"LEONG MUN WAI, CUSD" wrote:
> This looks like a good candidate for standardized tags discussion.
>
> > <html>
> > <head>
> > </head>
> > <body>
> > <%
> > //adds a cookie
> > Cookie c = new Cookie("foo","foobar");
> > response.addCookie(c);
> >
> > //gets the cookies
> > Cookie[] cookies = request.getCookies();
> > out.print("# of cookies found = " + cookies.length);
> > if (cookies != null)
> > {
> > for (int i = 0; i<cookies.length; i++)
> > {
> >
> > out.print("name: " + cookies[i].getName()+"<P>");
> > out.print("value: " + cookies[i].getValue()+"<P>");
> > }
> > }
> > %>
> > </body>
> > </html>
Cookies save session information on the client side. This can also be done using
URL rewriting, but to the JSP author, these details can be abstracted away using:
<% session.putValue((String)key, (Object)value);
session.getValue((String)key); %>
The Servlet engine should use cookies if enabled on the client, or URL rewriting if
cookies are not available.
The corresponding standardized tags would be:
<setData name="key" value="value" scope="session"/>
<getData name="key" scope="session"/>
--
Michael Hu, Paradox Team, Corel Corporation
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