Difference between revisions of "Java-Business-Application/C2/Creating-a-Java-web-project/English-timed"
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Revision as of 14:53, 13 June 2014
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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.
|
| 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 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.
|
| 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
|
| 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. |
