web.xml配置  dispatcherservlet物件,並新增初始化引數springMVC的xml配置檔案

   <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.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>