{"id":197,"date":"2012-05-09T01:16:14","date_gmt":"2012-05-08T17:16:14","guid":{"rendered":"http:\/\/www.sulabs.net\/?p=197"},"modified":"2012-05-09T01:17:13","modified_gmt":"2012-05-08T17:17:13","slug":"iis%e6%8f%90%e7%a4%ba-session-state-has-created-a-session-id-but-cannot-save-it-because-the-response-was-already","status":"publish","type":"post","link":"https:\/\/www.sulabs.net\/?p=197","title":{"rendered":"IIS\u63d0\u793a Session state has created a session id, but cannot save it because the response was already..."},"content":{"rendered":"

\u8f6c\u8f7d\u81ea http:\/\/hi.baidu.com\/yandavid<\/a><\/p>\n

FIX: Session state has created a session id, but cannot save it because the response was already flushed by the application.<\/p>\n

\u5728\u4e8b\u4ef6\u67e5\u770b\u5668\u4e2d\uff0c\u4f60\u80fd\u770b\u5230\u8fd9\u6837\u7684\u63cf\u8ff0\u3002Because Session.SessionId is not called before the page is flushed, when the view decides that it needs to save some session information after the page has flushed, it\u2019s too late for the application to write the SessionId to the users cookie collection and so the above error is thrown.<\/p>\n

\u89e3\u6c7a\u65b9\u5f0f\u5982\u4e0b\u5728Global.cs\u52a0\u5165\u4ee3\u7801\uff1aSo easy. It works!<\/strong><\/p>\n

\u00a0<\/div>\n

voidSession_Start(objectsender,EventArgse) { \u00a0\u00a0 \/\/ Code that runs when a new session is started \u00a0\u00a0 stringsessionId=Session.SessionID; } Solutions\/tricks<\/strong> :<\/p>\n

Avoid flushing in Page_Load as already said<\/p>\n

Desactivate session state on the page (EnableSessionState)<\/p>\n

Use the SessionID trick before the flush<\/p>\n

Use Response.End() in place of .Flush() if you don't care about errors which can occur after your flush<\/p>\n

 <\/p>\n

Event code: 3005 Event message: An unhandled exception has occurred<\/strong>. Event time: 2011-8-19 10:21:03 Event time (UTC): 2011-8-19 2:21:03 Event ID: 39e2d6d5bf0c4b7db31aa0e4d2fc8127 Event sequence: 6 Event occurrence: 1 Event detail code: 0
\nApplication information: \u00a0\u00a0\u00a0 Application domain: \/LM\/W3SVC\/1147867452\/Root-1-129581940607186250 \u00a0\u00a0\u00a0 Trust level: Full \u00a0\u00a0\u00a0 Application Virtual Path: \/ \u00a0\u00a0\u00a0 Application Path: C:\\Web\\ \u00a0\u00a0\u00a0 Machine name: MRTEST-WTUISY3 Process information: \u00a0\u00a0\u00a0 Process ID: 2516
\nProcess name: w3wp.exe \u00a0\u00a0\u00a0 Account name: NT AUTHORITY\\NETWORK SERVICE Exception information: \u00a0\u00a0\u00a0 Exception type: HttpException<\/strong> \u00a0\u00a0\u00a0 Exception message: Session state has created a session id, but cannot save it because the response was already flushed by the application. <\/strong>\u00a0\u00a0 at System.Web.SessionState.SessionIDManager.SaveSessionID(HttpContext context, String id, Boolean& redirected, Boolean& cookieAdded) \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.CreateSessionId() \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.DelayedGetSessionId() \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.ReleaseStateGetSessionID() \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.OnReleaseState(Object source, EventArgs eventArgs) \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.OnEndRequest(Object source, EventArgs eventArgs) \u00a0\u00a0 at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() \u00a0\u00a0 at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)<\/p>\n

Request information: \u00a0\u00a0\u00a0 Request URL: http:\/\/127.0.0.1:8090\/?tag\/im \u00a0\u00a0\u00a0 Request path: \/index.aspx \u00a0\u00a0\u00a0 User host address: 192.168.68.45 \u00a0\u00a0\u00a0 User:\u00a0 \u00a0\u00a0\u00a0 Is authenticated: False \u00a0\u00a0\u00a0 Authentication Type:\u00a0 \u00a0\u00a0\u00a0 Thread account name: NT AUTHORITY\\NETWORK SERVICE
\nThread information: \u00a0\u00a0\u00a0 Thread ID: 1 \u00a0\u00a0\u00a0 Thread account name: NT AUTHORITY\\NETWORK SERVICE \u00a0\u00a0\u00a0 Is impersonating: False \u00a0\u00a0\u00a0 Stack trace:\u00a0\u00a0\u00a0 at System.Web.SessionState.SessionIDManager.SaveSessionID(HttpContext context, String id, Boolean& redirected, Boolean& cookieAdded) \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.CreateSessionId() \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.DelayedGetSessionId() \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.ReleaseStateGetSessionID() \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.OnReleaseState(Object source, EventArgs eventArgs) \u00a0\u00a0 at System.Web.SessionState.SessionStateModule.OnEndRequest(Object source, EventArgs eventArgs) \u00a0\u00a0 at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() \u00a0\u00a0 at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)<\/p>\n

