Servlets are Java classes which service HTTP requests and implement the javax. servlet. Servlet interface. Web application developers typically write servlets that extend javax. HttpServlet, an abstract class that implements the Servlet interface and is specially designed to handle HTTP requests.

A servlet is a Java programming language class that is used to extend the capabilities of servers that host applications accessed by means of a request-response programming model. Although servlets can respond to any type of request, they are commonly used to extend the applications hosted by web servers.

Create Instance of Servlet When the servlet class is loaded, the servlet container creates an instance of the servlet. Typically, only a single isntance of the servlet is created, and concurrent requests to the servlet are executed on the same servlet instance.

After the web container loads and instantiates the servlet class and before it delivers requests from clients, the web container initializes the servlet.

A servlet life cycle can be defined as the entire process from its creation till the destruction. The servlet is initialized by calling the init() method. The servlet calls service() method to process a client’s request. The servlet is terminated by calling the destroy() method.

What exception is thrown when Servlet initialization fails ? (a) IOException (b) ServletException (c) RemoteException ANS: (b) 2.

servlet. This interface is for developing servlets. A servlet is a body of Java code that is loaded into and runs inside a servlet engine, such as a web server. It receives and responds to requests from clients.

init method

(b) When the servlet throws the exception, it will automatically be caught by the calling JSP page. (c) The servlet needs to forward the request to the specific error page URL. The exception is passed along as an attribute named “javax.

MVC stands for Model View and Controller. It is a design pattern that separates the business logic, presentation logic and data. Controller acts as an interface between View and Model. Controller intercepts all the incoming requests. View represents the presentaion i.e. UI(User Interface).

There are two ways to include the result of another page:

1. By include directive.
2. By include action.

2 Answers. HTML files are static resources that are served as is, without any kind of interpretation, by the web container. This will include your jsp. You cannot include a JSP to a HTML page.

JavaServer Pages (JSP) is a Java standard technology that enables you to write dynamic, data-driven pages for your Java web applications. JSP is built on top of the Java Servlet specification. The two technologies typically work together, especially in older Java web applications.

Java programming language

JSPs are translated into servlets at runtime; each JSP’s servlet is cached and re-used until the original JSP is modified. At run time, the JSP code is interpreted by the JSP compiler, which parses out all the special features in the JSP code and translates them to Java code.