SSM Application (iv)--SPRINGMVC Getting Started

The concept of SPRINGMVC

is a web-layer framework, essentially a huge servlet;

All requests are sent to Springmvc, the servlet: @WebServlet ("/");

All the corresponding are SPRINGMVC issued;

SPRINGMVC distribute the request to the corresponding Java class;

SPRINGMVC Container: Manages many instances of a Java class, distributing the requested object;

Web: A problem for handling jumps and data transfer;

Springmvc How to use

First, you need to introduce the jar package required by SPRINGMVC: http://repo.spring.io/release/org/springframework/spring/

Configure SPRINGMVC This servlet, which is configured as a servlet in Web. xml;

SPRINGMVC is a servlet that is used to receive *.action requests;

Configure the SPRINGMVC core configuration file;

SPRINGMVC's core configuration file is essentially a spring configuration file, and an instance of the bean needs to be found;

Tell Dispatcherservlet where to use the core configuration file;

　　　　

What the core configuration file needs to configure:

Request Line:

SPRINGMVC itself is a spring concept: managing the relationship between beans and beans;

Springmvc this servlet needs to find common Java classes (beans)

Response Line:

View counterpart: Springmvc gives a logical view--needs to be converted to a physical view

There are a number of responses returned, looking for physical views (like key-value pairs) in a logical view

View Resolver:

The class that realizes the control layer of SPRINGMVC management: controller;

is the normal Java class for SPRINGMVC distribution requests

With packet scanning, the Hellocontroller class becomes a bean instance that SPRINGMVC can use directly

With view parsing, the return value result is parsed as:/result.jsp;

PS: Due to the limited ability of the author, such as wrong, please understand;

SSM Application (iv)--SPRINGMVC Getting Started