Validation of viewstate MAC failed. 解决方法 _.NET

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Validation of viewstate MAC failed. 解决方法

2013/1/25 11:04:23 fhuan123 程序员俱乐部我要评论(0)

摘要：前段时间公司为了减轻服务器压力，对网页做了集群，分布在多台服务器，通过DNS轮回解析到各台服务器，结果页面只要打开停留到DNS解析到下一个地址，就会出现出下错误信息。ValidationofviewstateMACfailed.IfthisapplicationishostedbyaWebFarmorcluster,ensurethat<machineKey>
标签：方法 failed 解决方法解决 view ViewState Mac

前段时间公司为了减轻服务器压力，对网页做了集群，分布在多台服务器，通过DNS轮回解析到各台服务器，结果页面只要打开停留到DNS解析到下一个地址，就会出现出下错误信息。

Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.

Source Error:

The source code that generated
 this unhandled exception can only be shown when compiled in debug mode.
 To enable this, please follow one of the below steps, then request the 
URL:


1. Add a "Debug=true" directive at the top of the file that generated the error. Example:


??<%@ Page Language="C#" Debug="true" %>


or:


2) Add the following section to the configuration file of your application:


<configuration>

???<system.web>

???????<compilation debug="true"/>

???</system.web>

</configuration>


Note
 that this second technique will cause all files within a given 
application to be compiled in debug mode. The first technique will cause
 only that particular file to be compiled in debug mode.


Important:
 Running applications in debug mode does incur a memory/performance 
overhead. You should make sure that an application has debugging 
disabled before deploying into production scenario.

Stack Trace:


[HttpException (0x80004005): Unable to validate data.]
   System.Web.Configuration.MachineKeySection.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) +294
   System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +203

[ViewStateException: Invalid viewstate. 
	Client IP: 218.28.26.86
	Port: 45262
	User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; FDM)
	ViewState: 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...]

[HttpException (0x80004005): Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.]
   System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +267
   System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +282
   System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState) +4
   System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) +37
   System.Web.UI.HiddenFieldPageStatePersister.Load() +198
   System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +83
   System.Web.UI.Page.LoadAllState() +35
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7350
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +213
   System.Web.UI.Page.ProcessRequest() +86
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18
   System.Web.UI.Page.ProcessRequest(HttpContext context) +49
   ASP.admin_articleadd_aspx.ProcessRequest(HttpContext context) +4
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +358
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

解决方法：

解决方案(1)

处理页面增加

<%@ Page Language="C#"? enableViewStateMac="false" %>

解决方案(2)推荐
<machineKey validationKey="B8CEF0C74E23E7197FCC4C9E3617C0007D94D43C7F7A79C582C54B95D69B946DFD49CAF5AA72F9A8CA2CBA040A9DF64DC1DF90DAE1214AE4F1AB7FA56DD65C0D" decryptionKey="D7F1CE31847C4FB31EF51E14F3820D52B659AF8523FC932C03506CC075DB8B28" validation="SHA1" decryption="AES" />

http://support.microsoft.com/kb/829743/zh-cn

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