Java Servlet

Java Servlets: By Example takes the reader into the world of servlets, moving example by example from the simple to the complex. In many cases, this can reduce page download times by a factor of five or ten. First, you have to install a special program called a servlet engine to turn your computer into a server that’s capable of running servlets. Servlets have to be kept in a named package for deployment, instead of the default no-name package. Java Servlet is the foundation technology for Java server-side programming. Finding even one tested code "recipe" that solves a gnarly problem in this comprehensive collection of solutions and best practices will save hours of frustration--easily justifying the cost of this invaluable book. 0 which is also part of Java EE 6. The Request We’ve seen how the servlet finds out about the server and about the client. attribute has two main sub attributes and. Special Edition Using Java Server Pages and Servlets (2000) by Mark Wutka: Java Developer's Guide to Servlets and Jsp (2000) by William B. Download4J is a JAVA component (Servlet + JavaBean) that allows to download files. 6 What Servlet 4 and HTTP/2 Mean 0. xml, and resides in the app's WAR under the WEB-INF/ directory. The generated content is commonly HTML , but may be other data such as XML. 5 hours ago · - Strong in core Java and Servlets programing and debugging skills. xml Deployment Descriptor file describes how to deploy a web application in a servlet container such as Tomcat. Specifikationen beskriver en implementation av ett API som låter programmerare skapa dynamiskt webbinnehåll med hjälp av programmeringsspråket Java. This is the URL that is called in your. Java Servlet Tutorial for Beginners; Java Servlet Filter; Java JSP Tutorial for Beginners; Java JSP Standard Tag Library (JSTL) Install Web Tools Platform into Eclipse; Create a simple Login application and secure pages with Java Servlet Filter; Create a Simple Java Web Application Using Servlet, JSP and JDBC. jsp, umístěné ve webové aplikaci, které jsou při prvním požadavku na zobrazení automaticky převedeny servletovým kontejnerem na servlet (. We just released a major upgrade of our Java SDK, which now includes Java Webapp (Servlet 3. We left off with a basic listing. Specifikationen beskriver en implementation av ett API som låter programmerare skapa dynamiskt webbinnehåll med hjälp av programmeringsspråket Java. JSDK also contains a web server and servlet engine to test your creations. From the community for the community | | |. Jdbc Architecture 3. This is done in the web. The basic difference between an applet and a servlet is that an applet is executed on the client-side whereas, a servlet is executed on the server-side. How to use WebSocket of Tomcat. We are using mysql database, so we need to create a table first as given below. The diagram below intends to explain the configuration of a Java Servlet: See Java's own help page here: What Is a Servlet?. If servlet security is required, an appSecurity feature should also be configured; in the absence of a security feature any security constraints for the application will be ignored. Finding even one tested code "recipe" that solves a gnarly problem in this comprehensive collection of solutions and best practices will save hours of frustration--easily justifying the cost of this invaluable book. The second way is to replace java. You need to understand Servlet thoroughly before you could proceed to other Java server-side technologies such as JavaServer Pages (JSP) and JavaServer Faces (JSF). This means that first we'll want to load Spring via a Servlet listener. Servlets are the pure Java solution to handle web requests. CodesJava Easy learning with example program codes. Java Servlet is much faster then CGI and Perl since it runs in the same JVM. Unlike agents, servlets load when the Web server starts up and stay resident on a server. Java Servlet Technology Shortly after the Web began to be used for delivering services, service providers recognized the need for dynamic content. When there is a request from a client, servlet container decides to which application it should forward to. It was the first web technology for Java and many new web technologies have arrived since. Java web applications use a deployment descriptor file to determine how URLs map to servlets, which URLs require authentication, and other information. com/java-api-examples/index. The effective Java logout servlet code. This is the first article in the Java Web Applications tutorial and you will learn about core concepts of web application and how we can use Eclipse to create our first web application. jar file from the internet,. 