what is diff between generic servlets and httpservlets

View Answers

May 7, 2012 at 3:36 PM

Difference between GenericServlet and HTTPServlet:

1)GenericServlet belongs to javax.servlet package while HttpServlet belongs to javax.servlet.http package.

2)GenericServlet is an abstract class which extends Object and implements Servlet, ServletConfig and java.io.Serializable interfaces. HTTPServlet is an abstract class which extends GenericServlet and implements java.io.Serializable.

3)The direct subclass to GenericServlet is HttpServlet. To write a GenericServlet you need abstract service() to be overridden. A subclass of HttpServlet must override at least one method of doGet(), doPost(),doPut(), doDelete(), init(), destroy(), getServletInfo().

4)GenericServlet is a protocol-independent servlet while HTTPServlet is a protocol dependent servlet.

Ads

Advertisements

diff between encapsulation and abstraction code
diff between encapsulation and abstraction code diff between encapsulation and abstraction code

diff between encapsulation and abstraction code with output
diff between encapsulation and abstraction code with output diff between encapsulation and abstraction code with output

ModuleNotFoundError: No module named 'what-the-diff'
ModuleNotFoundError: No module named 'what-the-diff' Hi, My... 'what-the-diff' How to remove the ModuleNotFoundError: No module named 'what-the-diff' error? Thanks Hi, In your python

What is the difference between the >> and >>> operators?
What is the difference between the >> and >>> operators? hi, What is the difference between the >> and >>> operators? Thanks

what is the difference between extends and implements
what is the difference between extends and implements difference between extends and implements

what is the Difference between weblogic and jboss?
what is the Difference between weblogic and jboss? what is the Difference between weblogic and jboss

what is the difference between pop and oop
what is the difference between pop and oop what is the difference between pop and oop

What are the differences between EJB and Spring
What are the differences between EJB and Spring Hi, What are the differences between EJB and Spring Thanks

What is the difference between $message and $$message?
What is the difference between $message and $$message? What is the difference between $message and $$message

What is the difference between hibernate and spring
What is the difference between hibernate and spring Hi, What is the difference between hibernate and spring. Thanks

What is the difference between a constructor and a method?
What is the difference between a constructor and a method? Hi, What is the difference between a constructor and a method? Hi, I have found a good link of Java program related to difference between constructor

What is the difference between a JDK and a JVM?
What is the difference between a JDK and a JVM? Hi, What is the difference between a JDK and a JVM? Thanks, Hi, JDK is stand... to compile your source files using a JVM. For more difference between JDK and JVM

What is difference between Path and Classpath?
What is difference between Path and Classpath? hi What is difference between Path and Classpath? thanks Hi, The Path & Classpath are used for operating system level environment variales. We mostly use Path

What is the difference between JPA and Hibernate?
What is the difference between JPA and Hibernate? Hi, I have seen... it for enterprise applications and there is good demand in market. What is the difference between JPA and Hibernate? What a beginner should learn? Thanks Hi

Diff between Runnable Interface and Thread class while using threads
Diff between Runnable Interface and Thread class while using threads Diff between Runnable Interface and Thread class while using threads Hi Friend, Difference: 1)If you want to extend the Thread class

what is the difference between distributed application and web application?
what is the difference between distributed application and web application? what is the difference between distributed application and web application

What’s the difference between load() and get()?
What?s the difference between load() and get()? Hi, What?s the difference between load() and get()? thanks

What is difference between singleton and prototype bean?
What is difference between singleton and prototype bean? Hi, What is difference between singleton and prototype bean? Thanks

What is the difference between JSF, Servlet and JSP?
What is the difference between JSF, Servlet and JSP? What is the difference between JSF, Servlet and JSP

what is the difference between productList==null and productList.size()==0
what is the difference between productList==null and productList.size()==0 what is the difference between productList==null and productList.size()==0? here productList is of type LIST

What is the difference between the Boolean & operator and the && operator?
What is the difference between the Boolean & operator and the && operator? Hello, What is the difference between the Boolean & operator and the && operator? thanks

What are difference between Bean Factory and Application Context ?
What are difference between Bean Factory and Application Context ? Hi, What are difference between Bean Factory and Application Context

What is difference between Core Java and Advanced Java?
What is difference between Core Java and Advanced Java? Hi, I want...? What is difference between Core Java and Advanced Java? Thanks ... topics includeing JSP and Servlets which is necessary to develop web applications

what is the difference between jdk 1.4 and 1.5 and 1.6
what is the difference between jdk 1.4 and 1.5 and 1.6 what is the difference between jdk 1.4 and 1.5 and 1.6 Java 1.4 Features...: automatic conversions between primitive types (such as int) and primitive wrapper

Ads