A long time ago I debugged an issue for some folks doing .NET
stuff, and this sounds familiar. The solution was that they had to
include the headers that real browsers send, and so that is when
JMeter began recording headers along with request info with the
proxy recorder.
I don't know if it's the "user-agent" header or "referrer" that .NET
looks for, but it solved the problem. If your problem is the same,
try recording your test case with the proxy recorder and leave the
HeaderManagers in.
Or, it could be something else :-)
On 27 Oct 2003 at 14:04, James Clark wrote:
> I am attempting to load test a simple ASP.NET application, which GETS a
> default login page and then POSTS login information back to that page,
> but I'm getting an exception from .NET that it doesn't like the
> __VIEWSTATE (hidden variable that .NET uses to track state of
form
> variables) data I'm posting. I'm pursuing a fix for this from the
.NET
> side, but my guess is that a fairly simple change will get JMeter
to
> handle __VIEWSTATE. Apparently, .NET does some verification
that the
> page hasn't been tampered with and I'm guessing that that check
is
> seeing some difference between what the initial GET request
receives and
> what I'm extracting and posting back. I don't see any difference
but
> it's a huge random string, so hard to tell.
>
> I'm using JMeter 1.9.1 with JDK 1.4 on WinXP. Any insights
welcome. TIA
>
> TestPlan looks like this:
>
> ThreadGroup (for now, 1 thread)
> |--UserParameters (__CSVRead's login info)
> |--HTTP Request Defaults
> |--HTTP Request (GET default login aspx page)
> |--Regex Extractor (extract the VIEWSTATE value: see below
for details)
> |--HTTP Request (POST login info UserParameters and
VIEWSTATE extracted
> info: see below for details)
> |--various listeners
>
>
> The regex:
> reference name: viewstate
> regular expression: name="__VIEWSTATE" value="(.*)"
> template: $0$
> match no: 1
> default value: ERROR
>
>
> the HTTP POST request:
> Name: __VIEWSTATE
> value: ${viewstate_g1}
> encoded?: false (I also try 'true' which gives a different
> exception, see below)
> include equals?: true
>
>
> The server responds:
>
> The viewstate is invalid for this page and might be corrupted.
> Exception Details: System.Web.HttpException: The viewstate is
invalid
> for this page and might be corrupted.
> [HttpException (0x80004005): The viewstate is invalid for this
page and
> might be corrupted.]
>
System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
+149
> System.Web.UI.Page.LoadPageViewState() +18
> System.Web.UI.Page.ProcessRequestMain() +423
>
>
>
> If I change the POST requests encoding to 'true' I get a different
> error--I think that the viewstate is already encoded and setting
this
> true scrambles it, so I just provide this to be complete.
>
> Index was outside the bounds of the array.
> [IndexOutOfRangeException: Index was outside the bounds of
the array.]
> omcct.defaultForm.Button1_Click(Object sender, EventArgs e)
in
> \\blah\default.aspx.vb:102
> System.Web.UI.WebControls.Button.OnClick(EventArgs e)
+108
>
>
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEv
entHandler.RaisePostBackEvent(String
> eventArgument) +57
>
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandle
r
> sourceControl, String eventArgument) +18
>
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection
postData) +33
> System.Web.UI.Page.ProcessRequestMain() +1277
>
>
> FWIW, I have followed M$' advice and tried turning off some
things on
> the server side (Page directives), to no avail:
> EnableViewState="false"
> EnableViewStateMAC="false"
>
> ###
>
>
>
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--
Michael Stover
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Yahoo IM: mstover_ya
ICQ: 152975688
AIM: mstover777
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