Question

我的网站每天都抛出以下异常，我找不到解决方案。我在网上做了很少的研究，这是我到目前为止所做的。将以下选项添加到aspx将无法解决问题。

ValidateRequest =“false”EnableEventValidation =“false” ViewStateEncryptionMode =“从不”EnableViewStateMac =“false”

此外，我的推介网址是正确的网址，我不知道它如何重定向两个（相同）参数。我的推荐页面中没有这样的链接。请帮忙。

错误日志

URL : http://www.abcd.com/company-details.aspx?com=asia-pacific-pte-ltd&com=asia-pacific-pte-ltd

referral URL : http://www.abcd.com/companies/asia-pacific-pte-ltd/

Inner Exception Type: System.Web.UI.ViewStateException

Inner Exception: Invalid viewstate. Client IP: 192.162.19.193 Port: 1966 User-Agent: Opera/9.80 (Windows NT 6.1; WOW64; MRA 6.0 (build 6001)) Presto/2.12.388 Version/12.11 ViewState: 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...

Inner Source: 

Exception Type: System.Web.HttpException

Exception: The state information is invalid for this page and might be corrupted.

Stack Trace: at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) at System.Web.UI.HiddenFieldPageStatePersister.Load() at System.Web.UI.Page.LoadPageStateFromPersistenceMedium() at System.Web.UI.Page.LoadAllState() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.exhibition_details_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\0f461847\442b0502\App_Web_bfjqxdef.20.cs:line 0 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

更新我通过从下面的链接压缩ViewState来修复错误 http://www.codeproject.com/Articles/14733/ViewState-Compression

并通过将原始方法替换为此来修复Base-64字符数组错误的无效长度。

protected override object LoadPageStateFromPersistenceMedium()
    {
        string viewState = Request.Form["__VSTATE"];
        viewState = viewState.Replace(" ", "+");

        int mod4 = viewState.Length % 4;
        if (mod4 > 0)
        {
            viewState += new string('=', 4 - mod4);
        }
        byte[] bytes = Convert.FromBase64String(viewState);
        bytes = Compressor.Decompress(bytes);
        LosFormatter formatter = new LosFormatter();
        return formatter.Deserialize(Convert.ToBase64String(bytes));
    }

感谢大家的帮助：）

Answer 1

我很抱歉，但您的网站没有任何内容，您需要尽快重新启用EventValidations。

通过发送许多测试an attempt to hack your site，您看到numbers with your ViewState trying to find your hash key。

IP you give have a big list of activity the last few days。

现在，可能导致此错误的替代方法是破坏ViewState。如果你有太大的ViewState，你可以compress it and split it。你也可以disable all the controls that not needed。您还可以添加log to see from inside what's is going on right on a base page。

Answer 2

是的，它也适合我

这里是vbnet

Compressor.vb

Imports System.IO
Imports System.IO.Compression
Public Class Compressor

Public Shared Function Compress(ByVal data() As Byte) As Byte()
    Dim output As MemoryStream = New MemoryStream
    Dim gzip As GZipStream = New GZipStream(output, CompressionMode.Compress, True)
    gzip.Write(data, 0, data.Length)
    gzip.Close()
    Return output.ToArray
End Function

Public Shared Function Decompress(ByVal data() As Byte) As Byte()
    Dim input As MemoryStream = New MemoryStream
    input.Write(data, 0, data.Length)
    input.Position = 0
    Dim gzip As GZipStream = New GZipStream(input, CompressionMode.Decompress, True)
    Dim output As MemoryStream = New MemoryStream
    Dim buff() As Byte = New Byte((64) - 1) {}
    Dim read As Integer = -1
    read = gzip.Read(buff, 0, buff.Length)

    While (read > 0)
        output.Write(buff, 0, read)
        read = gzip.Read(buff, 0, buff.Length)

    End While

    gzip.Close()
    Return output.ToArray
 End Function
End Class

并将其粘贴到default.aspx中它需要

Imports System.IO

  Protected Overrides Function LoadPageStateFromPersistenceMedium() As Object
    Dim viewState As String = Request.Form("__VSTATE")
    Dim bytes() As Byte = Convert.FromBase64String(viewState)
    bytes = Compressor.Decompress(bytes)
    Dim formatter As LosFormatter = New LosFormatter
    Return formatter.Deserialize(Convert.ToBase64String(bytes))
End Function

Protected Overrides Sub SavePageStateToPersistenceMedium(ByVal viewState As Object)
    Dim formatter As LosFormatter = New LosFormatter
    Dim writer As StringWriter = New StringWriter
    formatter.Serialize(writer, viewState)
    Dim viewStateString As String = writer.ToString
    Dim bytes() As Byte = Convert.FromBase64String(viewStateString)
    bytes = Compressor.Compress(bytes)
    ClientScript.RegisterHiddenField("__VSTATE", Convert.ToBase64String(bytes))
End Sub

System.Web.UI.ViewStateException，无效的viewstate

2 个答案: