web.xml中servlet配置及其含义

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
 3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
 5          version="4.0">
 6   
 7     <servlet>
 8         <!--自定义，一般为类名-->
 9         <servlet-name>servletDemo1</servlet-name>
10         <!--一定是package + .类名-->
11         <servlet-class>day08_servlet.ServletDemo1</servlet-class>
12     </servlet>
13     <!--给Servlet提供（映射)一个可供客户端访问的URI-->
14     <servlet-mapping>
15         <!--和servlet中的name必须相同-->
16         <servlet-name>servletDemo1</servlet-name>
17         <!-- servlet的映射路径 -->
18         <url-pattern>/servlet</url-pattern>
19     </servlet-mapping>
20     
21 </web-app>