ASP.NET Session\u8be6\u89e3<\/strong><\/p>\n

\u5f53\u7528\u6237\u5728 Web \u5e94\u7528\u7a0b\u5e8f\u4e2d\u5bfc\u822aASP.NET \u9875\u65f6\uff0cASP.NET \u4f1a\u8bdd\u72b6\u6001\u4f7f\u60a8\u80fd\u591f\u5b58\u50a8\u548c\u68c0\u7d22\u7528\u6237\u7684\u503c\u3002HTTP \u662f\u4e00\u79cd\u65e0\u72b6\u6001\u534f\u8bae\u3002\u8fd9\u610f\u5473\u7740Web \u670d\u52a1\u5668\u4f1a\u5c06\u9488\u5bf9\u9875\u9762\u7684\u6bcf\u4e2aHTTP \u8bf7\u6c42\u4f5c\u4e3a\u72ec\u7acb\u7684\u8bf7\u6c42\u8fdb\u884c\u5904\u7406\u3002\u670d\u52a1\u5668\u4e0d\u4f1a\u4fdd\u7559\u4ee5\u524d\u7684\u8bf7\u6c42\u8fc7\u7a0b\u4e2d\u6240\u4f7f\u7528\u7684\u53d8\u91cf\u503c\u7684\u4efb\u4f55\u4fe1\u606f\u3002<\/p>\n

ASP.NET \u4f1a\u8bdd\u72b6\u6001\u5c06\u6765\u81ea\u9650\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u7684\u540c\u4e00\u6d4f\u89c8\u5668\u7684\u8bf7\u6c42\u6807\u8bc6\u4e3a\u4e00\u4e2a\u4f1a\u8bdd\uff0c\u5f53\u6bcf\u4e2a\u7528\u6237\u9996\u6b21\u4e0e\u8fd9\u53f0\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\u65f6\uff0c\u4ed6\u5c31\u4e0e\u8fd9\u4e2a\u670d\u52a1\u5668\u5efa\u7acb\u4e86\u4e00\u4e2aSession\uff0c\u540c\u65f6\u670d\u52a1\u5668\u4f1a\u81ea\u52a8\u4e3a\u5176\u5206\u914d\u4e00\u4e2aSessionID\uff0c\u7528\u4ee5\u6807\u8bc6\u8fd9\u4e2a\u7528\u6237\u7684\u552f\u4e00\u8eab\u4efd\u3002Session\u63d0\u4f9b\u7528\u4e8e\u5728\u8be5\u4f1a\u8bdd\u6301\u7eed\u671f\u95f4\u5185\u4fdd\u7559\u53d8\u91cf\u503c\u7684\u65b9\u6cd5\u3002<\/strong>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5c06\u4e3a\u6240\u6709 ASP.NET \u5e94\u7528\u7a0b\u5e8f\u542f\u7528ASP.NET \u4f1a\u8bdd\u72b6\u6001.\u4e3aASP.NET \u5e94\u7528\u7a0b\u5e8f\u542f\u7528\u4f1a\u8bdd\u72b6\u6001\u65f6\uff0c\u5c06\u68c0\u67e5\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6bcf\u4e2a\u9875\u9762\u8bf7\u6c42\u662f\u5426\u6709\u6d4f\u89c8\u5668\u53d1\u9001\u7684 SessionID \u503c\u3002\u5982\u679c\u672a\u63d0\u4f9b\u4efb\u4f55 SessionID \u503c\uff0c\u5219 ASP.NET \u5c06\u542f\u52a8\u4e00\u4e2a\u65b0\u4f1a\u8bdd\uff0c\u5e76\u5c06\u8be5\u4f1a\u8bdd\u7684 SessionID \u503c\u968f\u54cd\u5e94\u4e00\u8d77\u53d1\u9001\u5230\u6d4f\u89c8\u5668\u3002System.Web.SessionState.HttpSessionState.SessionID \u503c\u90fd\u4ee5\u660e\u6587\u7684\u5f62\u5f0f\u53d1\u9001<\/strong>\u3002<\/p>\n

\u4f1a\u8bdd\u53d8\u91cf\u53ef\u4ee5\u662f\u4efb\u4f55\u6709\u6548\u7684.NET Framework \u7c7b\u578b, \u6ce8\u610f\uff1a\u5f53\u4f7f\u7528InProc \u4ee5\u5916\u7684\u4f1a\u8bdd\u72b6\u6001\u6a21\u5f0f\u65f6\uff0c\u4f1a\u8bdd\u53d8\u91cf\u7c7b\u578b\u5fc5\u987b\u4e3a\u57fa\u5143 .NET \u7c7b\u578b\u6216\u53ef\u5e8f\u5217\u5316\u7684\u7c7b\u578b\u3002\u8fd9\u662f\u56e0\u4e3a\u4f1a\u8bdd\u53d8\u91cf\u503c\u5b58\u50a8\u5728\u5916\u90e8\u6570\u636e\u5b58\u50a8\u533a\u4e2d\u3002<\/strong><\/p>\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cSessionID \u503c\u5b58\u50a8\u5728 Cookie \u4e2d\u3002\u4f46\u4e5f\u53ef\u4ee5\u5c06\u5e94\u7528\u7a0b\u5e8f\u914d\u7f6e\u4e3a\u5728\u201c\u65e0 Cookie\u201d\u4f1a\u8bdd\u7684 URL \u4e2d\u5b58\u50a8 SessionID \u503c\u3002\u53ea\u8981\u4e00\u76f4\u4f7f\u7528\u76f8\u540c\u7684 SessionID \u503c\u6765\u53d1\u9001\u8bf7\u6c42\uff0c\u4f1a\u8bdd\u5c31\u88ab\u89c6\u4e3a\u6d3b\u52a8\u7684\u3002\u5982\u679c\u7279\u5b9a\u4f1a\u8bdd\u7684\u8bf7\u6c42\u95f4\u9694\u8d85\u8fc7\u6307\u5b9a\u7684\u8d85\u65f6\u503c\uff08\u4ee5\u5206\u949f\u4e3a\u5355\u4f4d\uff09\uff0c\u5219\u8be5\u4f1a\u8bdd\u88ab\u89c6\u4e3a\u5df2\u8fc7\u671f\u3002\u4f7f\u7528\u8fc7\u671f\u7684 SessionID \u503c\u53d1\u9001\u7684\u8bf7\u6c42\u5c06\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u4f1a\u8bdd\u3002<\/p>\n

