Servlet.A servlet is a Java class that extends the capabilities of servers by generating dynamic content in response to client requests. It processes requests, performs business logic, and constructs responses. The primary methods in a servlet are doGet and doPost, which handle GET and POST reque...
In August, Sun made available the specification for Java Servlet API 2.2. This article explains the differences between Java Servlet API 2.1 and 2.2, discusses the reasons for the changes, and shows how you can write servlets using version 2.2. (3,500 wo
Servlet 2.5: Sep 2005: Requires JavaSE 5, supports annotation Servlet 2.4: Nov 2003: web.xml uses XML Schema Servlet 2.3: Aug 2001: Addition of Filter Servlet 2.2: Aug 1999: Becomes part of J2EE, introduced independent web applications in .war files Servlet 2.1: Nov 1998: First official s...
Programs created in Java offerportabilityin a network.In Java, thesource codeis compiled intobytecode, which can run anywhere in a network, on aserveror on aclientthat has a Java virtual machine (JVM). In contrast, many other programming languages compile code into platform-specificbinary files...
The javax.servlet and javax.servlet.http packages provide interfaces and classes for writing servlets. All servlets must implement the Servlet interface, which defines life-cycle methods. When implementing a generic service, you can use or extend the GenericServlet class provided with the Java Servlet...
Questions on Servlets.===1) What is servlet?Ans: Servlets are modules that extend request/response-oriented servers, such asjava-enabled web servers. For example, a servlet might be responsible for takingdata in an HTML order-entryform and applying the business logic used to update acompany's...
and runtime environment that is used for developing and running large-scale, multi-tiered, reliable, scalable and secure network applications. All the java web and enterprise applications are developed using this platform. Technologies likeservlet, jsp, struts, JPA, EJBetc are part of this ...
Java EE). For example, frameworks such as Struts and JavaServer Faces all use a Javaservletto implement the front controller design pattern for centralizing requests. Java EE environments can be used in the cloud as well, so developers can build, deploy,debugand monitor Java applications in ...
Apache Tomcat is a long-lived, open source Java servlet container that implements core Java enterprise (now Jakarta EE) specifications, including the Jakarta Servlet, Jakarta Server Pages, and Jakarta WebSocket specs. Tomcat was first released by the Apache Software Foundation in 1998, just fou...
在服务器端运行并创建动态页面的应用程序称为Web应用程序。目前,用Java创建Web应用时,主要采用Servlet、JSP、Struts、Spring、Hibernate、JSF等技术。 3) Enterprise Application 企业应用 An application that is distributed in nature, such as banking applications, etc. is called enterprise application. It has adv...