在idea中创建maven工程，搭建spring MVC框架，完成和servlet相似的操作_maven导入了springmvc还需要servlet吗-优快云博客

本文链接：https://blog.youkuaiyun.com/jiandapao/article/details/120597286

1.创建一个maven项目，配置在前文有
2.配置spingmvc（因为是maven所以不用导入jar包）
3.新建一个项目，spingmvc-02-hell,添加web资源的支持,确定导入了SpingMvc依赖配置全局配置文件web.xml文件，注册DispatcherServlet
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">


<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>

<load-on-startup>1</load-on-startup>
</servlet>



<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

</web-app>

4.写Spingmvc的配置文件spingmvc-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">

</beans>

5.添加处理映射器

<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
6.添加处理适配器

<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>
7.添加视图解析器

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="InternalResourceViewResolver">

<property name="prefix" value="/WEB-INF/jsp/"/>

<property name="suffix" value=".jsp"/>
</bean>

8创建接口
1.要么实现接口的方法委托模型处理完毕，要么返回一个ModelAndView装数据，封视图

创建一个包class的java文件

创建接口实现servlet的功能，代码如下
package com.kuang.controller;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
//注意：这里我们先导入Controller接口
public class HelloController implements Controller {
publc ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
//ModelAndView 模型和视图
ModelAndView mv = new ModelAndView()
//封装对象，放在ModelAndView中。Model
mv.addObject("msg","HelloSpringMVC!");
//封装要跳转的视图，放在ModelAndView中
mv.setViewName("hello"); //: /WEB-INF/jsp/hello.jsp
return mv;
}
}