What is the difference between ServletRequest and HttpServletRequest?
ServletRequest provides basic setter and getter methods for requesting a Servlet, but it doesn’t specify how to communicate. HttpServletRequest extends the Interface with getters for HTTP-communication (which is of course the most common way for communicating since Servlets mostly generate HTML).
What is servlet software architecture?
Servlet architecture comes under a java programming language used to create dynamic web applications. Servlets are used to perform client request and response tasks dynamically. Servlets can be used to perform tasks like, Control the flow of the application. Generate dynamic web content.
What are servlets in IP?
Java Servlets are programs that run on a Web or Application server and act as a middle layer between a requests coming from a Web browser or other HTTP client and databases or applications on the HTTP server. Servlets execute within the address space of a Web server.
What is httpservletrequest and it’s methods?
What is HttpServletRequest and It’s Methods? HttpServletRequest is an interface and extends the ServletRequest interface. By extending the ServletRequest this interface is able to allow request information for HTTP Servlets.
What is ext extends servletrequest?
extends ServletRequest Extends the ServletRequest interface to provide request information for HTTP servlets. The servlet container creates an HttpServletRequest object and passes it as an argument to the servlet’s service methods (doGet, doPost, etc).
What is the authentication type of a servlet?
All servlet containers support basic, form and client certificate authentication, and may additionally support digest authentication. If the servlet is not authenticated null is returned. Same as the value of the CGI variable AUTH_TYPE.
What happens if a collection is returned from a httpservletrequest?
Any changes to the returned Collection must not affect this HttpServletRequest . a (possibly empty) Collection of the Part components of this request java.io.IOException – if an I/O error occurred during the retrieval of the Part components of this request