(nesting rocks indeed)
Denis.
Andrew Hill wrote:
Another plus to the struts tags is the nesting ability, which imho rocks! (Though Im not actually using JSP so had to render the nesting details the hard way...)
-----Original Message----- From: Ted Husted [mailto:[EMAIL PROTECTED] Sent: Sunday, 6 July 2003 05:02 To: Struts Users Mailing List Subject: Re: Why html:xxx tags? / Dreamweaver and .do extension
tek1 wrote:
Sorry for the newbie questions, but...
[ Why html:xxx tags? ]
On the .jsp page, why is it necessary to replace the standard html tags
with the Struts-specific ones (i.e. "html:form" instead of just "form").
In other words, what special features of Struts requires these specially
defined tags?
In a dynamic web application there has to be some mechanism for transfering information from the server-side action into the server page. One approach is to do this inside the HTML markup with JSP scriptlets, but that is clumsy and error-prone. Another approach is to have a custom JSP tag print out both the HTML tag and the dynamic content, which is what the Struts tags do.
The Struts HTML tags are aware of where the framework stores information, and so, in practice, become quite easy to use.
The core framework is unaware of the tags and works just as well with other approaches. There are both XLS and Velocity Template extension for Struts that work just fine with out the tags. The Velocity Templates (.vm) work particularly well in visual HTML editors "out of the box".
[ Dreamweaver and .do extension ]
If there are any Dreamweaver users out there, how do you specify that
Dreamweaver also open files that end with .do (and .vm)? I tried adding
the extensions under "Edit" -> "Preferences" -> "File Types / Editors"
Category -> "Open in Code View", but it didn't work. I would actually
prefer to open them in Dreamweaver's visual/GUI editor, but looks like
that is not an option.
Struts doesn't actually use ".do" files. These are virtual files that bundled together a server-side action with one or more output files (such as JSPs or Velocity Templates).
So the servlet sees the *.do extension and passes the request to the Struts ActionServlet. The Servlet then passes it along to the server-side Struts Action class, which does whatever it needs to do, places any dynamic data that might be needed in the request, and helps select the server page (of whatever kind) to render that data.
The server page retrieves the dynamic data from the request, using either Struts tags (origInal, JSTL, or extra crispy), or Velocity Tools, or from a DOM created by an extension like stxx, or any other presentation device that can access the Java request object.
-Ted.
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