struts中并没有指定post还是get呀？为什么客户端只能用post，用get的话就没有对应的action？

Question

    <package name ="default" extends ="struts-default" namespace="/"> 
        <action name="onlineService"  class="onlineServiceAction" method="execute">
        </action>
        <action name="blackService"  class="blackServiceAction" method="execute">
        </action>
    </package>