0 and HTTP/2 mean to you 2. Servlet and JSP Tutorial: Web & HTTP. Servlet technology is robust and scalable because of java language. attribute is used to define a init parameter. Still, Java Servlets are very useful, both to know, and for certain use cases. For example, in a login screen, we need to send to the server, the user and the password so that it validates them. Courses are available on JSF 2, PrimeFaces, Mobile development for Android, Rich Internet Apps with Ajax (usually with jQuery, but can use Prototype, Scriptaculous, Dojo, or Ext-JS), beginning and intermediate servlets and JSP, advanced servlets and JSP, SCWCD, Struts, Java 7 programming, SCJP, and more. java builds an HTML page to return to the end user. TERMS USED These terms are used throughout the specification. Download javax. xml file, and the other using annotations. AN OVERVIEW OF SERVLET TECHNOLOGY SERVER SETUP AND CONFIGURATION WEB APPLICATION STRUCTURE BASIC SERVLET EXAMPLE Java Servlets Java Servlets - Compiled By Niti… Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. This component could be integrated in any JSP/Servlets application. 0 new Annotations defined in javax. Welcome to the Java Community space. I checked my processimage its not cropped or anything. JSP - Servlets: Full Login Example In this section we are going to discuss the implementation of a complete Login application (We received the source code of this application through Amira Thabet). Servlets receive and respond to requests from Web clients, usually across HTTP, the HyperText. BookListServlet used a BookRepository object (DAO) to load a list of books and then delegated to book-list. Big Data Hadoop Architect Masters Program. programcreek. by Marty Hall. Servlets have access to the entire family of Java APIs, including the JDBC API to access enterprise databases. 0 Means to You 1. JavaServer Pages (JSP) is a technology that helps software developers create dynamically generated web pages based on HTML, XML, or other document types. attribute has two main sub attributes and. 2, and Servlets 3. It is lightweight and most commonly used as a part of web pages, whose implementatio. Quickly and easily develop desktop, mobile, and web applications with Java, JavaScript, HTML5, PHP, C/C++ and more. A key thing to remember is that both EJBs and servlets must execute inside of a container. This is the first article in the Java Web Applications tutorial and you will learn about core concepts of web application and how we can use Eclipse to create our first web application. 8 Servlet 4 Public. Brogden: Design and Implement Servlets, JSPs, and EJBs for IBM WebSphere Application Server (IBM Redbook) (2000) by IBM Redbooks: Core Servlets and JavaServer Pages (JSP) (2000) by Marty Hall. In many cases, this can reduce page download times by a factor of five or ten. Setting up your web. This Java tutorial series will help you get started learning Java programming from the basics. It explains the servlet lifecycle, showing how to use servlets to maintain state information. a web browser which can be on any platform. We will also implement a use case that demonstrates the concrete advantages of asynchronous processing with servlets. For C# calling Java, the Internet also tried, but could not find a suitable, I do not understand to this Java even the nature of what is, this is someone else's Java code, the Java code was also posted, I used the C# to use, thank you, please give details of the C# code, I level low, light principle, I still can't be, oh, please give the complete code. 第二十二章 Servlet 国际化. 1 alfresco 6 alfresco summit alta disponibilidad apple auditoría axis basic rules beecon behavior browser castor cmis cxf database dirty tips dnie educación encoding eni excel firma electrónica ftp ftps IMAP infografía issue j2ssh java javamail javascript jdbc jibx jpa junit keensoft. Java Servlets extend and enhance Web servers. A servlet is a Java programming language class that is used to extend the capabilities of servers that host applications accessed by means of a request- response programming model. Special Edition Using Java Server Pages and Servlets (2000) by Mark Wutka: Java Developer's Guide to Servlets and Jsp (2000) by William B. 3 months ago 4 replies. Java software for your computer, or the Java Runtime Environment, is also referred to as the Java Runtime, Runtime Environment, Runtime, JRE, Java Virtual Machine, Virtual Machine, Java VM, JVM, VM, Java plug-in, Java plugin, Java add-on or Java download. Quickly and easily develop desktop, mobile, and web applications with Java, JavaScript, HTML5, PHP, C/C++ and more. Servlets have access to the entire family of Java APIs, including the JDBC API to access enterprise databases. servlet « j « Jar File Download. One of them is Servlet 3. Returns the minor version as an int of the Servlet API that this Servlet Container supports. Servlet and JSP Tutorial: Web & HTTP. *FREE* shipping on qualifying offers. You will learn how to develop Java web applications using Servlets. setContentType("application/pdf"). servlet是一个规范,那实现了servlet的类,就能处理请求了吗? 答案是,不能。 你可以随便谷歌一个servlet的hello world教程,里面都会让你写一个servlet,相信我, 你从来不会在servlet中写什么监听8080端口的代码,servlet不会直接和客户端打交道!. n computing a small program that runs on a web server, often accessing databases in response to client input. It is lightweight and most commonly used as a part of web pages, whose implementatio. I type in my name and password and they are both correct. jsp, umístěné ve webové aplikaci, které jsou při prvním požadavku na zobrazení automaticky převedeny servletovým kontejnerem na servlet (. XDE Java Spell Checker can use a servlet back-end to spell check an HTML page's textarea on the front end. Java Servlets are part of the Java Enterprise Edition (Java EE). Creating First Servlet Application using Eclipse IDE. Servlet 教程 Servlet 为创建基于 web 的应用程序提供了基于组件、独立于平台的方法,可以不受 CGI 程序的性能限制。