Re: LookupDispatchAction default
Look at the sourc for LookupDispatchAction snippet below:
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
// Identify the request parameter containing the method name
String parameter = mapping.getParameter();
if (parameter == null) {
String message = messages.getMessage(dispatch.handler,
mapping.getPath());
throw new ServletException(message);
}
// Identify the string to lookup
String name = request.getParameter(parameter);
if (name == null) {
String message =
messages.getMessage(dispatch.parameter,
mapping.getPath(), parameter);
throw new ServletException(message);
}
It looks for the parameter's value and throws if the name is null so it
never gets a chance to get to unspecified in Dispatch action.
mas
Brian Sayatovic/AMIG wrote:
Well, I tried overriding unspecified and I still get the following (mind
you that I didn't change the parameter name yet) when I hit
/admin/list.do:
Error 500: Request[/admin/list] does not contain handler parameter
named submit
My unspecified method I simply overrode from DispatchAction to call my
normal refresh list method:
protected ActionForward unspecified(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response
) {
return this.refreshList(mapping, form, request, response);
}
While the JavaDocs do imply this should work, when I looked in the Struts
1.1 source, the execute method of LookupDispatchAction generates the erorr
message I see as soon as request.getParameter(parameterName) returns null.
In fact, I can find no reference to 'unspecified' anywhere in
LookupDispatchAction.
So I think there is a disconnect. Maybe LookupDispatchAction is broken
and should be fixed to also use 'unspecified', or maybe its JavaDocs
should explicitly state that it does not utilize the 'unspecified'
behavior of its parent class. Or, maybe I missed something and didn't
implement correctly?
Regards,
Brian.
Mark Lowe [EMAIL PROTECTED]
03/24/2004 09:21 AM
Please respond to Struts Users Mailing List
To: Struts Users Mailing List [EMAIL PROTECTED]
cc:
Subject:Re: LookupDispatchAction default
unspecified() is the method you want look at the javadoc.
you do need the method name though
/admin/list.do?method
I saw that using submit as the parameter name causes problems so i
wouldn't use that.
On 24 Mar 2004, at 15:16, Brian Sayatovic/AMIG wrote:
I'd like to be able to have someone hit my action, /admin/list.do,
without
having to specify a submit paramater. However, the action is a
subclass
of LookupDispatchAction whci requires that the request parameter be
supplied. Looking in the struts source code, it would be nice if the
LookupDispatchAction could fall back to a default or not consider
'null'
to be a bad value and just use 'null' as a key to the lookup Map. For
now, any link or redirect to the page must specify what I consider to
be
the default action -- refresh -- on the URL:
/admin/list/do?submit=Refresh.
Is there another way to do this? Is it worth suggesting that
LookupDispatchAction support a default or null mapping?
Regards,
Brian.
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--
Mark Shifman MD. Ph.D.
Yale Center for Medical Informatics
Phone (203)737-5219
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Re: blocking bookmarked actions
Thanks , I was using jakarta-struts-1.1-rc1 which did the nul parameter trapping. mas Wendy Smoak wrote: From: Mark Shifman [mailto:[EMAIL PROTECTED] Unfortunately LookupDispatchAction checks for the parameter an throws an error before it gets a chance to use unspecified(), but it should be easy enough to modify it and then override dispatchActions unspecified(). What version? I think unspecified works right at least since 1.2.0, probably before that. But you can use the fact that execute is always called first, so override execute and check for the parameter. If it's there, just call super.execute() and things will work, if it's not there, look up/construct an ActionForward and return that. Looking at some old code, that's what I used to do... The newer project doesn't have an execute method and it works fine when the parameter for a LookupDispatchAction is not in the request. -- Mark Shifman MD. Ph.D. Yale Center for Medical Informatics Phone (203)737-5219 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: File upload location
Deepak wrote: Hi, What is the default location of a file uploaded using html:file ? Can I upload it to one of the folders in my context path ? It goes someplace temporary. If you look at the src for the UploadAction example in Struts, it shows how to save the temporary file. I create a temporary dir with sessionCreated() in the HttpSessionListener ie myapp/temp/sessionID then you can get to it via session.getServletContext().getRealPath(temp) + /+ session.getId(); and create an outputstream that goes there. When the session is destroyed I remove the files and the dir myapp/temp/sessionID thanks Deepak -- Mark Shifman MD. Ph.D. Yale Center for Medical Informatics Phone (203)737-5219 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
blocking bookmarked actions
Suppose someone bookmarked an action such as /yourhost/yourapp/someAction.do and you really want them to only go through the html pages. How do your block or catch these actions and redirect them to the appropriate place? mas - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: blocking bookmarked actions
where do I do the blocking? The action I am having problems with is a LookupDispatchAction and I get this kind of error message javax.servlet.ServletException: Request[/RechartFiles] does not contain handler parameter named method org.apache.struts.actions.LookupDispatchAction.execute(LookupDispatchAction.java:199) ... Paul McCulloch wrote: You code code your app to always use http POST, but block GETs. This may not be suitable if you've already written the app though! Paul -Original Message- From: Mark Shifman [mailto:[EMAIL PROTECTED] Sent: 24 March 2004 18:17 To: Struts Users Mailing List Subject: blocking bookmarked actions Suppose someone bookmarked an action such as /yourhost/yourapp/someAction.do and you really want them to only go through the html pages. How do your block or catch these actions and redirect them to the appropriate place? mas - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: blocking bookmarked actions