.NET\u63d0\u4f9b\u4e865\u79cd\u4fdd\u5b58Seission\u7684\u65b9\u5f0f:<\/p>\n\n\n\n\n\n\n\n\n
\u65b9\u5f0f\u540d\u79f0<\/td>\n\u5b58\u50a8\u65b9\u5f0f<\/td>\n\u6027\u80fd<\/td>\n<\/tr>\n
Off<\/td>\n\u8bbe\u7f6e\u4e3a\u4e0d\u4f7f\u7528Session\u529f\u80fd<\/td>\n\u65e0<\/td>\n<\/tr>\n
InProc<\/td>\n\u8bbe\u7f6e\u4e3a\u5c06Session\u5b58\u50a8\u5728\u8fdb\u7a0b\u5185\uff0c\u5c31\u662fASP\u4e2d\u7684\u5b58\u50a8\u65b9\u5f0f\uff0c\u8fd9\u662f\u9ed8\u8ba4\u503c\u3002<\/td>\n\u6027\u80fd\u6700\u9ad8<\/td>\n<\/tr>\n
StateServer<\/td>\n\u8bbe\u7f6e\u4e3a\u5c06Session\u5b58\u50a8\u5728\u72ec\u7acb\u7684\u72b6\u6001\u670d\u52a1\u4e2d\u3002\u901a\u5e38\u662faspnet_state.exe\u8fdb\u7a0b.<\/td>\n\u6027\u80fd\u635f\u593110-15%<\/td>\n<\/tr>\n
SQLServer<\/td>\n\u8bbe\u7f6e\u5c06Session\u5b58\u50a8\u5728SQL Server\u4e2d\u3002<\/td>\n\u6027\u80fd\u635f\u593110-20%<\/td>\n<\/tr>\n
Customer<\/td>\n\u81ea\u5b9a\u5236\u7684\u5b58\u50a8\u65b9\u6848<\/td>\n\u7531\u5b9e\u73b0\u65b9\u5f0f\u786e\u5b9a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\u4f7f\u7528SqlServer\u6a21\u5f0f\u642d\u5efaSession\u670d\u52a1\u5668<\/strong><\/p>\n

(1)\u670d\u52a1\u5668\u7aef\u914d\u7f6e<\/p>\n

\u4f7f\u7528SqlServer\u6a21\u5f0f\u642d\u5efaSession\u670d\u52a1\u5668\u7aef\u6709\u4e24\u79cd\u65b9\u5f0f. ASP.NET 1.0\u548c1.1\u7248\u672c\u8bf7\u4f7f\u7528\u65b9\u5f0fa, 2.0\u5373\u4ee5\u4e0a\u7248\u672c\u8bf7\u4f7f\u7528\u65b9\u5f0fb.<\/p>\n

a.\u4f7f\u7528SQL\u6587\u4ef6\u521b\u5efaSession\u6570\u636e\u5e93<\/p>\n

\u5728ASP.NET 1.0\u548c1.1 \u7248\u672c\u4e2d, \u53ea\u80fd\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f.\u5bf9\u4e8e2.0\u53ca\u5176\u4ee5\u4e0a\u7248\u672c,\u8bf7\u4f7f\u7528aspnet_regsql.exe\u5de5\u5177.(\u5f53\u7136\u6b64\u65b9\u6cd5\u4e5f\u901a\u75282.0\u7248\u672c)<\/p>\n

.net\u63d0\u4f9b\u4e86\u6570\u636e\u5e93\u5b89\u88c5\u811a\u672c,\u53ef\u4ee5\u5728\u673a\u5668\u7684windows\u6587\u4ef6\u5939\u4e2d\u627e\u5230:<\/p>\n

C:\\WINDOWS\\Microsoft.NET\\Framework\\v2.0.50727\\ InstallSqlState.sql<\/p>\n

C:\\WINDOWS\\Microsoft.NET\\Framework\\v2.0.50727\\ InstallSqlStateTemplate.sql<\/p>\n

\u6839\u636eASP.NET\u7684\u7248\u672c\u4e0d\u540c, \u9700\u8981\u4f7f\u7528\u4e0d\u540c\u7684SQL\u811a\u672c. ASP.NET\u4e3b\u8981\u67091.1\u548c2.0\u4e24\u4e2a\u7248\u672c,\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u7248\u672c\u6587\u4ef6\u5939\u627e\u5230\u8fd9\u4e24\u4e2aSQL.<\/p>\n

