asp.net的启动顺序(转)

http://www.cnblogs.com/jinlongyu/archive/2010/08/23/1806668.html

当网站启动时，初始化Global.asax.cs的构造方法，然后调用Application_Start，在调用构造方法，在调用Application_BeginRequest，再用Application_AuthenticateRequest，然后如果是一个新页面，则调用Session_Start，然后调用Application_EndRequest。
如果是新网页，则调用Session_Start，如果不是，只是刷新，则不调用。
当IIS重启或者session超时时，调用Session_End。

大体顺序如下：
2009-12-17 13:24:52 [DEBUG] - Global()
2009-12-17 13:24:52 [DEBUG] - Application_Start
2009-12-17 13:24:52 [DEBUG] - Global()
2009-12-17 13:24:53 [DEBUG] - Application_BeginRequest
2009-12-17 13:24:53 [DEBUG] - Application_AuthenticateRequest
2009-12-17 13:24:53 [DEBUG] - Session_Start
2009-12-17 13:24:53 [DEBUG] - Application_EndRequest
==========
2009-12-17 13:26:22 [DEBUG] - Application_BeginRequest
2009-12-17 13:26:22 [DEBUG] - Application_AuthenticateRequest
2009-12-17 13:26:23 [DEBUG] - Application_EndRequest
==========
2009-12-17 13:27:25 [DEBUG] - Application_BeginRequest
2009-12-17 13:27:25 [DEBUG] - Application_AuthenticateRequest
2009-12-17 13:27:25 [DEBUG] - Session_Start
2009-12-17 13:27:25 [DEBUG] - Application_EndRequest
===========
2009-12-17 13:28:54 [DEBUG] - Session_End
2009-12-17 13:28:54 [DEBUG] - Session_End
2009-12-17 13:28:54 [DEBUG] - Application_End
==============
参考： http://blog.csdn.net/lenoval/archive/2009/06/12/4264152.aspx
http://ivorspace.blog.sohu.com/119245318.html