ASP

ASP Introduction

ASP is a powerful tool for making dynamic and interactive Web pages.

In our ASP tutorial you will learn about ASP, and how to execute scripts on your server.

An ASP file can contain text, HTML tags and scripts. Scripts in an ASP file are executed on the server.
What you should already know

Before you continue you should have some basic understanding of the following:

* HTML / XHTML
* A scripting language like JavaScript or VBScript

If you want to study these subjects first, find the tutorials on our Home page.

What is ASP?

* ASP stands for Active Server Pages
* ASP is a Microsoft Technology
* ASP is a program that runs inside IIS
* IIS stands for Internet Information Services
* IIS comes as a free component with Windows 2000
* IIS is also a part of the Windows NT 4.0 Option Pack
* The Option Pack can be downloaded from Microsoft
* PWS is a smaller - but fully functional - version of IIS
* PWS can be found on your Windows 95/98 CD

ASP Compatibility

* To run IIS you must have Windows NT 4.0 or later
* To run PWS you must have Windows 95 or later
* ChiliASP is a technology that runs ASP without Windows OS
* InstantASP is another technology that runs ASP without Windows

What is an ASP File?

* An ASP file is just the same as an HTML file
* An ASP file can contain text, HTML, XML, and scripts
* Scripts in an ASP file are executed on the server
* An ASP file has the file extension ".asp"

How Does ASP Differ from HTML?

* When a browser requests an HTML file, the server returns the file
* When a browser requests an ASP file, IIS passes the request to the ASP engine. The ASP engine reads the ASP file, line by line, and executes the scripts in the file. Finally, the ASP file is returned to the browser as plain HTML

What can ASP do for you?

* Dynamically edit, change, or add any content of a Web page
* Respond to user queries or data submitted from HTML forms
* Access any data or databases and return the results to a browser
* Customize a Web page to make it more useful for individual users
* The advantages of using ASP instead of CGI and Perl, are those of simplicity and speed
* Provide security - since ASP code cannot be viewed from the browser
* Clever ASP programming can minimize the network traffic

You can run ASP on your own PC.
Your Windows PC as a Web Server

* Your own PC can act as a web server if you install IIS or PWS
* IIS or PWS turns your computer into a web server
* Microsoft IIS and PWS are free web server components

IIS - Internet Information Server

IIS is a set of Internet-based services for servers created by Microsoft for use with Microsoft Windows.

IIS comes with Windows 2000, XP, and Vista. It is also available for Windows NT.

IIS is easy to install and ideal for developing and testing web applications.
PWS - Personal Web Server

PWS is for older Windows system like Windows 95, 98, and NT.

PWS is easy to install and can be used for developing and testing web applications including ASP.

We don't recommend running PWS for anything else than training. It is outdated and has security issues.

Windows Web Server Versions

* Windows Vista Business, Enterprise and Ultimate come with IIS 7
* Windows Vista Home Premium comes with IIS 7
* Windows Vista Home Edition does not support PWS or IIS
* Windows XP Professional comes with IIS 5.1
* Windows XP Home Edition does not support IIS or PWS
* Windows 2000 Professional comes with IIS 5.0
* Windows NT Professional comes with IIS 3 and also supports IIS 4
* Windows NT Workstation supports PWS and IIS 3
* Windows ME does not support PWS or IIS
* Windows 98 comes with PWS
* Windows 95 supports PWS

How to Install IIS on Windows Vista

Follow these steps to install IIS on Windows Vista:
1. Open the Control Panel from the Start menu
2. Double-click Programs and Features
3. Click "Turn Windows features on or off" (a link to the left)
4. Select the check box for Internet Information Services (IIS), and click OK

After you have installed IIS, make sure you install all patches for bugs and security problems. (Run Windows Update).

How to Install IIS on Windows XP and Windows 2000

Follow these steps to install IIS on Windows XP and Windows 2000:

1. On the Start menu, click Settings and select Control Panel
2. Double-click Add or Remove Programs
3. Click Add/Remove Windows Components
4. Click Internet Information Services (IIS)
5. Click Details
6. Select the check box for World Wide Web Service, and click OK
7. In Windows Component selection, click Next to install IIS

After you have installed IIS, make sure you install all patches for bugs and security problems. (Run Windows Update).

Test Your Web

After you have installed IIS or PWS follow these steps:

1. Look for a new folder called Inetpub on your hard drive
2. Open the Inetpub folder, and find a folder named wwwroot
3. Create a new folder, like "MyWeb", under wwwroot
4. Write some ASP code and save the file as "test1.asp" in the new folder
5. Make sure your Web server is running (see below)
6. Open your browser and type "http://localhost/MyWeb/test1.asp", to view your first web page

Note: Look for the IIS (or PWS) symbol in your start menu or task bar. The program has functions for starting and stopping the web server, disable and enable ASP, and much more.

How to install PWS on Windows 95, 98, and Windows NT

For Windows 98: Open the Add-ons folder on your Windows CD, find the PWS folder and run setup.exe to install PWS.

For Windows 95 or Windows NT: Download "Windows NT 4.0 Option Pack" from Microsoft, and install PWS.

Test your web as described above.