InstallSqlState.sql \u662f\u521b\u5efa\u9ed8\u8ba4\u540d\u79f0\u7684\u6570\u636e\u5e93\"[ASPState]\".\u6b64SQL\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884c.<\/p>\n

InstallSqlStateTemplate.sql \u53ef\u4ee5\u4f7f\u7528\u81ea\u5df1\u6307\u5b9a\u7684\u6570\u636e\u5e93\u4fdd\u5b58\u6570\u636e.\u6b64SQL\u9700\u8981\u81ea\u5df1\u4fee\u6539\u540e\u8fd0\u884c, \u6253\u5f00SQL\u6587\u4ef6\u5c06\u5176\u4e2d [DatabaseNamePlaceHolder] \u66ff\u6362\u4e3a\u81ea\u5df1\u6307\u5b9a\u7684\u6570\u636e\u5e93\u540d\u79f0.<\/p>\n

\u6267\u884cinstallsqlstate.sql\u65f6\u4e0d\u9700\u8981\u6307\u5b9a\u6570\u636e\u5e93,\u53ef\u4ee5\u5728\u4efb\u610f\u6570\u636e\u5e93\u4e0a\u6267\u884c.\u6b64SQL\u4f1a\u81ea\u5df1\u521b\u5efa\u65b0\u7684\u6570\u636e\u5e93<\/p>\n

b. \u4f7f\u7528aspnet_regsql.exe\u5de5\u5177<\/p>\n

ASP.NET 2.0\u7248\u672c\u540e\u5fae\u8f6f\u63d0\u4f9b\u4e86aspnet_regsql.exe\u5de5\u5177\u53ef\u4ee5\u65b9\u4fbf\u7684\u914d\u7f6eSession\u6570\u636e\u5e93.\u8be5\u5de5\u5177\u4f4d\u4e8e Web \u670d\u52a1\u5668\u4e0a\u7684\"\u7cfb\u7edf\u6839\u76ee\u5f55\\Microsoft.NET\\Framework\\\u7248\u672c\u53f7\"\u6587\u4ef6\u5939\u4e2d.<\/p>\n

\u4f7f\u7528\u4e3e\u4f8b:<\/p>\n

aspnet_regsql.exe -S . -U sa -P 123456 -ssadd -sstype p<\/p>\n

-S\u53c2\u6570:\u8868\u793a\u6570\u636e\u5e93\u5b9e\u4f8b\u540d\u79f0. \u53ef\u4ee5\u7528\".\"\u8868\u793a\u672c\u673a.<\/p>\n

-U\u548c-P\u53c2\u6570:\u8868\u793a\u7528\u6237\u540d\u548c\u5bc6\u7801.<\/p>\n

-E\u53c2\u6570: \u53ef\u4ee5\u518d-U \u2013P \u4e0e -E\u4e2d\u9009\u62e9\u4e00\u7ec4. \u2013E\u8868\u793a\u4ee5\u5f53\u524d\u7cfb\u7edf\u7528\u6237\u901a\u8fc7windows\u8eab\u4efd\u9a8c\u8bc1\u767b\u5f55\u6570\u636e\u5e93<\/a>, -U -P\u5219\u662f\u4f7f\u7528SqlServer\u7528\u6237\u767b\u5f55\u6570\u636e\u5e93<\/a>.<\/p>\n

-ssadd \/ \u2013ssremove \u53c2\u6570: -ssadd\u8868\u793a\u662f\u6dfb\u52a0Session\u6570\u636e\u5e93, -ssremove\u8868\u793a\u79fb\u9664Session\u6570\u636e\u5e93.<\/p>\n

sstype \u53c2\u6570:<\/p>\n

 <\/p>\n\n\n\n\n\n\n
\u9009\u9879<\/td>\n\u8bf4\u660e<\/td>\n<\/tr>\n
t<\/td>\n\u5c06\u4f1a\u8bdd\u6570\u636e\u5b58\u50a8\u5230 SQL Server tempdb \u6570\u636e\u5e93\u4e2d\u3002\u8fd9\u662f\u9ed8\u8ba4\u8bbe\u7f6e\u3002\u5982\u679c\u5c06\u4f1a\u8bdd\u6570\u636e\u5b58\u50a8\u5230 tempdb \u6570\u636e\u5e93\u4e2d\uff0c\u5219\u5728\u91cd\u65b0\u542f\u52a8 SQL Server \u65f6\u5c06\u4e22\u5931\u4f1a\u8bdd\u6570\u636e\u3002<\/td>\n<\/tr>\n
p<\/td>\n\u5c06\u4f1a\u8bdd\u6570\u636e\u5b58\u50a8\u5230 ASPState \u6570\u636e\u5e93\u4e2d\uff0c\u800c\u4e0d\u662f\u5b58\u50a8\u5230 tempdb \u6570\u636e\u5e93\u4e2d\u3002<\/td>\n<\/tr>\n
c<\/td>\n\u5c06\u4f1a\u8bdd\u6570\u636e\u5b58\u50a8\u5230\u81ea\u5b9a\u4e49\u6570\u636e\u5e93\u4e2d\u3002\u5982\u679c\u6307\u5b9a c \u9009\u9879\uff0c\u5219\u8fd8\u5fc5\u987b\u4f7f\u7528 -d \u9009\u9879\u5305\u62ec\u81ea\u5b9a\u4e49\u6570\u636e\u5e93\u7684\u540d\u79f0\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

