<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>
    <!--注册Servlet-->
   <servlet>
       <servlet-name>/hello</servlet-name>
       <servlet-class>com.yan.Servlet.HelloServlet</servlet-class>
   </servlet>
   <!--Servlet的请求路径-->
    <servlet-mapping>
        <servlet-name>/hello</servlet-name>
        <url-pattern>/hello</url-pattern>
    </servlet-mapping>

</web-app>

访问目录：http://localhost:8088/s1/hello