RE: Templates Images
Using template:put tag show below is trying to put an image file as include into the JSP.template, then asking the JSP.template to compile. What you really want to display is the String '/images/example.gif'. So you have to specify a my.JSP that contained the text '/images/example.gif', therefore you would need to use a html img src=template:get or have the my.JSP file contain the html:img tag. If you only have a few images that can be displayed and depending on what you use to determine to display them, wrapping the img tags in logic:present tags might be a solution. -Aaron -Original Message- From: James Maggs [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 15, 2001 10:00 AM To: [EMAIL PROTECTED] Subject: Templates Images Hi There, I'm working on a Struts powered site right now and have come up against a bit of a problem. I'm using the templating tags to give my pages a uniform look and feel. However I'd like to be able to insert images into my template. I figured the best way would be as follows: template:insert template='/template.jsp' template:put name='image' content='/images/example.gif' direct='true' / /template:insert But this begs the question, how do you insert the content into the src attribute of the image tag? I suppose I could put the whole image tag into the template but I'd rather avoid embedding content in the above code. Can anyone suggest a best way forward? Many thanks, -James
RE: Struts Design Question
Yes you can do the add/edit all on the same form. If have a database generated code or key you can put that in a hidden field. When in the action examine the form or request obj to see if that key is there, if it is you have a modify, if not add the record. Have you page that lists the songs pass a the code/key as a parameter to the SongForm.jsp. Then you can use the jsp:useBean as follows: jsp:useBean id=SongForm class=com.mypackage.SongForm scope=request jsp:setProperty name=SongForm property=songKey param=songKey / /jsp:useBean Then to pre populate the form you can make a DataBase call in your form setSongKey() method and use the result to set the other values in the form. For a delete you can have a second form on the same page (with its own submit button) that has the songKey set into the SongDeleteForm and the submit is mapped to a DeleteAction that just uses the key to delete the record. I am new at the struts stuff myself, so these may not be the best ways to accomplish what you are trying to do, but I know it works. So anyone else please feel free to critique. Aaron -Original Message- From: Shriver, Ryan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 08, 2001 9:30 AM To: '[EMAIL PROTECTED]' Subject: Struts Design Question Hello all, I downloaded Struts last week and have enjoyed playing with it. I've come upon a design problem and I was hoping some folks on this list could help solve it. I've had no luck finding an answer in the mail archives. I want to maintain a list of songs. Through a web interface, I want to add a new song, edit information about an existing song (composer, artist, etc) and also delete a song. Under the covers this will do some sort of database insert, update and delete, respectively. The forms for adding a new song and editing an existing song are practically identical. They contain the same field names with the difference being edit pre-populates the fields with the existing values of a song whereas the fields are blank for add. Question #1: Can one ActionForm suffice for both add and edit form pages? My gut says yes, but I want to make sure. Actions. In the simplest scenario, I could create separate actions for all operations. I'd have AddSongAction, EditSongAction and DeleteSongAction classes each with their own logic in perform(). This would work, but there's something that bothers me about having three different classes performing operations on one entity. It seems like overkill. DispatchActions. I saw the post about using DispatchAction to have multiple methods in a single Action class. I really like this approach, as I could have insert, update and delete methods in my Action class. However, the input= attribute in the action mapping definition (in struts-config.xml) is shared for all of them. So if I have separate addsong.jsp and editsong.jsp form pages sharing the same Action, and a validation error occurs, Struts can only return to one (whatever input= is). So this won't work. Question #2: Is there a happy medium between these two approaches? One idea that I haven't worked through is using one songform.jsp page for add/edit/delete. Calling songform.jsp?method=add would produce a blank page for entering a new song. Songform.jsp?method=editid=1234 would populate the form with values from a song whose id = 1234. From here one could edit or delete the selected song. In Struts I'd use the DispatchAction to pass all add/edit/delete requests to one Action class. Because all were using the same form, the input= attribute problem above would be avoided. Question #3: Will this approach work? Can anyone offer a better solution for this problem? Thanks for the feedback. -ryan
Action Errors
Hello all, I did not find an example of the use of this ActionError method. If someone could point me to a good example or reply with one I would appreciate it. I just wasn't clear how the Object part of the method works. What object(s) can you use? How are they structured so they can replace values. How are those values to be replaced identified? Method: public ActionError(java.lang.String key, java.lang.Object value0) Construct an action error with the specified replacement values. Parameters: key - Message key for this error message value0 - First replacement value Thank you, Aaron
RE: Confirmation page
Sorry, every one just noticed the follow up on this thread, didn't see it in
th e 112 msgs I got this morning :)
Aaron Ravenberg
-Original Message-
From: Aaron Ravenberg [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 03, 2001 9:01 AM
To: [EMAIL PROTECTED]
Subject: RE: Confirmation page
If you can use JavaScript it would be the most simple solution. It seems
that writing a confirm form and action to accommodate every page you want
this functionality in might be a little much when you compare it to a few
lines of JavaScript.
As mentioned in another reply you can use the bean:message with in the
JavaScript code.
Aaron Ravenberg
-Original Message-
From: Liu, Xin [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 02, 2001 6:16 PM
To: [EMAIL PROTECTED]
Subject: RE: Confirmation page
Hi,
I think you misunderstood the scope of request. I think you have the
following workflow diagram:
first_page(browser)--Server_process1--Confirmation_page(browser)--Server_
process2
I think your Java code is running during Server_process1, and it puts your
first_page's information into your bean, which is in the request scope.
