iOS 8：iOS URL Loading System

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源地址：http://fann.im/blog/2012/11/06/ios-url-loading-system/

iOS 整个网络请求系统分为这几部分：

• URL Loading:
  • NSURLRequest / NSMutableURLRequest
  • NSURLResponse / NSHTTPURLResponse
  • NSURLConnection
• Cache Management
  • NSURLCache
  • NSCachedURLResponse
• Authentication and Credentials
  • NSURLCredential
  • NSURLCredentialStorage
  • NSURLAuthenticationChallenge
  • NSURLAuthenticationChallengeSender
  • NSURLProtectionSpace
• Cookie Storage
  • NSHTTPCookie
  • NSHTTPCookieStorage
• Protocol Support
  • NSURLProtocol
  • NSURLProtocolClient

参考 URL Loading System Overview.

iOS 8：iOS URL Loading System

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原文地址：http://www.cnblogs.com/michaellfx/p/4175658.html