Java-Business-Application/C2/Creating-a-Java-web-project/English-timed

Time	Narration
00:00	Welcome to the spoken-tutorial on Creating a Java web project.
00:06	In this tutorial, we will learn:
00:09	* to create a Java Web Project
00:12	* About Deployment Descriptor
00:15	* About web.xml file.
00:19	Here we are using:
00:20	* Ubuntu version 12.04
00:23	* Netbeans IDE 7.3
00:26	* JDK 1.7
00:28	* Firefox web-browser 21.0
00:32	You can use any web-browser of your choice.
00:35	To follow this tutorial, you must have knowledge of:
00:39	Core Java using Netbeans IDE and
00:42	HTML.
00:44	If not, for relevant tutorials please visit our website.
00:50	Now, let us see how to create a simple Java Web Project using Netbeans IDE.
00:56	For this, we will switch to Netbeans IDE.
01:01	On the top left corner of the IDE, Click on File and click on New Project.
01:08	A New Project window opens up.
01:12	From the Categories, choose Java Web and from the Projects choose Web Application.
01:18	Then click on Next.
01:20	On the next window that opens
01:23	type the Project Name as MyFirstProject.
01:27	Leave the Project location and project folder as it is.
01:31	Then, click on Next.
01:35	Select GlassFish server as the Server.
01:39	Note that Context Path here is MyFirstProject, this is the same name as our Project.
01:47	We will learn about this in detail.
01:50	Now, click on Next and then click on Finish.
01:55	Click on the Projects tab.
01:58	We can see there are several nodes here and a web application named My First Project has been created.
02:08	Now, We are not concerned about all of these nodes right now.
02:11	But let me click and show you, what it contains.
02:16	Now let us learn about what is known as Deployment Descriptor.
02:21	A web application’s deployment descriptor describes
02:25	the classes, resources and configuration of the application and
02:31	how the web server uses them to serve web requests.
02:37	The web server receives a request for the application.
02:42	It uses deployment descriptor to map the URL of the request.
02:48	It maps the URL to the code that has to handle the request.
02:52	The deployment descriptor is a file named web.xml.
02:57	Now let us come back to the IDE.
03:00	We are not able to find the web.xml file from the nodes available here.
03:07	To locate it, at the top left of the IDE, click on File, and then click on New File.
03:16	From the Categories, choose Web.
03:19	And from the File Types, choose Standard Deployment Descriptor(web.xml).
03:25	Then click on Next.
03:27	And click on Finish.
03:30	Click on the Files tab on the left hand side of the IDE.
03:34	Note that web.xml is visible under the WEB-INFfolder of the Web node.
03:42	You can see the source code now.
03:46	We have an xml header here.
03:50	We also have a web-app node.
03:53	Now, we shall try running the application.
03:57	To do so, right click on MyFirstProject.
04:02	Click on Clean and Build.
04:04	This will delete any previously compiled files and other build outputs.
04:10	It will also recompile the application.
04:14	Again, right click on MyFirstProject and then click on Run.
04:20	So the server is up and running and it has deploy My first Project.
04:27	A browser window opens up and displays Hello World .
04:32	This is because when we run the project, the web application renders the page shown.
04:39	Now, let’s have a look at the URL here that rendered the page.
04:44	It is localhost colon 8080 slash MyFirstProject.
04:49	So, when we run MyFirstProject by default we get a JSP page that says HelloWorld!
04:57	Now, let us come back to our IDE.
05:00	We can see that under the WEB-INF folder there is index.jsp.
05:07	Double click on index.jsp.
05:10	We can see the source code here.
05:12	It is a simple JSP page with HTML tags only.
05:17	It has the title JSP Page and it has the heading Hello World.
05:24	The server provides index.jsp by default when we run the web application.
05:30	Recall that we had come across something called ContextPath earlier.
05:36	We had set the ContextPath as MyFirstProject itself.
05:41	Now, come back to the browser.
05:44	Type the URL as localhost colon 8080. and press Enter.
05:50	We see that the home page of Glassfish server is displayed.
05:56	Here, 8080 is the default course at which the server runs on the machine.
06:01	This Glassfish server instance may have many applications running on it.
06:08	To access a particular application, type that application name in the URL.
06:15	So, we must type the specific application that has been deployed on that instance.
06:21	So we will type slash MyFirstProject .
06:26	And press Enter.
06:27	So, we see Hello World displayed.
06:31	Let us summarize.
06:32	In this tutorial we have learnt:
06:35	* To create a simple Java Web project
06:38	* Execute the web project
06:41	* and about the web.xml file.
06:44	To know more about this spoken tutorial project,
06:46	watch the video available at the following link.
06:50	It summarizes the Spoken Tutorial project.
06:54	If you do not have good bandwidth, you can download and watch it.
06:58	The Spoken Tutorial Project Team:
07:00	* Conducts workshops using spoken tutorials
07:04	* Gives certificates for those who pass an online test.
07:07	For more details, please write to: contact at spoken hyphen tutorial dot org.
07:13	Spoken Tutorial Project is a part of the "Talk to a Teacher" project.
07:17	It is supported by the National Mission on Education through ICT, MHRD, Government of India.
07:23	More information on this mission is available at-
07:27	http://spoken-tutorial.org/NMEICT- Intro
07:34	The Library Management System has been contributed by a leading software MNC, through their Corporate Social Responsibility program.
07:44	They have also validated the content for this spoken tutorial.
07:48	This is Arya Ratish from IIT Bombay, signing off. Thank you for joining.

Contributors and Content Editors

PoojaMoolya, Pratik kamble, Sandhya.np14