What is a servlet and explain its life cycle?

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

What are the phases in the servlet lifecycle?

The Life Cycle of a Servlet involves creating an instance of the Servlet, associating the Servlet with initialization information, dispatching request to the servlet instance and finally destroying the servlet instance.

What is the life cycle of servlet Mcq?

MCQs: Which default exception handler that performs the following tasks: 1: Prints out exception description. 2: Prints the stack trace (Hierarchy of methods where the exception occurred). 3: Causes the program to terminate.

What are the advantages of servlet explain its life cycle?

– Servlets are the programs that run under web server environment. – A copy of servlet class can handle numerous request threads. – In servlets, JVM stays running and handles each request using a light weight thread.

Why do we use servlet?

The primary purpose of the Servlet specification is to define a robust mechanism for sending content to a client as defined by the Client/Server model. Servlets are most popularly used for generating dynamic content on the Web and have native support for HTTP.

What is the first phase of servlet life cycle?

Initialization is the first phase of the Servlet life cycle and represents the creation and initialization of resources the Servlet may need to service requests.

What are the features of servlets?

Features of Servlet

• Portable: As I mentioned above that Servlet uses Java as a programming language, Since java is platform independent, the same holds true for servlets.
• Efficient and scalable: Once a servlet is deployed and loaded on a web server, it can instantly start fulfilling request of clients.
• Robust:

What is servlet and its features?

Servlet technology is used to create a web application (resides at server side and generates a dynamic web page). Servlet technology is robust and scalable because of java language. Before Servlet, CGI (Common Gateway Interface) scripting language was common as a server-side programming language.

Is the first phase of servlet life cycle?

Which is the life cycle procedure?

The stages that a physical process or a management system goes through as it proceeds from birth to death. These stages include conception, design, deployment, acquisition, operation, maintenance, decommissioning, and disposal.

How many method are there in servlet life cycle?

three life cycle methods
There are mainly three life cycle methods of a servlet, which we can describe as: init() service() destroy()

Which is the first phase of servlet life cycle?

Initialization
Initialization is the first phase of the Servlet life cycle and represents the creation and initialization of resources the Servlet may need to service requests.

What is servlet and JSP?

Java™ servlets and Java server pages (JSPs) are Java programs that run on a Java application server and extend the capabilities of the Web server. Java servlets are Java classes that are designed to respond to HTTP requests in the context of a Web application.

What are the applications of servlet?

Applications of Servlet

• Read the explicit data sent by the clients (browsers).
• Read the implicit HTTP request data sent by the clients (browsers).
• Process the data and generate the results.
• Send the explicit data (i.e., the document) to the clients (browsers).
• Send the implicit HTTP response to the clients (browsers).