Netbeans/C2/Developing-a-Sample-Web-Application/English-timed

Time	Narration
00.01	Hiii everybody
00.02	Welcome to the tutorial on Introduction to Developing Web Applications on the Netbeans IDE.
00.08	We assume that you have the basic working knowledge of netbeans
00.12	if not please visit the spoken tutorial website for relevant tutorials on Netbeans
00.19	Having viewed the first tutorial you would already be familiar
00.22	with the installation and interface of Netbeans.
00.25	The previous tutorial also teaches you how to create a new project.
00.29	For this demonstration I am using the Linux Operating System Ubuntu v11.04 and Netbeans IDE v7.1.1
00.40	This tutorial will take you through the basics of using Netbeans to develop web applications.
00.45	we will see
00.46	setting up a web application project
00.49	creating and editing web applications source files
00.52	creating a java package and a java source file
00.56	Generating the Getter and Setter methods
00.59	Editing the default JavaServer Pages file
01.02	Creating a JavaServer pages file
01.05	and finally running our web application project
01.08	To follow this tutorial, you will need the Netbeans IDE
01.13	The Java Development Kit (JDK) version 6
01.17	The GlassFish Server Open Source Edition
01.20	All the above can be downloaded in a single bundle from the link shown on the screen
01.26	This tutorial demonstrates how to create a simple web application,
01.30	Deploy it to a server,
01.32	and View its presentation in a browser.
01.35	The application employes (JSP) JavaServer Pages to ask you to input your name
01.42	It then uses JavaBeans component to persist the name during the HTTP session,
01.48	and then retrieves the output on a second JSP page.
01.51	Let us now move to Netbeans and create our web application project
01.58	From the file menu choose New Project
02.01	Under Categories, select Java Web.
02.04	Under Projects, select Web Application , and click Next.
02.09	Give your project a name. I will name my project as HelloWeb
02.15	Specify the Project Location to any directory on your computer.
02.20	Click Next.
02.22	The Server and Settings panel opens.
02.25	Select the version of Java you want to use with your application.
02.29	And Select the server, you want to deploy your application to.
02.34	Click Next.
02.36	In the Frameworks panel,
02.38	click Finish to create the project.
02.41	The IDE creates the HelloWeb project folder.
02.46	This folder contains all of your sources and project metadata.
02.51	The Welcome page, 'index.jsp opens in the Source Editor in the main window.
02.57	You can view the project's file structure in the Files window on the left here
03.05	and it's logical structure in the Projects Window.
03.10	Creating and editing source files is the most important function that the IDE serves.
03.15	Now in the Projects window, expand the Source Packages node.
03.20	Note that the Source Packages node contains only an empty default package node.
03.25	Right-click on the Source Packages and choose New > Java Class.
03.32	Give your class a name. I will name the class as NameHandler
03.40	and in the package combobox let me type org.mypackage.hello
03.54	And Click Finish.
03.57	The NameHandler.java file opens in the Source Editor.
04.01	Now lets us declare a String variable directly below the class declaration
04.07	I will delare a string variable String name and
04.12	I will also add a constructor public NameHandler to the class
04.23	Now let me also add name = null; within the constructor.
04.30	Let us next generate the Getter and Setter Methods
04.33	Right-click the name field in the Source Editor choose Refactor and Encapsulate Fields from the contextual menu
04.46	Refactoring is a disciplined technique for improving the structure of existing code without changing the observable behaviour.
04.56	In short, you can change the structure of the code without changing the behaviour.
05.01	With Refactoring, you can easily move fields, methods or classes around, without breaking things.
05.08	Lets move back to the IDE.
05.11	The Encapsulate Fields dialog opens, listing the name field.
05.16	Notice that the Fields visibility is set to private,
05.20	and Accessors visibility is set to public, by default
05.24	Indicating that the access modifier for the class variables wil be specified as private,
05.30	Whereas the getter and setter methods will be generated with public modifiers respectively.
05.36	Click on Refactor.
05.39	The Getter and Setter methods are generated for the name field.
05.46	The modifier for the class variable is set to private whereas the getter and setter methods are generated with public modifier.
05.56	Your java class should finally look like this
05.59	Let us next Edit the Default JavaServer Pages File
06.04	Let us Refocus the index.jsp file by clicking its tab displayed at the top of the Source Editor.
06.11	Now let us open the Palette manager by going to the tools menu > Palette and click on HTML/JSP code clips
06.21	The Palatte manager opens.
06.26	In the palette manager expand the HTML forms options
06.31	Select the form items.
06.34	Drag it and drop it to the points after the h1 tags in your Source Editor