 <\/p>\n

(2)Session\u5ba2\u6237\u7aef\u8bbe\u7f6e<\/p>\n

\u6b64\u623f\u662f\u540c\u6837\u9700\u8981Web\u5e94\u7528\u7a0b\u5e8f\u4fee\u6539Web.Config\u4e2d\u7684\u8282\u70b9.\u5982\u679c\u4f7f\u7528\u9ed8\u8ba4\u7684\u6570\u636e\u5e93(ASPState\u5e93), \u5219\u914d\u7f6e\u5982\u4e0b:<\/p>\n

 <\/p>\n

\n
<sessionState mode=\"SQLServer\" sqlConnectionString=\"server=192.168.9.151; uid=sa; pwd=123456;\"\/><\/pre>\n<\/div>\n
 <\/p>\n
 <\/p>\n
\u5982\u679c\u4f7f\u7528\u4e86\u81ea\u5b9a\u4e49\u7684\u6570\u636e\u5e93\u540d\u79f0,\u5219\u8fd8\u9700\u8981\u5236\u5b9aallowCustomSqlDatabase\u5c5e\u6027\u5e76\u5728\u6570\u636e\u5e93\u8fde\u63a5\u4e32\u4e2d\u6307\u5b9a\u6570\u636e\u5e93:<\/p>\n
 <\/p>\n
\n
<sessionState mode=\"SQLServer\" allowCustomSqlDatabase=\"true\" sqlConnectionString=\"server=192.168.9.151; DataBase=MyAspState;uid=sa; pwd=123456;\" \/><\/pre>\n<\/div>\n
 <\/p>\n
 <\/p>\n
 \u4f7f\u7528\u7ecf\u9a8c\u4e0e\u6280\u5de7\u603b\u7ed3 <\/strong><\/p>\n
\u4e0b\u9762\u662fSessionID, Session_End\u65f6\u95f4, StatServer\u6a21\u5f0f \u548c SqlServer\u6a21\u5f0f\u7684\u5404\u79cd\u7ecf\u9a8c\u548c\u6280\u5de7\u603b\u7ed3.<\/p>\n
(1)StateServer\u6a21\u5f0f:<\/p>\n
1.\u5728web farm\u4e2d\uff0c\u8bf7\u786e\u8ba4\u5728\u6240\u6709\u7684web\u670d\u52a1\u5668\u4e0a\u6709\u76f8\u540c\u7684<\/p>\n
2. \u8981\u4fdd\u5b58\u5728Session\u4e2d\u7684\u5bf9\u8c61\u662f\u53ef\u5e8f\u5217\u5316\u7684\u3002<\/p>\n
3.\u4e3a\u4e86\u5728web farm\u4e2d\u7684\u4e0d\u540cweb\u670d\u52a1\u5668\u4e0a\u7ef4\u62a4session state\uff0cIIS Metabase\u4e2d\u7684\u7f51\u7ad9\u5e94\u7528\u7a0b\u5e8f\u8def\u5f84(\u5982\\LM\\W3SVC\\2)\u5e94\u8be5\u5728\u6240\u6709\u7684\u670d\u52a1\u5668\u4e0a\u4fdd\u6301\u4e00\u81f4(\u5927\u5c0f\u5199\u654f\u611f).<\/p>\n
4. ASP.NET\u5904\u7406Session\u662f\u5728Machine.Config\u4e2d\u914d\u7f6e\u7684HttpModuel\u6a21\u5757, \u5728.NET\u7684\u5b89\u88c5\u76ee\u5f55\u4e0b\u7684Config\u6587\u4ef6\u5939\u4e2d, \u67e5\u770bWeb.Config(1.1\u7248\u672c\u662f\u5728Machine.Config):<\/p>\n
\u786e\u8ba4\u6b64\u6a21\u5757\u662f\u5426\u5b58\u5728.<\/p>\n
5.StateServer\u4e0d\u652f\u6301\u8d1f\u8f7d\u5747\u8861, \u6240\u4ee5\u5982\u679c\u5927\u5e76\u53d1\u63a8\u8350\u4f7f\u7528SqlServer\u6a21\u5f0f, \u53ef\u4ee5\u4eab\u53d7\u5230SqlServer\u7684\u9ad8\u6027\u80fd\u548c\u5b89\u5168\u6027.\u867d\u7136\u5b58\u50a8\u6548\u7387\u4f1a\u6709\u4e0b\u964d.<\/p>\n
6.\u9700\u8981\u8ba9\u6240\u6709\u673a\u5668\u7684MachineKey\u76f8\u540c.\u5728Machine.Config\u4e2d\u914d\u7f6e:<\/p>\n
 <\/p>\n
\n
<machineKey validationKey=\"1234567890123456789012345678901234567890AAAAAAAAAA\" decryptionKey=\"123456789012345678901234567890123456789012345678\" validation=\"SHA1\" decryption=\"Auto\"\/><\/pre>\n<\/div>\n
 <\/p>\n
 <\/p>\n
(2)SqlServer\u6a21\u5f0f:<\/p>\n
