web.xml file in servlet 3.0

Tomcat 7 은 Servlet 3.0을 사용하는 데 Servlet 3.0 에서는 web.xml 대신

@WebServlet("/hello")
public class HelloServlet extends HttpServlet {}

 

이 문장은 Servlet 2.5에서

<servlet>
    <servlet-name>helloServlet</servlet-name>
    <servlet-class>com.example.HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>helloServlet</servlet-name>
    <url-pattern>/hello</url-pattern>
</servlet-mapping>

과 동일하다.