This has happened to me--still haven't found a good solution. If the browser is IE, under some circumstances it will post/get a request twice for (in my case) PDF files. This is apparently not a Struts issue. I would test your code under a different browser, and then a different container than Resin, to rule those out as problems.
The Sun forum on Servlets may also be of help. http://forum.java.sun.com/forum.jsp?forum=33 Glen > -----Original Message----- > From: Andrew Hill [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, September 18, 2002 11:44 PM > To: Struts Users Mailing List > Subject: RE: Some ActionClasses Are Invoked Twice, Why? > > > You say you know for a fact its not caused by double-clicking. > I presume therefore that you have confirmed that the actual > request is only > received by the server once ? > > -----Original Message----- > From: T. Wheeler [mailto:[EMAIL PROTECTED]] > Sent: Thursday, September 19, 2002 09:04 > To: Struts Users Mailing List > Subject: Some ActionClasses Are Invoked Twice, Why? > > > I have found a bug in a Struts application I am developing at > work, and > I am having trouble figuring out what might be causing it. I > will give > the brief overview below, and be happy to dive into as much detail as > might be needed. > > The problem: > I have started adding logging to several of my action classes and have > started noticing that some of them are being called twice in quick > succession. I know for a fact that it's not a user double-clicking to > submit a form; I can reproduce it (only some of the ActionClasses have > this problem, but they have it consistently. To help illustrate the > problem, I have an excerpt of the log below, showing that the > ActionClass was called twice: > > // the first time the action class was called > 16:41:11,897 - Checking required permissions > 16:41:11,898 - Starting performTask() method > 16:41:11,898 - performTask(): Got session attributes; > 16:41:11,900 - performTask(): Removing old contexts > 16:41:11,900 - performTask(): Calling getAvailableContexts() > 16:41:12,728 - performTask(): Got 2 contexts > 16:41:12,740 - performTask(): Adding LVBean[Example 1, 0001] > 16:41:12,741 - performTask(): Adding LVBean[Example 2, 0026] > 16:41:12,741 - performTask(): Setting roles vector > 16:41:12,742 - Ending performTask() method > > // the second time the action class was called, < 1 second later > 16:41:13,039 - Checking required permissions > 16:41:13,040 - Starting performTask() method > 16:41:13,040 - performTask(): Got session attributes; > 16:41:13,043 - performTask(): Removing old contexts > 16:41:13,044 - performTask(): Calling getAvailableContexts() > 16:41:13,853 - performTask(): Got 2 contexts > 16:41:13,854 - performTask(): Adding LVBean[Example 1, 0001] > 16:41:13,854 - performTask(): Adding LVBean[Example 2, 0026] > 16:41:13,855 - performTask(): Setting roles vector > 16:41:13,855 - Ending performTask() method > > Again, I will be happy to post code samples upon request, but I don't > want to clutter the issue quite yet. > > Struts Version- > I am using a Struts nightly build from December 2001, but I can > reproduce the problem under the most recent 1.1 beta of > Struts (which I > downloaded earlier today). > > The Server- > RedHat Linux 7.2, fully patched, running with Caucho > Resin-2.1.2 and Sun > JDK 1.3.1_04 (latest 1.3.1 JVM). I can reproduce this problem on > multiple machines with several different versions of Resin (up to > 2.1.4). > > Any ideas at what might be causing this, or how to diagnose it? > > Thanks in advance for any help or advice you can give. > > Tom > > > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
