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

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-application_2_3.dtd">

<web-app>

<display-name>Servlet 2.3 deployment descriptor</display-name>

<filter>

<filter-name>RequestFilter</filter-name>

<filter-class>com.mydev.RequestFilter</filter-class>

</filter>

<filter-mapping>

<filter-name>RequestFilter</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

<listener>

<listener-class>com.mydev.ReqListener</listener-class>

</listener>

<servlet>

<servlet-name>MyServlet</servlet-name>

<servlet-class>com.mydev.MyServlet</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name> MyServlet </servlet-name>

<url-pattern>/myservlet</url-pattern>

</servlet-mapping>

<session-config>

<session-timeout>15</session-timeout>

</session-config> <error-page>

<error-code>404</error-code>

<location>/err404.jsp</location>

</error-page>

</web-app>

http://blog.csdn.net/bruceleey/archive/2007/02/07/1503854.aspx