Thanks. Unfortunately LookupDispatchAction checks for the parameter an throws an error before it gets a chance to use unspecified(), but it should be easy enough to modify it and then override dispatchActions unspecified(). mas Wendy Smoak wrote: From: Mark Shifman [mailto:[EMAIL PROTECTED] where do I do the blocking? The action I am having problems with is a LookupDispatchAction and I get this kind of error message javax.servlet.ServletException: Request[/RechartFiles] does not contain handler parameter named method org.apache.struts.actions.LookupDispatchAction.execute(LookupD ispatchAction.java:199) We were just talking about that earlier today... Are you using a version of LDA that has the 'unspecified' method inherited from Dispatch Action? Implementing that method will stop the errors, and you may not need to force them to go through the HTML page if you can do the default behavior with no user input. -- Mark Shifman MD. Ph.D. Yale Center for Medical Informatics Phone (203)737-5219 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: validation.xml multiple select
http://javaboutique.internet.com/tutorials/Struts11Val/ shows how to make a custom validator for multiple selects that worked for me mas Siamack wrote: Hello Everyone: I have a multiple select option as follows: select name=countries multiple=multiple size=4 option value=FA France /option option value=GR Germany/option option value=USA America /option /select in my struts-config.xml, I use a DynaValidatorForm as follows form-beans form-bean dynamic= true name= UserForm type= org.apache.struts.validator.DynaValidatorForm form-property name= username type= java.lang.String[] / . . . /form-bean /form-beans in my validation.xml I also have the following entry: field property=countries depends=required arg0 key=label.geographies/ /field . . The validation does not work when I select nothing, though the other fields such as checkboxes, textfields, etc are okay? It seems when nothing is selected an empty array of string of size 0 is returned rather than a null value. Is there any way that I can check for the length of string array to be 0 (nothing selected) or is there any other way to make this work. I would greatly appreciate your replies in advance. - Post your free ad now! Yahoo! Canada Personals -- Mark Shifman MD. Ph.D. Yale Center for Medical Informatics Phone (203)737-5219 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: FileUploading Error
I am using Mozilla 1.2.1. via redhat. How can I see what is passed without doing an autopsy on the request handler? mas Andrew Hill wrote: Hmmm. Sounds rather like a browser issue to me. You might want to see what is actually being passed in that request - if its actually a valid multipart request or not! I had a try in IE, but IE's file selector is too smart to allow selection of a folder as the upload file. Which browser are you using? -Original Message- From: Joe Germuska [mailto:[EMAIL PROTECTED] Sent: Tuesday, 17 February 2004 00:13 To: Struts Users Mailing List Subject: Re: FileUploading Error At 9:35 AM -0500 2/16/04, Mark Shifman wrote: In trying to bulletproof file uploading I noticed something odd. If I type some junk in the field for the file name and hit Submit, I get a file of size 0. I can deal with that. If I type in a directory name in my home directory (admittedly a dumb thing to type) nothing seems to happen and I get this error in my log file. ERROR 2004-02-13 14:09:18,679 handleRequest(CommonsMultipartRequestHandler.java:241) Failed to parse multipart request org.apache.commons.fileupload.FileUploadException: Processing of multipart/form-data request failed. Stream ended unexpectedly ... This error seems to be thrown before it even gets to my UploadAction. How do I catch this and tell the user the file typed in is invalid? In Javascript, the value of the form field is the path to the file; you might be able to apply a mask validation testing for a reasonable filename -- this is far from perfect, but may help. I use this as a cheap way to get around the lack of support for the accepts attribute -- I test to see if the file has a right extension using the mask validator. Just one thought... Joe -- Joe Germuska [EMAIL PROTECTED] http://blog.germuska.com Imagine if every Thursday your shoes exploded if you tied them the usual way. This happens to us all the time with computers, and nobody thinks of complaining. -- Jef Raskin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Mark Shifman MD. Ph.D. Yale Center for Medical Informatics Phone (203)737-5219 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
FileUploading Error
In trying to bulletproof file uploading I noticed something odd. If I type some junk in the field for the file name and hit Submit, I get a file of size 0. I can deal with that. If I type in a directory name in my home directory (admittedly a dumb thing to type) nothing seems to happen and I get this error in my log file. ERROR 2004-02-13 14:09:18,679 handleRequest(CommonsMultipartRequestHandler.java:241) Failed to parse multipart request org.apache.commons.fileupload.FileUploadException: Processing of multipart/form-data request failed. Stream ended unexpectedly ... This error seems to be thrown before it even gets to my UploadAction. How do I catch this and tell the user the file typed in is invalid? -- [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
