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[资源] 【分享】Using Google App Engine.Charles Severance.O’Reilly.2009

Using Google App Engine
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Authors(Editors):
Charles Severance
Publisher: O’Reilly
Pub Date: 2009
Pages: 263
ISBN: 978-0-596-80069-7

Preface
The greatest single reason that the World Wide Web has been so widely used and
adopted is because individuals are allowed to participate in the Web. People can produce
web content and create a MySpace page or home pages provided by their school
or organization and contribute their creativity and content to the Web. Free services
like Blogger, Flickr, Google Sites, Google Groups, and others have given us all an outlet
for our creativity and presence on the Web—at no charge.
For most of the life of the Web, if you wanted to have your own rich software-backed
website with data storage, your only choice was to purchase hosting services from an
Internet Service Provider (ISP) and learn database management and a programming
language like PHP to build or run your software. Learning and paying for this much
technology was just beyond the reach of most web users, who simply had to accept the
limited features of MySpace, Blogger, or whatever system hosted their web content.
In April 2008, Google announced a product called App Engine. When you write a
program for the Web that runs on App Engine, your software runs on the Google servers
somewhere in the Google “cloud.” It is as if you are a Google employee and you have
access to the entire scalable Google infrastructure. App Engine captures much of Google’s
experience of building fast, reliable, and scalable websites, and through App Engine,
Google is revealing many of the secrets about how its own applications scale to
millions of users.
The most exciting part of the Google App Engine announcement is the fact that it is
free for moderate levels of use. Every person with a Gmail account can have a number
of free applications running on the Google infrastructure. If your application becomes
extremely popular and your traffic goes above the allowed levels of the free account,
you can pay to use more of Google’s resources. As your application scales, Google
engineers and operations staff take care of all the hardware, data storage, backup, and
network provisioning for you.
The cost of purchasing resources from Google’s cloud of servers is likely far less than
purchasing/renting/maintaining the same amount of resources on your own. Google
focuses on providing hardware and network; you focus on building your application
and the user community around your application.
Maybe you could write the next Twitter, Craigslist, or del.icio.us. Maybe your idea will
be the next big thing that will take off and you can “retire” on the revenue from Google
AdWords. Or maybe you just want a site for your local off-road motorcycle club to
publish its newsletter, share crash pictures, and maintain a mailing list.
Google App Engine removes the cost barrier from building and deploying software and
data-backed websites and putting those sites into production. This book aims to make
it easier for the average user to build and deploy basic websites using Google App
Engine.
The hope is that literally millions of people from around the world will now be empowered
to program on the Web. Who knows what creative applications will evolve
in this new and exciting era?

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Using Google App Engine.Charles Severance.O’Reilly.2009
Using Google App Engine.Charles Severance.O’Reilly.2009
Using Google App Engine.Charles Severance.O’Reilly.2009
Using Google App Engine.Charles Severance.O’Reilly.2009
Using Google App Engine.Charles Severance.O’Reilly.2009
Using Google App Engine.Charles Severance.O’Reilly.2009
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