Any object can be stored as an accessible bean, if you do it yourself. In other
words, you can create a Hashtable (in a servlet or JSP page) and store it in the
appropriate place, then access it with <jsp:useBean> declarations. For example,
you can do the following (in a servlet or a JSP scriptlet) to put a Hashtable into
the user's session:
Hashtable mytable = new Hashtable();
HttpSession session = request.getSession();
session.put("hashtable", mytable);
and then access it in JSP like this:
<jsp:useBean id="hashtable" class="java.util.Hashtable" scope="session"/>
If you want the <jsp:useBean> tag to create the bean if its not there, your Java
class needs to conform to the naming conventions in the JavaBeans spec. For the
purposes of <jsp:useBean>, the critical rule is that your class must have a
no-arguments constructor. Many (but not all) classes have this feature, and are
thus suitable for use in this way.
Craig McClanahan
Frank Kim wrote:
> Is there a way to access data in a Hashtable from a JSP or does data always
> have to be exposed through a bean?
>
> I'd like to use it like a context in WebMacro or a SimpleHash in FreeMarker
> where the Hashtable can store simple types as well as complex ones like
> other Hashtables, Vectors, etc.
>
> Thanks
> Frank
>
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>
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To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
Some relevant FAQs on JSP/Servlets can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
