Spring mvc有哪些组件， Spring mvc运行流程

A阳光码农

已于 2022-07-07 15:17:47 修改

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文章标签： java spring servlet

于 2022-06-22 10:17:19 首次发布

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本文链接：https://blog.youkuaiyun.com/weixin_52014130/article/details/125404260

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本文详细介绍了SpringMVC的五大核心组件：DispatcherServlet、HandlerMapping、Controller、ModelAndView和ViewResolver，以及它们在处理请求过程中的作用。SpringMVC的工作流程从DispatcherServlet开始，通过HandlerMapping找到处理器Controller，再到业务处理和ModelAndView的构建，最后由ViewResolver解析并呈现视图给客户端。

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Spring mvc有哪些组件
   1.前置控制器 DispatcherServlet
   2.映射控制器 HandlerMapping
   3.处理器    Controller
   4.模型和试图 ModelAndView
   5.视图解析器 ViewResolver

   Spring mvc运行流程
   1.Spring mvc 先将请求发送给前置控制器DispatcherServlet.
   2.前置控制器DispatcherServlet查询一个或多个映射控制器HandlerMapping,找到处理请求的处理器Controller.
   3.前置控制器DispatcherServlet再把请求提交到对应的处理器Controller.
   4.处理器Controller进行业务逻辑处理后，会返回一个模型和视图ModelAndView.
   5.Dispathcher 查询一个或多个视图解析器ViewResolver ，找到ModelAndView对象指定的视图对象。
   6.视图对象负责渲染返回给客户端。

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