Spring MVC中Filter Servlet Interceptor 执行顺序

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　　<servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

此时初始化时，会寻找一个在应用程序WEB-INF目录下的配置文件，命名规则为:servletName-servlet.xml

可以利用init-param元素更改默认的文件名和文件路径

　　<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:spring/springmvc-context.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>

接下来解读下servlet的配置文件中的内容（拦截器、advice？、RequestMappingHandlerAdapter、viewResolver etc)

<mvc:annotation-driven />

<context:component-scan base-package="com.dianping.lunar.mvc.controller" />