web.xml中的配置為
<servlet-mapping>
<servlet-name>StudentOperateAction</servlet-name>
<url-pattern>/student/StudentOperateAction</url-pattern>
</servlet-mapping>

超連接連接到一個servlet<a href="/stucent/StudentOperateAction?action=view">查看</a>

<url-pattern>/student/StudentOperateAction</url-pattern>
意思是設定文件的后綴名
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>