[color=FF0000]这是 jsp--servlet！
你在web.xml配置了没有？
像：

 <servlet>
        <servlet-name>ConnectDatabase</servlet-name>
        <servlet-class>tw.com.javaworld.CH14.ConnectDatabase</servlet-class>
    </servlet>
    <servlet-mapping>
      <servlet-name>ConnectDatabase</servlet-name>
      <url-pattern>/CH14/ConnectDatabase</url-pattern>
    </servlet-mapping>
[/color]