解决 View 问题？

Answer 1

忽略这两个是针对两个完全不同的环境，区别在于 org.springframework.web.servlet.ModelAndView 是 supported handler method return type :

• A ModelAndView object, with the model implicitly enriched with command objects and the results of @ModelAttribute annotated reference data accessor methods.

这意味着 Spring 有一个 HandlerMethodReturnValueHandler实现 ( ModelAndViewMethodReturnValueHandler ) 将接收 ModelAndView 类型的返回值并对其进行处理。

它没有默认注册的org.springframework.web.portlet.ModelAndView的实现。

更多:

• Spring MVC Neither BindingResult nor plain target
• How does HandlerMethodReturnValueHandler work?