Java-Business-Application/C2/Creating-a-Java-web-project/English-timed
From Script | Spoken-Tutorial
Revision as of 14:53, 13 June 2014 by PoojaMoolya (Talk | contribs)
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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.
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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
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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 name 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-INF folder 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 windows open 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.
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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 dot 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
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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
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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
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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. |