Servlet 有权限访问所有的 Java API,包括访问企业级数据库的 JDBC API。. For running servlets, you need to set the CLASSPATH for your servlet engine. This class supports the doPost method that lets you submit data from an Experience Manager web page to the Sling servlet. It's possible to have a servletW serve up PDF content by specifying the content type of the servlet response to be the 'application/pdf' MIME type via response. CodesJava Easy learning with example program codes. Java Servlets are separate network object altogether, and you'll have to run a special Servlet program on a specific port on a Unix machine. Web Terminology for beginners and professionals with concepts of get vs post, website, static vs dynamic website, http, http requests, server, container, content type etc. I'm very new to web apps and Servlets and I have the following question: Whenever I print something inside the servlet and call it by the webbrowser, it returns a new page containing that text. We will also implement a use case that demonstrates the concrete advantages of asynchronous processing with servlets. Specifically, we will look at two ways to register a Java Servlet in Java EE — one using a web. Servlets provide component-based, platform-independent methods for building Web-based applications, without the performance limitations of CGI programs. A servlet is a Java class and therefore needs to be executed in a Java VM by a service we call a servlet engine. Servlets and JSPs. Can we modify body of HttpServletRequest within filter. Java servlet produces HTML codes by calling out. The best-known servlet engine is Apache Tomcat, which is available free from the Apache Software Foundation. Then container provides request and response to servlet. Java Servlet Singlethreadmodel. Object with javax. Java compiled Java servlets can be invoked multiple times by the Web servers without any need of recompilation. You will understand what JSPs are, how they are related to servlets and how to write view logic using them. by Marty Hall. A servlet is the exact same concept--a piece of Java code that runs on the server in response to a browser request. Discover the best Java Servlets Software Programming in Best Sellers. If you have more than one server or device, you will need to install the certificate on each server or device you need to secure. Servlet interface, you can do it by extending one of the following two classes: javax. When you fill the form and submit it the request is sent to server for further processing. It helps in enhancing Web server functionality with minimal overhead, maintenance and support. What is javax. The generated content is commonly HTML , but may be other data such as XML. These components are open source and available for commercial use and distribution. Java is a general purpose high-level programming language which is class-based and an object-oriented programming language. Java Download » What is Java? » Do I have Java? » Need Help? » Uninstall About Java. Object with javax. We want to create a small web application (library), that illustrates the usage of JavaServer Pages combined with Java Servlets. How does the client or the Browser send these parameters using the methods GET or POST,. Tutorial of how to call Enterprise Java Beans (EJB) from a Java Servlet : Injecting EJB into Servlet Posted by Imed Bouchrika on December 8, 2013 in EJB , J2EE 1 Comment This tutorial assumes that you have an EnterpriseJavaBean (EJB) deployed on a J2EE Application Server as well as a working Web Servlet if not. annotation package. AVIDRapidTools (ART) ART is a Java framework for the rapid development of wireless and wired applications. The application is as follows, 1. PostgreSQL is used as database server and Tomcat 7 is used as application server. IDAutomation offers a tutorial for servlet implementation with Apache Tomcat. Free Online Version in PDF More Servlets and JavaServer Pages. A Detailed Overview. 1 means the servlet will be loaded into the web-container when Tomcat starts. The Java platform provides a Servlet developer with a robust API, object-orientated programming, platform neutrality, strict types, garbage collection, and all the security features of the JVM. What are the new features added to Servlet 2. Check Part I and Part II here. HelloWorld class and that the value of the greeting init parameter is Hello World. xml (check the check box) then open web xml file and examine the auto generated code about servlet mapping. Customized courses from the book's author, available at public venues or onsite at your organization. Tools that can analyze applications and. 