1. \u8981\u4fdd\u5b58\u5728Session\u4e2d\u7684\u5bf9\u8c61\u662f\u53ef\u5e8f\u5217\u5316\u7684\u3002<\/p>\n
2. \u5982\u679c\u4f7f\u7528\u4e86\u9ed8\u8ba4\u662f\u6570\u636e\u5e93, \u5219\u5728\u5ba2\u6237\u7aef\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u5e93\u94fe\u63a5\u5b57\u7b26\u4e32\u7684\u7528\u6237,\u9700\u8981\u62e5\u6709ASPState\u548ctempdb\u4e24\u4e2a\u5e93\u7684dbowner\u6743\u9650.<\/p>\n
3. \u5728SQLServer\u6a21\u5f0f\u4e0b\uff0csession\u8fc7\u671f\u662f\u7531SQL Agent\u4f7f\u7528\u4e00\u4e2a\u6ce8\u518c\u4efb\u52a1\u5b8c\u6210\u7684\uff0c\u8981\u786e\u8ba4SQL Agent\u5df2\u7ecf\u8fd0\u884c\u3002\u5426\u5219\u65e0\u6cd5\u6e05\u7406\u8fc7\u671f\u7684Session\u6570\u636e, \u4f1a\u5bfc\u81f4\u6570\u636e\u5e93\u6570\u636e\u4e00\u76f4\u589e\u52a0.<\/p>\n
4. \u5982\u679c\u4f7f\u7528SqlServer\u6a21\u5f0f\u65f6, \u5bf9\u4e8eWeb\u573a\u4e2d\u7684\u5404\u670d\u52a1\u5668\u7684 ASP.NET \u5e94\u7528\u7a0b\u5e8f\u8def\u5f84\u5fc5\u987b\u662f\u76f8\u540c\u7684\u3002\u8bf7\u5728 IIS \u914d\u7f6e\u6570\u636e\u5e93\u4e2d\u5bf9 Web \u573a\u4e2d\u7684\u6240\u6709 Web \u670d\u52a1\u5668\u8fdb\u884c Web \u7ad9\u70b9\u7684\u5e94\u7528\u7a0b\u5e8f\u8def\u5f84\u540c\u6b65\u3002\u5927\u5c0f\u5199\u4e00\u5b9a\u8981\u76f8\u540c\uff0c\u56e0\u4e3a Web \u7ad9\u70b9\u7684\u5e94\u7528\u7a0b\u5e8f\u8def\u5f84\u662f\u533a\u5206\u5927\u5c0f\u5199\u7684\u3002<\/p>\n
5.\u9700\u8981\u8ba9\u6240\u6709\u673a\u5668\u7684MachineKey\u76f8\u540c.\u5728Machine.Config\u4e2d\u914d\u7f6e:<\/p>\n
 <\/p>\n
\n
<machineKey validationKey=\"1234567890123456789012345678901234567890AAAAAAAAAA\" decryptionKey=\"123456789012345678901234567890123456789012345678\" validation=\"SHA1\" decryption=\"Auto\" \/><\/pre>\n<\/div>\n
 <\/p>\n
 <\/p>\n
(3)Session:<\/p>\n
1. \u4e0d\u80fd\u76f4\u63a5\u901a\u8fc7Session\u670d\u52a1\u5668\u5728ASP.NET\u548cASP\u4e4b\u95f4\u5171\u4eabSession. \u8bf7\u4f7f\u7528\u5fae\u8f6f\u63d0\u4f9b\u7684\u89e3\u51b3\u65b9\u6848:<\/p>\n
http:\/\/msdn.microsoft.com\/zh-cn\/library\/aa479313.aspx<\/p>\n
2. \u5728\u4e0d\u540c\u7684\u5e94\u7528\u7a0b\u5e8f\u6216\u4e00\u4e2a\u7f51\u7ad9\u7684\u4e0d\u540c\u865a\u62df\u76ee\u5f55\u4e4b\u95f4\u65e0\u6cd5\u5171\u4eabSession<\/p>\n
3. Session\u7684\u8fc7\u671f\u65f6\u95f4\u662f\u6ed1\u52a8\u65f6\u95f4.<\/p>\n
4. Session\u5b58\u50a8.NET\u81ea\u5e26\u7684\u503c\u7c7b\u578b\u6027\u80fd\u6700\u4f18. \u5b58\u50a8\u5bf9\u8c61\u4f1a\u964d\u4f4e\u6027\u80fd.<\/p>\n
(4)SessionID:<\/p>\n
1.SessionID \u8fd8\u53ef\u4ee5\u4fdd\u5b58\u5728URL\u4e0a, \u8bbe\u7f6eWeb.Config\u6587\u4ef6\u4e2d\u7684System.Web\/sessionState\u8282\u70b9\u7684Cookiesless\u5c5e\u6027\u5373\u53ef:<\/p>\n
2. \u4e00\u822c\u5728Session\u8d85\u65f6\u6216\u5220\u9664\u4e4b\u540e\uff0cSessionID\u4fdd\u6301\u4e0d\u53d8. \u56e0\u4e3aSession\u8fc7\u671f\u540e\u4f1a\u5728\u670d\u52a1\u5668\u7aef\u6e05\u9664\u6570\u636e, \u4f46\u662fSessionID\u4fdd\u5b58\u5728\u7528\u6237\u6d4f\u89c8\u5668\u4e0a, \u6240\u4ee5\u53ea\u8981\u6d4f\u89c8\u5668\u4e0d\u5173\u95ed\u5219HTTP\u5934\u4e2d\u7684SessionID\u4fdd\u6301\u4e0d\u53d8.<\/p>\n
