<load-on-startup>

<load-on-startup>1</load-on-startup> 服务器在启动的时候就加载这个servlet

例：

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