이는 HTML에 특수 태그를 사용하여 Java 코드를 포함할 수 있다. They provide the features of traditional CGI scripts with the additional benefits of efficiency and portability. Servlets are commonly used to process or store a Java class in Java EE. (While the term "J2EE" has been updated in Java parlance with the simpler JEE, the ColdFusion Administrator still refers to storing sessions in the JEE servlet scope as "J2EE sessions". setContentType("application/pdf"). We will also implement a use case that demonstrates the concrete advantages of asynchronous processing with servlets. Object with javax. You will learn how to develop Java web applications using Servlets. - Hands on experience with designing and building AEM components and working with JCR, AEM workflows. Java Server Pages. Java Barcode is a Java Barcode Generator Java library (jar) which has combined 30+ linear & 2d barcode symbology types into one single jar file. What is the issue? You may face an issue when you try to write your own Servlet logout. Then container provides request and response to servlet. Hire the best freelance Java Servlets Developers in Georgia on Upwork™, the world's top freelancing website. Nó phát sinh nội dung thông thường là HTML, đôi khi cũng có thể là các ngôn ngữ khác như XML. The second way is to replace java. Servlets creates static web pages, where as Applets creates dynamic web pages 4. Welcome to the Java Servlet Tutorial, which is part of the Java Certification course offered by Simplilearn. Hence, Java Servlet is a technology used in the creation of dynamic web applications. Servlets or JPSs is the fundamental building block of any web application. It is developed by an open source community and can be downloaded for free from Eclipse. Required Files; File Description and Name Size : JSR-000315 Java Servlet 3. Before coding your Servlet or JSP to handle file upload request, you need to know a little bit about File upload support in HTML and HTTP protocol. Specifically, in this unit you add directives for the header and footer and specify which files they will be applied to. Servlets are commonly used to process or store a Java class in Java EE. Then we'll register servlets in Spring Boot using XML configuration, Java configuration, and through. JavaRanch Cattle Drive - Servlets. Name your JSP - to be consistent with the example, name it "Home. Servlets have opened the door to a world of client/server applications that would have been too difficult or too time-consuming to consider before. Now, that you have learned a few basics of web, let's jump to the core topic and understand the concept of a servlet. I checked my processimage its not cropped or anything. doPost() does invisible data submission whereas doGet() does visible data submission, through url. String file). AN OVERVIEW OF SERVLET TECHNOLOGY SERVER SETUP AND CONFIGURATION WEB APPLICATION STRUCTURE BASIC SERVLET EXAMPLE Java Servlets Java Servlets - Compiled By Niti… Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. This tutorial will demonstrate this using a project with the following structure. SavePoint 9. Developers can build web applications using the Servlet API to interact with the request/response workflow. I will try to explain the basic notion behind the purpose of using and learning this language. Java Barcode Servlet Implementation Example: Java Servlets are used to add barcode support to a dedicated web server. Java+You, Download Today!. Updatable ResultSet 3. Servlet(Server Applet),全称Java Servlet,未有中文译文。是用Java编写的服务器端程序。其主要功能在于交互式地浏览和修改数据,生成动态Web内容。狭义的Servlet是指Java语言实现的一个接口,广义的Servlet是指任何实现了这个Servlet接口的類別,一般情况下,人们将. Insert,Update,Delete in single servlet How to include CSS or JS or image file in JSP Liferay? How to use @AttributeOverrides and @AttributeOverride annotations in hibernate. xml file (Deployment descriptor). This mainly used for creating a javabean object and call the method and dispatching the servlet to another resource. Unlike agents, servlets load when the Web server starts up and stay resident on a server. Because it is Java, the API can be invoked from within a servlet, thus giving access to Excel spreadsheets over internet and intranet web applications. Java Servlets are server-side Java program modules that procedure and answer customer demands and actualize the servlet interface. jsp step2 : develop a Dao and name UserDAO. We are going to develop a web application in which User can register and then login to the application. Do not click on finish at first. Required Files; File Description and Name Size : JSR-000315 Java Servlet 3. So i click on the log-in link on the 'somePage' and get redirected to the 'login' page. xml is part of the servlet standard for web applications. A servlet is the exact same concept--a piece of Java code that runs on the server in response to a browser request. 1 Servlet Definition A servlet definition is a unique name associated with a fully qualified class name of a class implementing the Servlet interface. The root cause of IllegalStateException exception is a java servlet is attempting to write to the output stream (response) after the response has been committed. If you have other servlets in your project you can set load-on-startup values like 2,3, 100 etc. Statement 5. Check Part I and Part II here. Its still clear. Introduction. tag in JSP file. For example, in a login screen, we need to send to the server, the user and the password so that it validates them. ) What is the difference between servlets and applets? 