3.\u5173\u95ed\u6d4f\u89c8\u5668\u540e\u518d\u8bbf\u95ee, SessionID\u4f1a\u4e0d\u540c.<\/p>\n
4.\u6bcf\u6253\u5f00\u4e00\u4e2aIE6\u7a97\u53e3, SessionID\u90fd\u4e0d\u540c, \u5728IE6\u4e2d\u4e24\u4e2a\u7a97\u53e3\u7684Session\u4e0d\u80fd\u5171\u4eab.<\/p>\n
5.FireFox\u7684\u6807\u7b7e\u9875\u548c\u65b0\u7684FireFox\u7a97\u53e3, SessionID\u90fd\u76f8\u540c, \u5728FF\u7684\u7a97\u53e3\u548c\u6807\u7b7e\u9875\u4e0aSession\u80fd\u5171\u4eab.<\/p>\n
6.\u5bf9\u4e8e\u5305\u542bFrameSet\u7684\u9875\u9762,\u6bd4\u5982\uff1a<\/p>\n
\u5982\u679c\u540e\u7f00\u540d\u662f.htm\u5e76\u4e14.htm\u6587\u4ef6\u6ca1\u6709\u4ea4\u7ed9ASP.NET\u7684ISAPI\u5904\u7406, \u90a3\u4e48\u6839\u636e\u670d\u52a1\u5668\u901f\u5ea6\u5728\u6bcf\u4e2aFrame\u9875\u9762\u751f\u6210\u4e0d\u540c\u7684SessionID, \u518d\u5237\u65b0\u540e\u76f8\u540c\u90fd\u7b49\u4e8e\u6700\u540e\u4e00\u4e2aSessionID.<\/p>\n
\u89e3\u51b3\u529e\u6cd5\u662f\u5c06.htm\u540e\u7f00\u6539\u6210.aspx, \u6216\u8005\u5c06.htm\u6587\u4ef6\u4ea4\u7ed9ASP.NET\u7684ISAPI\u5904\u7406.<\/p>\n
(5)Session_End\u4e8b\u4ef6:<\/p>\n
1. Session_End\u4ec5\u5728InProc\u6a21\u5f0f\u4e2d\u53ef\u7528<\/p>\n
2. \u5173\u95ed\u6d4f\u89c8\u5668\uff0cSession_End\u662f\u4e0d\u4f1a\u89e6\u53d1\u7684\u3002HTTP\u662f\u4e00\u79cd\u65e0\u72b6\u6001\u534f\u8bae\uff0c\u670d\u52a1\u5668\u6ca1\u6709\u529e\u6cd5\u77e5\u9053\u4f60\u7684\u6d4f\u89c8\u5668\u662f\u5426\u5df2\u7ecf\u5173\u95ed\u3002<\/p>\n
3. \u5f53Session\u56e0\u4e3a\u65f6\u95f4\u8fc7\u671f\u6216\u8c03\u7528Session.Abandon\u65f6\uff0cSession_End\u624d\u4f1a\u89e6\u53d1.Session.Clear()\u4ec5\u4ec5\u662f\u6e05\u9664\u6570\u636e\uff0c\u4f46\u6ca1\u6709\u5220\u9664session\u3002<\/p>\n
4. Session_End\u7531\u4e00\u4e2a\u540e\u53f0\u7ebf\u7a0b\u89e6\u53d1\uff0c\u4f7f\u7528\u5de5\u4f5c\u8005\u8fdb\u7a0b\u8d26\u53f7\u8fd0\u884c. \u6240\u4ee5\u7a0b\u5e8f\u4e0d\u4f1a\u901a\u77e5\u53d1\u751f\u7684\u9519\u8bef.<\/p>\n
5. \u5728Session_End\u8bbf\u95ee\u6570\u636e\u5e93\u8981\u8003\u8651\u6743\u9650\u95ee\u9898. Session_End\u662f\u7528\u8fd0\u884c\u5de5\u4f5c\u8005\u8fdb\u7a0b(aspnet_wp.exe)\u7684\u5e10\u53f7\u8fd0\u884c\u7684\uff0c\u8fd9\u4e2a\u8d26\u53f7\u53ef\u4ee5\u5728machine.config\u4e2d\u6307\u5b9a\u3002\u56e0\u6b64\uff0c\u5728Session_End\u4e2d\uff0c\u5982\u679c\u4f7f\u7528integrity security\u8fde\u63a5SQL\uff0c\u5b83\u5c06\u4f7f\u7528\u5de5\u4f5c\u8005\u8fdb\u7a0b\u8d26\u53f7\u8eab\u4efd\u8fde\u63a5\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5f15\u8d77\u767b\u5f55\u5931\u8d25.<\/p>\n
