Prova con
codice:
<web-app eccetra,eccetra...>
    <context-param>
        <param-name>param1</param-name>
        <param-value>val1</param-value>
    </context-param>
    <context-param>
        <param-name>param2</param-name>
        <param-value>val2</param-value>
    </context-param>
    servlet e altro
</web-app>