Call a servlet on the url pattern /_/

[Sumit Aggarwal]

Need to call a servlet on the url pattern /_/
what should i write in the web.xml

<filter-mapping>
		<filter-name>SEOURLFilter</filter-name>
		<url-pattern>/_/</url-pattern>
	</filter-mapping>

This isn't working

[Bear Bibeault]

The space is not a valid mapping character.

[abani patra]

Yes,
I am also agree that blank space is not allowed in browser url .