6.\u56e0\u4e3aSession_End\u662f\u6709\u72ec\u7acb\u7ebf\u7a0b\u51fa\u53d1\u7684, \u6240\u4ee5\u5728Session_End\u4e2d\u65e0\u6cd5\u4f7f\u7528HttpContext\u5bf9\u8c61(Request,Response,Server\u7b49\u5bf9\u8c61\u90fd\u5728HttpContext\u4e2d), \u5373\u65e0\u6cd5\u4f7f\u7528 Response.Redirect \u548cServer.Transfer\u7b49\u65b9\u6cd5.<\/p>\n
 <\/p>\n
\u4f60\u7684\u7ad9\u70b9\u6709\u88ab\u5ba2\u6237\u6295\u8bc9\u5f88\u6162\u5417\uff1f\u662f\u4e0d\u662f\u67e5\u4e86\u5f88\u591a\u904d\u8fd8\u662f\u6ca1\u6709\u5b8c\u5168\u89e3\u51b3\uff1f\u662f\u4e0d\u662f\u6570\u636e\u5e93\u6ca1\u6709\u53d1\u73b0\u5f02\u5e38\uff0cCPU\u4e5f\u6ca1\u6709\u5f02\u5e38\uff0c\u5185\u5b58\u5360\u7528\u91cf\u6ca1\u6709\u5f02\u5e38\uff0cGC\u8ba1\u6570\u6ca1\u6709\u5f02\u5e38\uff0c\u786c\u76d8IO\u4e5f\u6ca1\u6709\u5f02\u5e38\uff0c\u5e26\u5bbd\u6ca1\u6709\u5f02\u5e38\uff0c\u7ebf\u8def\u6ca1\u6709\u5f02\u5e38\uff0c\u6ca1\u6709\u4e22\u5305\uff0c\u4f46\u5c31\u662f\u88ab\u6295\u8bc9\uff1f\u800c\u4e14\u8fd8\u662f\u9635\u53d1\u6027\u7684\uff0c\u6709\u67d0\u4e2a\u7528\u6237\u6295\u8bc9\u6162\u7684\u65f6\u5019\uff0c\u4f60\u8bbf\u95ee\u5374\u5f88\u5feb\uff0c\u672c\u5730\u53c8\u590d\u73b0\u4e0d\u51fa\u6765\uff1f\u4eca\u5929\u4f60\u8bbf\u95ee\u4e86\u535a\u5ba2\u56ed\u771f\u662f\u592a\u5e78\u8fd0\u4e86\uff0c\u4e5f\u8bb8\u8fd9\u91cc\u5c31\u6709\u4f60\u60f3\u8981\u7684\u4e00\u4e2a\u7b54\u6848\u2014\u2014\u5047\u5982\u4f60\u7684\u7ad9\u70b9\u52a8\u6001\u5904\u7406\u4e86\u56fe\u7247\u6216\u8005\u5176\u4ed6\u539f\u672c\u4e0d\u4f1a\u52a8\u6001\u5904\u7406\u7684\u975e\u7f51\u9875\u8d44\u6e90\u7684\u8bdd\u3002\u6ca1\u60f3\u5230\u5427\uff0c\u8fd9\u662fSession\u60f9\u7684\u7978\uff01<\/p>\n
\u5982\u679c\u53ea\u5e0c\u671b\u7981\u7528\u5e94\u7528\u7a0b\u5e8f\u7684\u67d0\u4e2a\u7279\u5b9a\u9875\u7684\u4f1a\u8bdd\u72b6\u6001\uff0c\u5219\u53ef\u4ee5\u5c06 @ Page \u6307\u4ee4\u4e2d\u7684 EnableSessionState<\/a> \u503c\u8bbe\u7f6e\u4e3a false\u3002\u8fd8\u53ef\u5c06 EnableSessionState<\/a> \u503c\u8bbe\u7f6e\u4e3a ReadOnly \u4ee5\u63d0\u4f9b\u5bf9\u4f1a\u8bdd\u53d8\u91cf\u7684\u53ea\u8bfb\u8bbf\u95ee\uff0c\u5219\u5bf9\u53ea\u8bfb\u4f1a\u8bdd\u4fe1\u606f\u7684\u8bf7\u6c42\u4e0d\u4f1a\u5bfc\u81f4\u5bf9\u4f1a\u8bdd\u6570\u636e\u7684\u72ec\u5360\u9501\u5b9a\u3002\u3002\u5bf9\u4e8e\u81ea\u5b9a\u4e49\u7684\u4e00\u4e2a\u5b9e\u73b0\u4e86IHttpHandler\u63a5\u53e3\u7684\u7c7b\uff0c\u53ea\u8981\u540c\u65f6\u5b9e\u73b0IReadOnlySessionState\uff0c\u5373\u53ef\u8fbe\u5230EnableSessionState=\"ReadOnly\"\u7684\u6548\u679c\u3002\u5bf9\u4f1a\u8bdd\u6570\u636e\u7684\u53ea\u8bfb\u8bf7\u6c42\u53ef\u80fd\u4ecd\u9700\u7b49\u5230\u89e3\u9664\u7531\u4f1a\u8bdd\u6570\u636e\u7684\u8bfb\u5199\u8bf7\u6c42\u8bbe\u7f6e\u7684\u9501\u5b9a\u3002<\/p>\n
\u5e76\u53d1\u8bf7\u6c42\u548c\u4f1a\u8bdd\u72b6\u6001<\/h3>\n
\n
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\u8f6c\u8f7d\u81ea http:\/\/hi.baidu.com\/yandavid FIX: Se …<\/p>\n
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