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http://spring-security-oauth.codehaus.org/tutorial.html

针对oauth主要有两种类型的app：

oauth provider

oauth consumer

Introduction

There's a good getting started guide that illustrates OAuth by describing two different (but related) services. One is a photo-sharing application. The other is a photo-printing application. In OAuth terms, the photo sharing application is the OAuthprovider and the photo printing application is the OAuth consumer.

For this tutorial, we will see OAuth for Spring Security in action by deploying a photo-sharing application and a photo-printing application on our local machine. We'll name the photo-sharing application "Sparklr" and the photo-printing application "Tonr". A user named "Marissa" (who has an account at both Sparkr and Tonr) will use Tonr to access her photos on Sparklr without ever giving Tonr her credentials to Sparklr.

这里说的是：

  两个不同而相关的services,一个是相片分享应用

  在Oath词汇中，第一个是作为OAth provider, 第二个是作为Oauth consumer.

  一个用户Marissa在Sparklr和Tonr里面都有一个账户，将会使用Tonr去访问Sparklr中的相片，甚至不用把在Sparklr的账户密码信息告诉Tonr.(这句话有点疑问？）

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