![]() Robust: JVM manages Servlets, so we don't need to worry about the memory leak, garbage collection, etc.JPA provides callback methods to listen saving, fetching, updating and removing data from database.Portability: because it uses Java language.Better performance: because it creates a thread for each request, not process.The advantages of Servlet are as follows: Threads have many benefits over the Processes such as they share a common memory area, lightweight, cost of communication between the threads are low. The web container creates threads for handling the multiple requests to the Servlet. There are many advantages of Servlet over CGI. It uses platform dependent language e.g.For each request, it starts a process, and the web server is limited to start processes.If the number of clients increases, it takes more time for sending the response.There are many problems in CGI technology: For each request, it starts a new process. CGI (Common Gateway Interface)ĬGI technology enables the web server to call an external program and pass HTTP request information to the external program to process the request. The web components typically execute in Web Server and respond to the HTTP request. and other elements such as HTML, CSS, and JavaScript. A web application is composed of web components like Servlet, JSP, Filter, etc. How can we upload and download the file from the server?Ī web application is an application accessible from the web.How to create registration form using Servlet and Oracle database?.How to count the total number of visitors and whole response time for a request using Filter?.How many ways can we maintain the state of a user? Which approach is mostly used in web development?.What is the difference between ServletConfig and ServletContext interface?.What are the ways for servlet collaboration and what is the difference between RequestDispatcher and sendRedirect() method?.How to run servlet in Eclipse, MyEclipse and Netbeans IDE?.What information is received by the web server if we request for a Servlet?.What is the web application and what is the difference between Get and Post request?.Servlet is a web component that is deployed on the server to create a dynamic web page.Servlet is a class that extends the capabilities of the servers and responds to the incoming requests.Servlet is an interface that must be implemented for creating any Servlet.Servlet is an API that provides many interfaces and classes including documentation.Servlet is a technology which is used to create a web application.Servlet can be described in many ways, depending on the context. There are many interfaces and classes in the Servlet API such as Servlet, GenericServlet, HttpServlet, ServletRequest, ServletResponse, etc. We have discussed these disadvantages below. However, there were many disadvantages to this technology. Before Servlet, CGI (Common Gateway Interface) scripting language was common as a server-side programming language. Servlet technology is robust and scalable because of java language. Servlet technology is used to create a web application (resides at server side and generates a dynamic web page).
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