After the control is transfered to Confirmation_page. All information in
the request scope is destroyed. So when you come back to Server_process2, it
will tell you: Cannot find the form bean in the request scope.
You have several ways to keep the formBean information available in
Server_process2.
1. Make the FormBean's scope be Session.
2. Put the information of the formBean as hidden fields in
Confirmation_page.
Hope this will be helpful.
Xin
-Original Message-
From: Yuriy Zubarev [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 02, 2001 2:37 PM
To: [EMAIL PROTECTED]
Subject: Confirmation page
Hello everyone,
I have a form (in request scope) with submit and cancel
buttons and after pushing either of them I should display
a confirmation dialog (Are you sure?) and depending on user's
choice I have to perform the actual action 'submit' or 'cancel'
if user clicks 'yes' and have to return to the same page with
form if user clicks 'no'. The need of this confirmation routine
is questionable but this is not the point in this case, the point
is how to preserve everything you have in your request while
making this trip.
I tried to do this in my action which calls confirmation
page and confirmation page itself (as scriplet):
java.util.Enumeration enum = request.getAttributeNames();
while (enum.hasMoreElements()) {
String atName = (String) enum.nextElement();
request.setAttribute(atName, request.getAttribute(atName));
}
But this didn't help because if I click 'no' button (a link
technically speaking, which leads me to the jsp page with form)
I get an error 'No bean found under attribute key userForm'
I would appreciate any suggestion related to this problem.
Thank you for your time.
Best of luck,
Yuriy Zubarev
__
Do You Yahoo!?
Make international calls for as low as $.04/minute with Yahoo! Messenger
http://phonecard.yahoo.com/
logic:iterate and html:option
Hi all, I want to use the iterate tag to develop the html:option set for a html:select, is there a way to specify the html:option value=??? with the bean:write name=list property=value / tag that can be used in the iteration of my webVendorTreeMap? html:select property=webVendorKey name=webVendorKey // iterate TreeMap to develop the options for the select logic:iterate id=list property=webVendorTreeMap name=FormBean html:option value=??? // use the key value from the TreeMap to set text display bean:write name=list property=key / /html:option /logic:iterate /html:select Thank you, Aaron
RE: logic:iterate and html:option
I firgured out thx, was looking at the wrong tag description :) - Aaron -Original Message- From: Aaron Ravenberg [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 26, 2001 9:58 AM To: [EMAIL PROTECTED] Subject: logic:iterate and html:option Hi all, I want to use the iterate tag to develop the html:option set for a html:select, is there a way to specify the html:option value=??? with the bean:write name=list property=value / tag that can be used in the iteration of my webVendorTreeMap? html:select property=webVendorKey name=webVendorKey // iterate TreeMap to develop the options for the select logic:iterate id=list property=webVendorTreeMap name=FormBean html:option value=??? // use the key value from the TreeMap to set text display bean:write name=list property=key / /html:option /logic:iterate /html:select Thank you, Aaron
RE: html:tags and templates
Thank you for your reply, I actually was able to figure out last night that it had to do with my server enviroment. When I ran the files on another machine they worked *cheer*. Thank you Aaron -Original Message- From: Cedric Dumoulin [mailto:[EMAIL PROTECTED]] Sent: Thursday, July 19, 2001 4:43 AM To: [EMAIL PROTECTED] Subject: Re: html:tags and templates You certainly have an error in 'login.jsp' or 'myheader.jsp', caught by the get tag. Have you try to call these pages directly ? Do they work ? Cedric Aaron Ravenberg wrote: Hi, My html:TAGS are not working with my template set up. When I include the html and bean taglib directive in my login.jsp it my server throws a javax.servlet.ServletException: runtime failure in custom tag 'get'. When I move it to the template.jsp or index.jsp, the tags print out in the source but do not do anything. Any pointers would be appreciated. Sample code included below. I am using weblogic 5.1 sp 9 Thank you, Aaron Ravenberg index.jsp template:insert template=/template.jsp template:put name=header content=/myheader.jsp direct=false / template:put name=body content=/login.jsp direct=false / /template:insert template.jsp html body table trtdtemplate:get name=header //td/tr trtdtemplate:get name=body //td/tr /table /body /html login.jsp html:html html:form name=loginForm action=login.do table trtdhtml:text property=userid size=15/td/tr trtdhtml:password property=password size=15/td/tr /html:form /html:html myHeader.jsp Just static html
html:tags and templates
Hi, My html:TAGS are not working with my template set up. When I include the html and bean taglib directive in my login.jsp it my server throws a javax.servlet.ServletException: runtime failure in custom tag 'get'. When I move it to the template.jsp or index.jsp, the tags print out in the source but do not do anything. Any pointers would be appreciated. Sample code included below. I am using weblogic 5.1 sp 9 Thank you, Aaron Ravenberg index.jsp template:insert template=/template.jsp template:put name=header content=/myheader.jsp direct=false / template:put name=body content=/login.jsp direct=false / /template:insert template.jsp html body table trtdtemplate:get name=header //td/tr trtdtemplate:get name=body //td/tr /table /body /html login.jsp html:html html:form name=loginForm action=login.do table trtdhtml:text property=userid size=15/td/tr trtdhtml:password property=password size=15/td/tr /html:form /html:html myHeader.jsp Just static html
Struts Deployment
Hello all, I have just started using struts and I was wondering what is the best way to deploy struts for development, so I can avoid using a war file until it is ready to deploy in test or production? The documentation seems mostly geared toward deployment as a war file and the ActionServlet seems to need the action mapping described in the web.xml. I am using weblogic 5.1 sp 9 Thank you, Aaron Ravenberg
