显示MyWeb目录下所有文件

/**在 conf/web.xml*/

    <servlet>        <servlet-name>default</servlet-name>        <servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class>        <init-param>            <param-name>debug</param-name>            <param-value>0</param-value>        </init-param>        <init-param>            <param-name>listings</param-name>            <param-value>true</param-value>        </init-param>        <load-on-startup>1</load-on-startup>    </servlet>

/**listings的value改为true*/

/**取消 默认页*/

/**产品上线后一定要设置成false*/