The RequestDispatcher.include (req, resp) is used to add a jsp to the
Servlet.
SOURCE : www.referjava.com
Thursday, February 1, 2007
what is the need of super.init (config) in servlets
This will call the super class init method to initialize the object by config.
b. Basically super.init () method should be used whenever u is overriding the init method.... else i don’t think there is any necessity.
SOURCE : www.referjava.com
b. Basically super.init () method should be used whenever u is overriding the init method.... else i don’t think there is any necessity.
SOURCE : www.referjava.com
importance of deployment descriptor in servlet?
. Deployment descriptor file contain the resources available to the bean) what type of transactions that bean is using, name of home interface etc
b. The deployment descriptor is not confined to servlets. It belongs to the application. The deployment descriptor basically tell the container where to look out for the resources, which patterns to follow, how are the resources mapped etc
SOURCE : www.referjava.com
b. The deployment descriptor is not confined to servlets. It belongs to the application. The deployment descriptor basically tell the container where to look out for the resources, which patterns to follow, how are the resources mapped etc
SOURCE : www.referjava.com
.When you have action=get?
By default, every request sent is by GET. Only when we explicitly mention that the method is post, is the request sent by post. click meOn clicking the above link, the data is send by get method. Here, when we submit the form, the data is sent via the post method
SOURCE : www.referjava.com
SOURCE : www.referjava.com
. Can an init (ServletConfig config) method be overriden in servlets?
This cannot be overriden.
b. The init () method of servlet can be overridden. Remember the init () method is overloaded in the GenericServlet class. But the difference lies in which init method are u calling. If you override the init (ServletConfig config) method, then you will have to call explicitly super.init(config) inside your code. If you override the init () method, then u don’t have to call the super.init () method explicitly
SOURCE : www.referjava.com
b. The init () method of servlet can be overridden. Remember the init () method is overloaded in the GenericServlet class. But the difference lies in which init method are u calling. If you override the init (ServletConfig config) method, then you will have to call explicitly super.init(config) inside your code. If you override the init () method, then u don’t have to call the super.init () method explicitly
SOURCE : www.referjava.com
How will u pass the argument from one servlet to another servlet?
. By Request dispatching.
b. we can use forward and include of request dispatcher and the arguments would be request and response for these methods
SOURCE : www.referjava.com
b. we can use forward and include of request dispatcher and the arguments would be request and response for these methods
SOURCE : www.referjava.com
What is the super class of all servlets?
The Class GenericServlet is the super class of all known servlets. This class is extended by other classes like HttpServlet. The GenericServlet class is protocol independent.
SOURCE : www.referjava.com
SOURCE : www.referjava.com
Subscribe to:
Posts (Atom)