<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>xxx</servlet-name>
<servlet-class>cn.itcast.web.servlet.Aservlet</servlet-class>
<init-param>
<param-name>name1</param-name>
<param-value>v1</param-value>
</init-param>
<init-param>
<param-name>name2</param-name>
<param-value>v2</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>xxx</servlet-name>
<url-pattern>/Aservlet</url-pattern>
</servlet-mapping>
</web-app>
这是什么格式？XML文件吗？为什么每个标签中间要用-来分开？比如<servlet-name>xxx</servlet-name> 这个配置文件的格式必须要加-吗？