1. Specifically, in this unit you add directives for the header and footer and specify which files they will be applied to. - Hands on experience with designing and building AEM components and working with JCR, AEM workflows. A servlet is a server side platform independent, dynamic and multithread java program, which runs in the context of server for extending the functionality of server. (By analogy with "applet") A Java program that runs as part of a network service, typically an HTTP server and responds to requests from clients. A servlet is a Java file that takes requests from a client, processes the request, and generates an HTML page. I'm very new to web apps and Servlets and I have the following question: Whenever I print something inside the servlet and call it by the webbrowser, it returns a new page containing that text. This cookbook in the Java EE Servlet tutorial covers building a simple listing in JSP and Servlets. AngularJS Example Using a Java RESTful Web Service. xml Reference Guide for Tomcat Introduction. The latest official version is Servlets 3. HttpServlet. Modern-day Java web development uses frameworks that are built on top of servlets. The Search Engine for The Central Repository. Install Orion Create a Web Page Test the Servlet Server Create a Servlet About HTML Servlets Assignment Servlets-1 (NowServlet) About Packages About web. AVIDRapidTools (ART) ART is a Java framework for the rapid development of wireless and wired applications. One of them is Servlet 3. It helps in enhancing Web server functionality with minimal overhead, maintenance and support. ClassNotFoundException: org. Weld can also be used in plain servlet containers (Tomcat, Jetty) or Java SE. We will learn about Java Servlet and various other elements of Java Servlet in this tutorial. WinstoneControl JNDI support I know that in the introduction I said that Winstone was only going to support the core servlet APIs, but I've since discovered that most people use just a little more than the core servlet API offers. Then we'll register servlets in Spring Boot using XML configuration, Java configuration, and through. Java Download » What is Java? » Do I have Java? » Need Help? » Uninstall About Java. Behind the URL as listed in the above Javascript code is a Java Servlet as listed below. 1+) support with a ton of user automation. Instead, a filter provides functionality that can be “attached” to any kind of web resource. In next article you will learn to forward this response to JSP page. Java Servlet. How to use WebSocket of Tomcat. jsp step2 : develop a Dao and name UserDAO. Web Terminology for beginners and professionals with concepts of get vs post, website, static vs dynamic website, http, http requests, server, container, content type etc. In simple words, it is a system that manages Java Servlet components on top of the Web server to handle the Web client requests. java builds an HTML page to return to the end user. Introduction A Servlet is a Java-based server-side web technology. Servlet 3 introduced use of java annotations to define a servlet, filter and listener servlets and init parameters. Required Files; File Description and Name Size : JSR-000315 Java Servlet 3. This is done in the web. Learm more about java,FAQ,servlets,applets,JDK,J2EE,RMI,Weblogic,WebSphere,Application servers. Install Orion Create a Web Page Test the Servlet Server Create a Servlet About HTML Servlets Assignment Servlets-1 (NowServlet) About Packages About web. JavaServer Pages (JSP) is a technology that helps software developers create dynamically generated web pages based on HTML, XML, or other document types. This is a major advantage compared to 'send redirect'. Unlike agents, servlets load when the Web server starts up and stay resident on a server. Java Servlet Programming covers everything Java developers need to know to write effective servlets. The NetBeans IDE is used for this application. pauln October 30, 2012 at 2:14 pm. For servlets, this is usually a Web server interfaced with a servlet engine. For example, if a servlet 450 * overrides doGet, this method returns the 451 * following header: 452 * 453 *. click next and there you can add servlet info to the web. This approach has advantages but also drawbacks. Setting up your web. Discover the best Java Servlets Software Programming in Best Sellers. java builds an HTML page to return to the end user. The NetBeans IDE is used for this application. Welcome to the Java Community space. Java-Servlets-JSP. - Hands on experience with designing and building AEM components and working with JCR, AEM workflows. Embed Java servlet code in HTML pages Purposes “Enable the separation of dynamic and static content” “Enable the authoring of Web pages that create dynamic content easily but with maximum power and flexibility” Server automatically creates, compiles, loads, and runs a special servlet for the page 40 Behind the Scene Java Compiler Servlet. For details see the Java Servlets 3. Java Servlet Factorial Program Using Recursion. The API and Issue Tracker for the JCP