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Servlet container calls servlet init() method before handling client requests. It is called just one times after servlet is created. By default it does nothing. You can override this method and it is also good for performing one-time activities.
19 paź 2021 · Initializing a Servlet: After the Servlet is instantiated successfully, the Servlet container initializes the instantiated Servlet object. The container initializes the Servlet object by invoking the Servlet.init (ServletConfig) method which accepts ServletConfig object reference as parameter.
8 sty 2024 · In this example, we’ve shown how to define servlet initialization parameters by using annotations, and how to access them with the getInitParameter() method.
• The advantages of servlets over competing technologies • The basic servlet structure and life cycle • Servlet initialization parameters • Access to form data • HTTP 1.1 request headers, response headers, and status codes • The servlet equivalent of the standard CGI variables • Cookies in servlets • Session tracking
The init() method simply creates or loads some data that will be used throughout the life of the servlet. The init method definition looks like this − public void init() throws ServletException { // Initialization code...
A Servlet is an interface defined in a javax.servlet package. It declares three essential methods for the life cycle of a servlet, init(), service() and destroy(). When the servlet is called for the first time, the Servlet Container loads the servlet class and calls its init() method.
13 sty 2022 · To get started with Servlets, let’s first start with a simple Servlet application i.e LifeCycle application, that will demonstrate the implementation of the init(), service() and destroy() methods.
