Tips from Sony Thomas

In this blog, I would like to give a quick reference to the most commonly used DSP Tags.Note that in this DSP tag details : bean refers to a Nucleus path, component name, and property name param refers to a Page parameter value refers to a Static-value var refers to a EL variable id refers to a scripting variable ============================================================== 1.dsp:importbean     example: <dsp:importbean bean="/atg/dynamo/droplet/Switch"/> ============================================================== 2.dsp:page     usage: It encloses a JSP. The dsp:page invokes the JSP handler, which calls the servlet pipeline and generates HTTPServletRequest.    example:    <dsp:page> ..... </dsp:page> ============================================================== 3.dsp:include     usage: Embeds a page fragment in a JSP.     example:   <dsp:include src="/myPage/Result...

I am writing these quick reference blogs for those who wants to brushup the ideas of each topic. This one will lead you through the basic concepts of JAVA Servlets. How this quick reference guideline is different from the numerous other docs available ?  ,  please read on to get an idea : Servlet Lifecycle : The container will identify the servlet based on the URL Servlet class loading Servlet instantaition Call init method Create a servlet thread for the current request. Before calling service(), will create the request and response objects Call service method Service method will identify whether to call doGet or doPost and call it Call destroy method Different servlet objects : A sinlge servlet instance per JVM ( except for SingleTheadModel) A sinlge HttpSession per web application ( session activation and passivation) A sinlge ServletContext per JVM A sinlge ServletConfig per servlet A sinlge ServletRequest per servlet request Important Servlet rq...