Jsp&Servelet 学习笔记(5)

1.5创建一个部署描述文件

·为你的servlets注册并且创建一个url mapping
·注册并指定应用中的监听器和过滤器
·指定上下文中的初始化参数。
·配置错误页，和欢迎页
·配置seeion 超时
%26lt;?xml version="1.0" encoding="ISO-8859-1"?%26gt;
%26lt;!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-application_2_3.dtd"%26gt;
%26lt;web-app%26gt;
%26lt;display-name%26gt;Servlet 2.3 deployment descriptor%26lt;/display-name%26gt;
%26lt;filter%26gt;
%26lt;filter-name%26gt;RequestFilter%26lt;/filter-name%26gt;
%26lt;filter-class%26gt;com.mydev.RequestFilter%26lt;/filter-class%26gt;
%26lt;/filter%26gt;
%26lt;filter-mapping%26gt;
%26lt;filter-name%26gt;RequestFilter%26lt;/filter-name%26gt;
%26lt;url-pattern%26gt;/*%26lt;/url-pattern%26gt;
%26lt;/filter-mapping%26gt;
%26lt;listener%26gt;
%26lt;listener-class%26gt;com.mydev.ReqListener%26lt;/listener-class%26gt;
%26lt;/listener%26gt;
%26lt;servlet%26gt;
%26lt;servlet-name%26gt;MyServlet%26lt;/servlet-name%26gt;
%26lt;servlet-class%26gt;com.mydev.MyServlet%26lt;/servlet-class%26gt;
%26lt;/servlet%26gt;
%26lt;servlet-mapping%26gt;
%26lt;servlet-name%26gt; MyServlet %26lt;/servlet-name%26gt;
%26lt;url-pattern%26gt;/myservlet%26lt;/url-pattern%26gt;
%26lt;/servlet-mapping%26gt;
%26lt;session-config%26gt;
%26lt;session-timeout%26gt;15%26lt;/session-timeout%26gt;
%26lt;/session-config%26gt; %26lt;error-page%26gt;
%26lt;error-code%26gt;404%26lt;/error-code%26gt;
%26lt;location%26gt;/err404.jsp%26lt;/location%26gt;
%26lt;/error-page%26gt;
%26lt;/web-app%26gt;
http://blog.csdn.net/bruceleey/archive/2007/02/07/1503854.aspx