对于web.xml路由顺序的理解

假设有以下2个Serverlet
路由顺序应该为：数字标号
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<description>This is the description of my J2EE component</description>
<display-name>This is the display name of my J2EE component</display-name>
<servlet-name>HelloWorld</servlet-name>(3)
<servlet-class>com.HelloWorld</servlet-class>(4)
</servlet>
<servlet>
<description>This is the description of my J2EE component</description>
<display-name>This is the display name of my J2EE component</display-name>
<servlet-name>myServerlst</servlet-name>(3)
<servlet-class>com.myServerlst</servlet-class>(4)
</servlet>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>(2)
<url-pattern>/servlet/HelloWorld</url-pattern>(1)
</servlet-mapping>
<servlet-mapping>
<servlet-name>myServerlst</servlet-name>(2)
<url-pattern>/servlet/myServerlst</url-pattern>(1)
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>