Spring+SpringMVC获取javabean

  <!-- spring容器监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

        //获取Spring的根容器
        this.rootWac = ContextLoader.getCurrentWebApplicationContext();
        //获取ServletContext
        this.servletContext = rootWac.getServletContext();
        //获取SpringMVC的子容器
        this.mvcApplicationContext = WebApplicationContextUtils.getWebApplicationContext(servletContext, "org.springframework.web.servlet.FrameworkServlet.CONTEXT.mvc-dispatcher");
        //获取子容器中bean，则使用子容器对象来获取，
        this.viewResolver = this.mvcApplicationContext.getBean(FreeMarkerViewResolver.class);