how a servlet is instantiated, whether the container calls
init() or by calling any other method? please somebody reply..
- 6 Answers
- 20860 Views
- Siemens, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / ashutosh
Servlet is instantiated by servlet container by calling
method Class.forName(Servlet class name).newInstance();
First of all Servlet Container looks into the
deployment descriptor(web.xml) .It looks the definition of
Servlet.And Than instantiate it by calling
Class.forName(Servlet class name).newInstance();
| Is This Answer Correct ? | 19 Yes | 5 No |
Answer / suraj kumar
The servlet is controlled by the container in which the servlet has been deployed. When a request is made to a servlet, its mapping is searched in web.xml. If mapping found then the container performs the following steps.
a.If an instance of the servlet does not exist, the Web container loads the servlet class.
b.Creates an instance of the servlet class.
c.Initializes the servlet instance by calling the init method
| Is This Answer Correct ? | 8 Yes | 0 No |
Answer / ravikiran.chd
no beofre the init() method call the servlet instantiation
happens while the container calls the no-arg constructor of
the servlet
| Is This Answer Correct ? | 3 Yes | 2 No |
Answer / nishidh soni
Servlet is initialized by two ways...
1)By initializing the constructor:-but in the initial version of JDK 1.0 constructor can not be initialized for the dynamic page loading so that init() method for the servlet comes into the picture.
2)By invoking the init() method:-This init() method is invoked by the servlet container at it is invoked once per servlet and it uses the ServletConfig as a object for the initialized parameter.and the it is like
init(ServletConfig config)
{
.....
}
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / aruna
servlet is instantiated after the .class file is loaded on
the memory.Then, the instance will be initialized by calling
init()
| Is This Answer Correct ? | 4 Yes | 6 No |
Answer / harikumar
if we deploy our web root dir in webapps , then we call url
from the browser.
then after loading , it calls the init() method first.
There r two tow init() methods(first init() & second init
()).
| Is This Answer Correct ? | 2 Yes | 9 No |
i need connection pooling code.....from harpreet.your@gmail.com
Explain session tracking and its importance?
Explain web application directory arrangement?
What is use of parseQueryString?
What is context switching?
Why is init() method is used in servlets?
Difference between jakarta tomcat and apache Tomcat?
Why is servlet used?
What is Difference between JavaBeans and taglib directives?
how the server will know its the same jsp page?
How are filters?
How the servlet is loaded?
Core Java 
