How can I avoid the String ".../servlet/..." in URL?

["Nguyen, Hong Chau" <Ho...@opendata.de>]

I have added following to my web.xml file:

<servlet>
	<servlet-name>ServletName</servlet-name>
	<servlet-class>ServletClass</servlet-class>
</servlet>
<servlet-mapping>
	<servlet-name>ServletName</servlet-name>
	<url-pattern>/ServletName</url-pattern>
</servlet-mapping>

It works, but I don't want to make it for every servlet in my web-app. 
Is there any other methods to do it at once for the whole servlets in my
context?

Thanks in advance