Introduction to Filter API
Introduction to Filter API Filters are compontents that you can use and configure to perform some filtering tasks. Filter is used for pre-processing of requests and post-processing...
ServletRequestEvent and ServletRequestListener
ServletRequestEvent and ServletRequestListener ServletRequestEvent class gives notification about lifecycle events for a ServletRequest. The source of the event is the ServletContext of the web application. ServletRequestListener receives the notifications generated...
HttpSessionEvent and HttpSessionListener
HttpSessionEvent and HttpSessionListener HttpSessionEvent class gives notifications for changes to sessions within a web application. HttpSessionListener receives notifications of changes to the list of active sessions in a web...
What is ServletRequestAttributeEvent?
What is ServletRequestAttributeEvent? ServletRequestAttributeEvent class gives notifications about changes to the attributes of ServletRequest in an application. This class listens to the notifications and performs some important tasks whenever...
ServletContextEvent and ServletContextListener?
ServletContextEvent and ServletContextListener? ServletContextEvent class gives notifications about changes to the servlet context of a web application. ServletContextListener receives the notifications about changes to the servlet context and perform...
Using Hidden Form Field for Session Management
Using Hidden Form Field for Session Management Hidden form field can also be used to store session information for a particular client. In case of hidden...
Using URL Rewriting for Session Management
Using URL Rewriting for Session Management If the client has disabled cookies in the browser then session management using cookie wont work. In that case URL Rewriting can...
Using Cookies for Session Management
Using Cookies for Session Management Cookies are small pieces of information that are sent in response from the web server to the client. Cookies are the simplest technique used...
Managing Session in Servlets
Managing Session in Servlets We all know that HTTP is a stateless protocol. All requests and responses are independent. But sometimes you need to keep track of client's...
Introduction to Attribute
Introduction to Attribute An attribute is an object that is used to share information in a web app. Attribute allows Servlets to share information among themselves. Attributes can...
Introduction to ServletContext Interface
Introduction to ServletContext Interface For every Web application a ServletContext object is created by the web container. ServletContext object is used to get configuration information from Deployment Descriptor(web.xml) which will be...