Call the
Servlets service() Method
For HttpServlet subclasses, one of the doGet() , doPost() etc. methods are typically called. As long as the servlet is active in the servlet container, the service() method can be called. Thus, this step in the life cycle can be executed multiple times.
How many times destroy method called in servlet?
The destroy() method is called only
once at
the end of the life cycle of a servlet. Q 12 – Which of the following is true about destroy() method of servlet?
Which method is only called once in servlet life cycle?
destroy() method
:
The destroy() method is called only once. It is called at the end of the life cycle of the servlet.
How many methods are there in servlet?
There are
5 methods
in Servlet interface. The init, service and destroy are the life cycle methods of servlet. These are invoked by the web container. initializes the servlet.
How many times service () method will be invoked?
The web container calls the
service method each time when request
for the servlet is received. If servlet is not initialized, it follows the first three steps as described above then calls the service method. If servlet is initialized, it calls the service method. Notice that servlet is initialized only once.
What is servlet life cycle?
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 is destroy () method?
destroy() method is called by
the servlet container to indicate to a servlet that the servlet is being taken out of service
. This method is only called once all threads within the servlet’s service method have exited or after a timeout period has passed.
How are servlets invoked?
You can invoke a servlet by
directly addressing it from a Web page with a URL
or by calling it programmatically from an already running servlet.
What is JSP life cycle?
A JSP life cycle is defined as
the process from its creation till the destruction
. This is similar to a servlet life cycle with an additional step which is required to compile a JSP into servlet.
What is applet life cycle?
Applet life cycle
defined as how the object created, started, stopped and destroyed during the entire execution of the application is said to
applet life cycle
. … These methods are invoked by the browser to execute.
Applet
works on the client side so, less processing time.
Is servlet a framework?
The Servlet API is
the foundation of almost all Java Web View technologies
. Servlet provides the basic mechanism for writing Java classes for web applications. Servlets can respond to HTTP requests, create cookies and maintain sessions.
What is difference between GET and POST?
Both GET and POST method is used to transfer data from client to server in HTTP protocol but Main difference between POST and GET method is that
GET carries request parameter appended in URL string while POST carries request parameter in message body
which makes it more secure way of transferring data from client to …
What is called servlet container?
A web container
(also known as a servlet container; and compare “webcontainer”) is the component of a web server that interacts with Jakarta Servlets. … A web container handles requests to servlets, Jakarta Server Pages (JSP) files, and other types of files that include server-side code.
Which method is called multiple times in JSP life cycle?
In this, the request and response object of the JSP Page is handled using the
_jspservice() method
. The container invokes the _jspservice() method to handle the request raised by the JSP page. This method handles the GET, POST request just like the servlet service() method. It can be called multiple times.
What JSP means?
Java Server Pages
(JSP) is a programming tool on the application server side that supports platform-independent and dynamic methods to construct Web-based applications. … HTML tags and JSP tags are present in Java Server Pages.
What is the difference between servlet and JSP?
Servlets are faster as compared to JSP, as they have a short response time.
JSP is slower than Servlets
, as the first step in the JSP lifecycle is the conversion of JSP to Java code and then the compilation of the code. Servlets are Java-based codes. JSP are HTML-based codes.
