Before going for differences, first let us see how the three Servlet, Observe the hierarchy and understand the relationship between the three. The main difference between GenericServlet and HttpServlet is that the GenericServlet is protocol independent and can be used with any. hi whats the main difference between Generic & httServlet??.
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With the observation, a conclusion can be arrived, to write a Servlet three ways exist. In GenericServlet it is not possible to define separate logic for get and post request.
Really very informative post you shared here. Used with Servlets only. Usage service method need not be overridden. Sign up using Email and Password. Anonymous 16 November at So, if you extend HttpServlet, you can get the functionality of both. Are you asking when you’d use any of those?
Stop by my web page; newspaperarchive. GenericServlet gives a blueprint and makes writing servlet easier. Moreover, it is possible to write a Servlet using three methods: He is currently working as a technology manager at a leading product and web development company.
Before going for differences, first let us see how the three ServletGenericServletHttpServlet are related, their signatures and also at the end similarities.
What is the Difference Between GenericServlet and HttpServlet
Only one object is created first time when first request comes, other request share the same object. The information that you shared with us is very useful and thanks for sharing. Anonymous 6 July at Struts is a MVC framework which is use for web development. Servlet is platform independent. Veera Reddy 24 March at Bob Gilmore 5, 10 40 HttpServlet gives a blueprint for Http servlet and makes writing them easier. In this class, one abstract method exist: GenericServlet is the basic, protocol-neutral implementation of the Servlet interface.
It handles only simple request. Eventhough the HttpServlet does not contain any abstract methods, it is declared as abstract class by the Designers to not to allow the Programmer to create an object directly because a Servlet object is created by the system here system is Servlet Container. Problem All methods are concrete except service method, So you have to implement it as a callback method.
java – What is the difference between GenericServlet, HttpServlet and a Servlet? – Stack Overflow
HttpServlet benefits from these additions by extending GenericServlet. Bela James 9 March at GenericServlet provides simple versions of the life-cycle methods init and destroy and of the methods in the ServletConfig interface.
Object implements Servlet, ServletConfig, java. Its most used method to create servlet. GenericServlet implements the log method, declared in the ServletContext interface. This answer is taken from javapapers.
What is the Difference Between GenericServlet and HttpServlet –
Serializable GenericServlet defines a generic, protocol-independent servlet. HttpServlet does not contain any abstract method. HttpServlet can forward and include and redirect a request.
In other words, it can be used when the web was not standardized to HTTP protocol.
Difference Between GenericServlet and HttpServlet
Servlet Interface to handle a servlet work. Here we explain how to write a program to sort the give string. Anyone who extends this GenericServlet should override service method. More exact information you can find behind the links. It helps an individual in knowing the amount he has to pay or expect while buying or selling the real estate respectively. Here the program is to find the largest number among four numbers. Umesh Prajapati 19 October at It is abstract, so it is not to be directly instantiated.
GenericServlet gives a blueprint and makes writing servlet easier.