The guest book is a little confusing because it uses it's own model which
not everyone will want to bother with. Here's a quick example of how to do
a table.
Here's the HTML:
<html>
<head>
<title>Hello World Servlet</title>
</head>
<body bgcolor="#FFFFFF">
<p>
<table>
<list helloList as hello>
<tr>
<td>${hello.message}
<td>${hello.line}
</tr>
</list>
</table>
</body>
</html>
Here's the code:
public class HelloServlet extends HttpServlet {
private Template template;
public void init(ServletConfig config) throws ServletException {
super.init(config);
String templatePath =
getServletContext().getRealPath("/hello-world.html");
template = new Template(templatePath);
}
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();
// Make a template data model.
SimpleHash modelRoot = new SimpleHash();
SimpleList list = new SimpleList();
modelRoot.put("helloList", list);
for (int i = 0; i < 10; i++) {
SimpleHash hello = new SimpleHash();
hello.put("message", "hello");
hello.put("line", i);
list.add(hello);
}
// Process the template.
template.process(modelRoot, out);
out.close();
}
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
doGet(req, res);
}
}
To explain. First you create a root. This is a basically a hashtable
(SimpleHash). Next you create a list (SimpleList). Then you create a
SimpleHash for each element you want in the list.
Basically you have three building blocks to play with:
SimpleScalar - This is effectively a single value variable.
SimpleHash - This is a hashtable of key value pairs. The value
part can actually be a value or a another list or hash.
SimpleList - This defines a list of values, hashes or sublists.
Hope this helps
-- Glen
Peter <[EMAIL PROTECTED]> on 12/08/99 11:02:02
Please respond to "A mailing list for discussion about Sun Microsystem's
Java Servlet API Technology."
<[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
cc: (bcc: Glen Stampoultzis/ITD/MEL/Ansett/AU)
Subject: Re: out.println("...");? "Freemarker easy? Any easy to understand
examples?"
> The difference being that freemarker has lots of nice extra's and has
what
I found to be
>excellent documentation.
Really ? I have to disagree with you there. I've read the Guestbook
example,
but frankly, its way over my head!! (read : newbie :) ) I hope
www.freemarker.org will post a simpler straightforward example (sans the
HelloWorld of course)
Do you know of any web sites out there that have any sample source code on
how to output a table resultset using freemarker ? I've tried searching,
but
couldn't find any.
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