Servlets
Session Tracking HTIP is a stateless protocol, which means that each request is independent of the -previous one, However, in some applications, it is necessary to save state information so that information can be collected from several.interactions between a browser...
Servlets
Using Cookies Now, let’s develop a servlet that illustrates how to use cookies. The servlet is invoked when a form on a Web page is submitted. The example contains three files, as summarized hei e: File AddCookie.htm AddCookieScrvlet.java GetCookiesServlet.java...
Servlets
Handling HTTP POST Requests This section develops a servlet that handles an HTIP POST request. The scrvlet is invoked when a form on a Web page is submitted. The example contains two files: ColorPost.htm defines a Web page and ColorPos Servlet java defines a...
Servlets
Handling ‘HTTP Requests and .Responses The Hup servtet class provides specialized methods that handle the various types of requests. 1\ servlet developer typically overrides one of these methods. These methods arc doDeka( ) duct( ). do Options( ), do Post(),...
Servlets
The Http Session BindingEvent Class The Http Session Binding Event class extends Event. It is generated when a listener is bound to or unbound from a value in an Secessionist object. · Http Session Event has the following constructor: Http Session Binding Event (Http...
Servlets
That HttpServlet Class The Http Servlet class extends Generic it is commonly used when lopil servlets that receive and process HTTP’ flush The methods of the cLass are summarized here Method void doDe!ete(HttpServletRcquest req, HttpServletResponse...
