ASP (Active Server Pages) by B

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ASP(Active Server Pages)byBülent Resul
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Presentation Outline

• Introduction
• What is an ASP file?
• How does ASP work?
• What can ASP do?
• Differences Between Similar Technologies
• Advantages / Disadvantages
• Future
• Conclusion

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Introduction

• ASP is short form of Active Server Pages
• Before ASP the web pages were created with HTML.
  (Static Content)
• With CGI, we could have dynamic web applications.
• To run an ASP file, we need a server which runs
  IIS

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What is an ASP File?

• An ASP file is an HTML file containing script
  commands and having an extension of .asp.
• There are more than one scripting languages used
  such as VBScript, JavaScript, Jscript
• The scripts are processed by the server.
• No dependence of scripting language for web
  browsers

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What is an ASP File?

• lt gt tags are used to separate the HTML and
  script codes
• Code blocks are processed in the server.

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What is an ASP File?

• lthtmlgt
• ltbodygt
• lt Response.Write (Test Text") gt
• lt/bodygt
• lt/htmlgt
• The code above is an example code of an ASP file.

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What is an ASP File?

• lthtmlgt
• ltbodygt
• Test Text
• lt/bodygt
• lt/htmlgt
• This is the output HTML codes after ASP file is
  processed.

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What is an ASP File?

• Test Text
• This is seen from the browser.

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How Does ASP Work?

• ASP files are only processed when a client
  requests them from the server.
• ISAPI
• There are some .dll files such as ASP.dll which
  contains standard objects.
• Functions are called from these dlls.
• Since these functions are previously defined and
  known, things can be done with ASP are bounded.

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How Does ASP Work?

• ASP codes do not need to be compiled.
• There exists a global.asa file which is used to
  specify events and global session variables which
  are used for all ASP files in the server.
• Before any ASP file is processed, global.asa is
  processed and it defines global events.

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How Does ASP Work?

• The processing of an ASP file starts with the
  separation of ASP scripts and HTML codes in IIS.
• Then each script code is processed.
• The HTML corresponds of these scripts are
  created, and injected related places.
• Final HTML codes are sent to the client and
  displayed by the web browser.

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What can ASP do?

• The most important feature of ASP is creating
  dynamic pages.
• You can manage data with database operations such
  as getting and storing peoples info in the DB.
• Interactive applications can be implemented, i.e.
  news type people like may be displayed.
• Script codes are not sent to the client which
  brings security.

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Differences Between Similar Technologies

• Cost
• Speed PHP files are faster, but JSP files are
  slower than ASP files
• Portability ASP runs on Windows, PHP and JSP can
  run on other platforms
• Language ASP uses VBScript, PHP uses C based
  language, JSP uses Java

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Advantages / Disadvantages

• It gives dynamism to the pages created.
• Interactive pages reflecting the preferences of
  the user can be developed
• One can do bounded things provided by ISAPI
  functions which brings security
• It is slower than most of similar technologies
• Not very much portable

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Next Generation of ASP (ASP.NET)

• It brought some improvements to ASP.
• ASP.NET files have .aspx extension.
• The code is compiled.
• New languages such as C, J... can be used
• New programmable controls
• Configuration files are generally written in XML

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Conclusion

• ASP is a very good innovation to dynamic web
  programming.
• Data obtaining and displaying became more easy
  and efficient.
• It works on Windows based servers on IIS
• When compared to similar technologies, it has
  advantages and disadvantages over them.
• As the next generation, ASP.NET provides very
  many innovations to classical ASP

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References

• http//msdn.microsoft.com/library/default.asp?url
  /library/en-us/iissdk/html/526bf565-7f3e-4c60-a78b
  -bdac64ebb0e0.asp
• http//msdn.microsoft.com/library/default.asp?url
  /library/en-us/iissdk/html/526bf565-7f3e-4c60-a78b
  -bdac64ebb0e0.asp
• http//msdn.microsoft.com/library/default.asp?url
  /library/en-us/dnasp/html/aspover.asp
• http//en.wikipedia.org/wiki/ISAPIframeroom.com/ht
  ml/glossary.html
• http//www.w3schools.com/asp/
• www.webpronews.com/expertarticles/expertarticles/w
  pn-62-20051222ASPvsPHP.html
• http//www.w3schools.com/aspnet/aspnet_vsasp.asp
• http//www.asp101.com/articles/chris/aspvsnet/defa
  ult.asp

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QUESTIONS?
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Thank You