关于servletweb.xml配置时出现的问题

Question

web.xml文件如下：<?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>
    <servlet-name>HelloWorld</servlet-name>
    <servlet-class>servlet.HelloWorld</servlet-class>
      </servlet>
<servlet>
    <servlet-name>JDBCServlet</servlet-name>
    <servlet-class>servlet.JDBCServlet</servlet-class>
    <init-param>
<param-name>driver</param-name>
<param-value>com.microsoft.sqlserver.jdbc.SQLServerDriver</param-value>
</init-param>  <init-param>
<param-name>url</param-name>
<param-value>jdbc:sqlserver://localhost:1433;DatabaseName=dbname</param-value>
</init-param>  <init-param>
<param-name>username</param-name>
<param-value>cao</param-value>
</init-param>  <init-param>
<param-name>pwd</param-name>
<param-value>123456</param-value>
</init-param>
      </servlet>  <servlet-mapping>
    <servlet-name>HelloWorld</servlet-name>
    <url-pattern>/hello</url-pattern><servlet-name>JDBCServlet</servlet-name>
    <url-pattern>/jdbcservlet</url-pattern>
  </servlet-mapping>
 </web-app>
当我通过http://localhost:8080/web/hello想访问HelloWord时，结果出现的也是JDBCServlet，这可能是怎么回事呢；

Answer 1

http://localhost:8080/web/hello，web是你的包名吗？