Overview of How Filters Work This section provides an overview of the following topics: How the Servlet Container Invokes Filters Typical Filter Actions How the Servlet Container Invokes Filters Figure 5-1 shows, on the left, a scenario in which no f…

这篇文章把Asp.net MVC的filter介绍的很详细,值得收藏. http://www.dotnet-tricks.com/Tutorial/mvc/b11a280114-Understanding-ASP.NET-MVC-Filters-and-Attributes.html…

If we define Servlet filters in web.xml, then the order of execution of the filters will be the same as the order in which they are defined in the web.xml. But, if we define the filters using annotation, what is the order of execution of filters and…

Struts2中如何添加Servlet 以前Java开发都是Servlet的天下,如今是各种框架横行,遇到一个需要将以前的Servlet加入到现有的Struts2的环境中. Google之后发现Stack Overflow真是个好东西,解决如下,只是简单配置下. I assume you want to know how to use a servlet in conjunction with Struts2 when you have mapped everything to the Stru…

其实原文是一个英文文章“Two Servlet Filters Every Web Application Should Have” 文章说了2个Filter: GzipFilter ChcheFilter 为了防止资源失效.在csdn上上传了包含文章提供的包含写好的可用的这两个Filter的包,下载链接: http://download.csdn.net/source/1383943 当然你也可以在英文原文最后一页找到这个包的原下载地址.…

Servlet Life Cycle http://docs.oracle.com/javaee/5/tutorial/doc/bnafi.html Servlet Filters and Event Listeners http://docs.oracle.com/cd/B14099_19/web.1012/b14017/filters.htm 在web.xml 中出现的先后顺序 ① listener ② filter ③ servlet 原因是: 监听器有六种监听,可以监听上下文属性变化,上…

一直以来,我们使用SpringMVC的时候习惯性都配置一个ContextLoaderListener,虽然曾经有过疑问,配置的这个监听器和Servlet究竟做了什么,但也没深究. 要说任何Web框架都离不开Servlet,它是一个容器,也是一种规范,你要和Web搞上关系,无非就是那么几种,监听器.过滤器和Servlet,最终都是为了切进ServletContext. SpringMVC是基于Servlet的,直接配个Servlet不就行了嘛,但我没有真正这么做过.上次群里有个人说根本不需要配置监…

     接触Σ-Δ调制的时候发现国内有关的资料比较匮乏,因为缺乏了解还有一些人把其中的原理吹得神乎其神难以理解.其实Σ-Δ调制的原理是很简单.逻辑上很自然的,可以定性理解成传统ADC/DAC量化的是模拟量绝对值,而Σ-Δ调制量化的是(单比特的)变化量(Δ),然后将其累积(Σ).这里找到一篇比较浅显易懂的对-Δ调制进行定量分析的文章,想试着翻译一下.如有错漏或不妥之处还请指点. 理解Σ-Δ调制 特定的公式可以帮助设计者量化Σ-Δ调制带来的各种提升.          Σ-Δ 模数转换器(ADCs…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

Spring's AOP Framework Let's begin by looking at Spring's own AOP framework - a proxy-based framework that works in pure Java. You can use it in any application server and all the required classes are included in the Spring distribution. Although man…