mapping servlet and jsp by web.xml

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app
 xmlns:javaee="http://java.sun.com/xml/ns/javaee"
 xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <servlet-mapping>
        <servlet-name>HomePage</servlet-name>
        <url-pattern>/HomePage</url-pattern>
    </servlet-mapping>
</web-app>