小编Pya*_*ung的帖子

web.xml是

<servlet>
    <servlet-name>index</servlet-name>
    <jsp-file>/index.jsp</jsp-file>
    <init-param>
        <param-name>heading</param-name>
        <param-value>This is heading</param-value>
    </init-param>
</servlet>
<servlet-mapping>
    <servlet-name>index</servlet-name>
    <url-pattern>/index</url-pattern>
</servlet-mapping>. 

如何从jsp页面获取init参数"heading"？