06.42	The insert form dialog box opens .
06.45	Let us Specify the values as been shown on the screen:
06.49	The Action as response.jsp
06.54	The Method as GET
06.56	And lets us give our form a name as Name input form.
07.04	Click OK.
07.07	An HTML form is added to the index.jsp file.
07.13	Now from the Palette manager select a Text Input item drag it and drop it to a point just before the closing form tags
07.25	In the insert text input dialog box specify the Name as name
07.32	Leave the Type at text
07.34	And Click on OK.
07.36	A HTML <input> tag is now added between the <form> tags.
07.41	Let us delete the empty value attribute from the input tag.
07.49	Now from the palette select the button item.
07.53	Drag it and drop it to the point before the closing form tag
07.58	Specify the Label as OK
08.00	The Type as submit
08.03	And Click on OK again
08.05	An HTML button is now added to a <form> tags.
08.12	Infront of the first input tag let us enter the text Enter your name
08.22	And let us change the default text between the tags
08.28	We will change the text to Entry form
08.34	Now Right click, let me close the palette manager for now.
08.38	Right-click within your Source Editor
08.41	Select the Format option to tidy the format of your code.
08.46	Your index.jsp file should now look like this.
08.49	Let us next Create a JavaServer Pages File
08.53	In the Projects window, right-click on the HelloWeb project node, choose New > JSP.
09.01	The New JSP File wizard opens.
09.05	Name the file as response, and click on Finish.
09.14	Notice that a response.jsp file node displays in the Projects window beneath the index.jsp file ,
09.23	And the new file opens in the Source Editor.
09.26	Open the Palette manager again
09.35	Now expand the JSP option.
09.39	Select a Use Bean item, drag it and drop it to a point just below the <body>
09.53	The Insert Use Bean dialog opens.
09.56	Specify the values as
09.58	The ID as mybean
10.01	The Class as org.mypackage.hello.NameHandler
10.13	Set the Scope as session
10.15	And click on OK.
10.18	Notice that a <jsp:useBean> tag is added beneath the <body> tag.
10.30	JavaBeans are reusable software components for Java.
10.34	They are used to encapsulate many objects into a single object
10.38	So that they can be passed around as a single bean object instead of multiple individual objects.
10.46	Now from the Palette manager, Select a setbean property item, drag it and drop it to a point just before the <h1> tags
11.03	And click on OK.
11.12	Here in the <jsp:setProperty> tag that appears, delete the empty value attribute.
11.21	And set the name attribute to mybean and the property to name
11.30	Now in between the <h1> tags let us change the text to Hello comma space and a exclamation mark
11.40	Now from the Palette manager Select a Get Bean property item drag it and drop it after the Hello text in between the h1 tags
11.51	In the Get Bean property item
11.53	Set the Bean Name to mybean
11.57	And the Property Name to name
11.59	Click on OK.
12.01	Notice that <jsp:getProperty> tag is now added between the <h1> tags.
12.07	Right-click within the Source Editor again, click on Format to tidy the format of your code if required
12.16	The next step is to run our Web Application Project
12.20	Let me close the palette manager
12.26	In the Projects window, right-click the HelloWeb project node and choose Run option
12.32	You can also click the run option from the toolbar or press F6 key on your keyboard to run your Project.
12.41	I will select the button on the toolbar to run my Project
12.44	When you run a Web application the IDE builds and compiles the application code
12.53	Launches the server and deploys the application to the server
12.58	and finally displays the application in a browser window
13.02	To view this process you can open the output window from the Window menu and select the output option
13.10	You can see that your application has been built successfully
13.17	The index.jsp page opens in your default browser
13.23	Let me run the project again
13.27	Here it is, it opens in your default browser
13.32	Note that the browser window may sometime open before the IDE displays the server output
13.38	Now let us Enter the name in the text box in the browser
13.42	For eg Ubuntu and click on OK.
13.46	The response.jsp page displays, providing you with a simple greeting.
13.52	Now to the assignment part
13.56	As an extension to the web application project, insert two more text fields that is totally three input text fields in your application
14.06	Use the JavaBeans Component to set the bean property and
14.09	View its presentation in the browser
14.12	And finally Retrieve the output on the second JSP page
14.17	I have already constructed my assignment
14.21	Let me open my assignment and run it in the IDE
14.30	I am presented with 3 input text fields
14.35	Let me Enter the details and click on Ok
14.42	I should be presented with an output like this
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15.40	This tutorial has been contributed by IT for Change
15.43	Thank you for joining us.

Contributors and Content Editors

PoojaMoolya, Pratik kamble, Sandhya.np14