Advance Java. Configuring and Getting Servlet Init Parameters per servlet

Transcription

1 Advance Java Understanding Servlets What are Servlet Components? Web Application Architecture Two tier, three tier and N-tier Arch. Client and Server side Components and their relation Introduction to CGI and its limitations Introducing Java Servlet API for Dynamic Web Apps Servlet Lifecycle and Web Container Servlet Container and its Roles Converting a normal java class into Servlet implementing Servlet interface Understanding Life Cycle of a Servlet Servlet Initialization using init() method Request Processing using Service() method Destroying Servlet using Destroy() Servlet Configuration using Web.xml ServletConfig and its usage How Web Container read information from Web.xml How to declare configuration file for an application Declaration of <servlet> and <servlet-mapping> tags Understanding ServletRequest and ServletResponse object Exploring methods of Request and Response Explaining all methods of ServletRequest and ServletResponse Interfaces How to use ServletRequest and ServletResponse Object to process a Request Exploring ServletResponse Object and its usage Using Servlet API interfaces and classes Servlet Interface GenericServlet abstract class Using methods provided by GenericServlet A sample demo application tracking client information Configuring and Getting Servlet Init Parameters per servlet Extending the previous application by using Servlet Init Parameters Configuring intiparams using <init-param></init-param> rags

2 Accessing initial prameters using ServletConfig.getInitParameter() method A demo application connecting to MySQL servlet Configuring and Getting Context Init Parameters per application Configuring Context Parameters using <context-param></context-param> tag Using Context.getInitParameter() Difference between ServletConfig.getInitParameter() and ServletContext.getInitParameter() Request Processing and Handling HttpRequest Extending HttpServlet HttpServlet and its specifications Explaining additional methods in HttpServlet HttpServletRequest and HttpServletResponse ojects Methods supported by HttpRequest and HttpResponse HttpServletRequest and HttpServletResponse objects Methods and their use in HttpServlet Servicing HttpServletRequest using doget() and dopost() methods Abstracting Service() method in doget() and dopost() Difference in doget() and dopost() Sending GET and processing request Sending POST and processing request Formatting a request parameter and getting on server side GET request format supported by HTTP protocol How to send parameters with GET request Formatting a QueryString Processing Request parameter using request.getparameter() Processing Request Parameters on Server side Using request.getparameter() Dispatching Request to other servlet RequestDispatcher Object Dispatching request by Include() method Dispatching request by forward() method Setting Request attributes and getting requestattributes Setting Request attribute Getting request attribute on other resource Using request.getattribute() and request.setattribute() Redirecting request to some static resource Using request.sendredirect() method

3 Difference between RequestDispatcher and SendRedirect() When to use which method Session Management What is Session? Why to track Session? Various Session Handling Technics Session Tracking: URL Rewriting Session Tracking: Cookies Session Tracking: Hidden Forms HttpSession Object and its working Session Tracking: HttpSession Using encodeurl () method Advantages and Disadvantages of Various Session Management Technics ServletContext Attributes and their uses Difference between Parameters and attributes Complete Demo Application describing Session Management Servlet Filters What and Why Filters? Explaining Filter Interception Design Pattern Exploring Servlet Filter API The Filter Interface The FilterChain Interface The FilterConfig Interface Working with Filters and Servlets Filtering Requests and Responses using Demo Application Servlvet Listeners Event Programming and its need in Web Application Types of Listeners Listener Interface ServletContextListener Interface ServletContextAttributeListener Interface HttpSessionListener Interface HttpSessionAttributeListener Interface HttpSessionBindingListener Interface ServletRequestListener Interface ServletRequestAttribute Interface Using all together in Application Introduction to JSP Understanding JSP

4 Why JSP was invented? Advantages of JSP over Servlets JSP Architecture and Life Cycle JSP Modal 1 and Modal 2 Arch Creating simple JSP pages JSP Tags and Implicit Object Various JSP Tags Type of Scripting Tags Scriptlets Tags Declarative Tags Directive Tags Expression Tags Working with Implicit Objects Working with JavaBeans and JSP Action Tags What is JavaBean? Advantages of JavaBeans JSP Action Tags Working with Action Tags to access and set JavaBeans Forward Action Tag UseBean Action Tag setproperty and getproperty Action Tags Param Action Tag Declaring JavaBean from JSP Action tag User Defined JSP Tags Need of Custom Tags How to define JSP Custom Tag? JSP Expression Language Syntax of Expression Language Types of EL Expressions Tag attribute Types EL operators Implicit EL Objects Functions with EL Expressions JSP Standard Tag Library (JSTL) Types of JSTS s Working with JSTL Core Tags Working with JSTL SQL Tags Working with JSTL Formatting Tags

5 Working with JSTL XML Tags Implementing JSTL in Application Introduction to Design Patterns Developing Web Applications using Apache Struts Framework