How to install IIS on Windows Server 2003

1. When you start the Windows Server 2003, you should see the Manage Your Server wizard
2. If the wizard is not displayed, go to Administrative Tools, and select Manage Your Server
3. In the wizard, click Add or Remove a Role, click Next
4. Select Custom Configuration, click Next
5. Select Application Server role, click Next
6. Select Enable ASP.NET, click Next
7. Now, the wizard may ask for the Server 2003 CD. Insert the CD and let it run until it is finished, then click the Finish button
8. The wizard should now show the Application Server role installed
9. Click on Manage This Application Server to bring up the Application Server Management Console (MMC)
10. Expand the Internet Information Services (IIS) Manager, then expand your server, and then the Web Sites folder
11. You should see the Default Web Site, and it should not say (Stopped)
12. IIS is running!
13. In the Internet Information Services (IIS) Manager click on the Web Service Extensions folder
14. Here you will see that Active Server Pages are Prohibited (this is the default configuration of IIS 6)
15. Highlight Active Server Pages and click the Allow button
16. ASP is now active!

Using VBScript in ASP

You can use several scripting languages in ASP. However, the default scripting language is VBScript:

<*html>
<*body>
<*%
response.write("Hello World!")
%*>
<*/body>
<*/html>

PLEASE Remove Firstly All Asterics *

Using JavaScript in ASP

To set JavaScript as the default scripting language for a particular page you must insert a language specification at the top of the page:

<*%@ language="javascript"%>
<*html>
<*body>
<*%
Response.Write("Hello World!")
%*>
<*/body>
<*/html>

PLEASE Remove Firstly All Asterics *

Request.QueryString

The Request.QueryString command is used to collect values in a form with method="get".

Information sent from a form with the GET method is visible to everyone (it will be displayed in the browser's address bar) and has limits on the amount of information to send.

If a user typed "Bill" and "Gates" in the HTML form above, the URL sent to the server would look like this:

<*body>
Welcome
<*%
response.write(request.querystring("fname"))
response.write(" " & request.querystring("lname"))
%*>
<*/body>

PLEASE Remove Firstly All Asterics *

Results:

Welcome Bill Gates

Request.Form

The Request.Form command is used to collect values in a form with method="post".

Information sent from a form with the POST method is invisible to others and has no limits on the amount of information to send.

If a user typed "Bill" and "Gates" in the HTML form above, the URL sent to the server would look like this:

<*body>
Welcome
<*%
response.write(request.form("fname"))
response.write(" " & request.form("lname"))
%*>
<*/body>

PLEASE Remove Firstly All Asterics *

Results:

Welcome Bill Gates

How to Create a Cookie?

The "Response.Cookies" command is used to create cookies.

Note: The Response.Cookies command must appear BEFORE the <*html> tag.

<*%
Response.Cookies("firstname")="Alex"
Response.Cookies("firstname").Expires=#May 10,2012#
%*>

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Read all Cookies

<*html>
<*body>

<*%
dim x,y
for each x in Request.Cookies
response.write("<*p>")
if Request.Cookies(x).HasKeys then
for each y in Request.Cookies(x)
response.write(x & ":" & y & "=" & Request.Cookies(x)(y))
response.write("<*br />")
next
else
Response.Write(x & "=" & Request.Cookies(x) & "<*br />")
end if
response.write "

"
next
%**>

<*/body>
<*/html>

PLEASE Remove Firstly All Asterics *

Results:

firstname=Alex

user:firstname=John
user:lastname=Smith
user:country=Norway
user:age=25

Sending e-mail with CDOSYS

CDO (Collaboration Data Objects) is a Microsoft technology that is designed to simplify the creation of messaging applications.

CDOSYS is a built-in component in ASP. We will show you how to use this component to send e-mail with ASP.

How about CDONTs?

Microsoft has discontinued the use of CDONTs on Windows 2000, Windows XP and Windows 2003. If you have used CDONTs in your ASP applications, you should update the code and use the new CDO technology.

Examples using CDOSYS

Sending a text e-mail:

Sending a text e-mail with Bcc and CC fields:

<*%
Set myMail=CreateObject("CDO.Message")
myMail.Subject="Sending email with CDO"
myMail.From="mymail@mydomain.com"
myMail.To="someone@somedomain.com"
myMail.Bcc="someoneelse@somedomain.com"
myMail.Cc="someoneelse2@somedomain.com"
myMail.TextBody="This is a message."
myMail.Send
set myMail=nothing
%*>

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Sending an HTML e-mail:

<*%
Set myMail=CreateObject("CDO.Message")
myMail.Subject="Sending email with CDO"
myMail.From="mymail@mydomain.com"
myMail.To="someone@somedomain.com"
myMail.HTMLBody = "

This is a message.

"
myMail.Send
set myMail=nothing
%*>

PLEASE Remove Firstly All Asterics *

Sending an HTML e-mail that sends a webpage from a file on your computer:

Sending a text e-mail using a remote server:

<*%
Set myMail=CreateObject("CDO.Message")
myMail.Subject="Sending email with CDO"
myMail.From="mymail@mydomain.com"
myMail.To="someone@somedomain.com"
myMail.TextBody="This is a message."
myMail.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing")=2
'Name or IP of remote SMTP server
myMail.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver")="smtp.server.com"
'Server port
myMail.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport")=25
myMail.Configuration.Fields.Update
myMail.Send
set myMail=nothing
%*>

PLEASE Remove Firstly All Asterics *

THANK YOU

Monday, July 4, 2011

This is a message.

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