Standard Java Servlet. Java EE 7 is live, and it includes many changes in 14 active JSRs. Servlet Backend. A filter is an object that can transform the header and content (or both) of a request or response. Apache NetBeans Fits the Pieces Together. One of those improvements will be the adoption of HTTP/2 to Servlet technologies. HttpServlet. java servlet api free download. Some of the important Servlet annotations are: WebServlet – We can use this annotation with Servlet classes to define init parameters, loadOnStartup value, description and url patterns etc. Introduction The next version of Java EE will be version 8 and when it is eventually released we will see some very interesting improvements in existing APIs. This functionality allows a Servlet to have initial parameters specified outside of the compiled code. Sometimes it is necessary to provide initial configuration information for Servlets. It's possible to have a servletW serve up PDF content by specifying the content type of the servlet response to be the 'application/pdf' MIME type via response. Many application will use servlets instead of JSP and others will use servlets in conjunction with JSP. Introduction 2. Most Java servers today are compatible with Servlet 4. A servlet is a Java file that takes requests from a client, processes the request, and generates an HTML page. Servlet technology is used to create a web application (resides at server side and generates a dynamic web page). Java Servlet : A Java servlet is a Java program that extends the capabilities of a server. So who will initiate and run the method of Servlet. ExampServlet. Now I am going to show you how to use doPost() method to handle a form POST submission. Although servlets can respond to any type of request, they are commonly used to extend the applications hosted by web servers. In next article you will learn to forward this response to JSP page. Training course slides derived from the book. Java Web Application Tutorial for Beginners. Java+You, Download Today!. For running servlets, you need to set the CLASSPATH for your servlet engine. 0 Means to You 1. In this blog, we want to highlight the steps required to create a Java servlet that connects to Oracle Database using Oracle JDBC and UCP. gl/ttju1C Support Us Through Donations : https://goo. *FREE* shipping on qualifying offers. Java is one of the integral parts of the web industry that many websites rely on. You need to understand Servlet thoroughly before you could proceed to other Java server-side technologies such as JavaServer Pages (JSP) and JavaServer Faces (JSF). xml Deployment Descriptor file describes how to deploy a web application in a servlet container such as Tomcat. I was hoping there was an easy way to do this using servlets without having to rely on a framework. Some Features. Servlety jsou Java protějšek jiných technologií pro tvorbu dynamického webového obsah jako jsou PHP nebo ASP. The servlets work on a request - response programming model. io for system input and output. Creating First Servlet Application using Eclipse IDE. They accept requests and create response to the clients. In this guide we'll cover how to set up your Java development environment for a Servlet project. Java-Servlets-JSP. HttpServlet. Uploading File to the server using Servlet and JSP is a common task in Java web application. Hence, Java Servlet is a technology used in the creation of dynamic web applications. The Request We’ve seen how the servlet finds out about the server and about the client. n computing a small program that runs on a web server, often accessing databases in response to client input. 1+) support with a ton of user automation. Servlets are commonly used to process or store a Java class in Java EE. A template engine is a software module which is used to generate HTML pages. A type of Java programming language that enhances the power of a server. servlet « j « Jar File Download. 0 Final Release API for Evaluation javax. 3 HTTP/2 Comes to Java - What Servlet 4. I had a question about Java Servlets. A servlet is a Java class that runs on the server side that receives HTTP data and does a processing or more following the constraints of the HTTP protocol. We'll also talk about a couple helpful tools that we recommend for all Java applications that use Twilio: ngrok and the Twilio Java SDK. Released in 1999 by Sun Microsystems , [1] JSP is similar to PHP and ASP , but it uses the Java programming language. You need to understand Servlet thoroughly before you could proceed to other Java server-side technologies such as JavaServer Pages (JSP) and JavaServer Faces (JSF). The Java Servlet API is a Standard Extension to the Java platform that provides web application developers with a simple consistent mechanism for extending the functionality of a web server. To create services that use this transport you can either use the CXF APIs (for example, see JAX-WS) or create an XML file which registers services for you. SendRedirect in servlet example program code : It (sendRedirect(relative url)) is the method of HttpServletResponse interface which is used to redirect response to another resource.