I looking at the applet tag in the page source I can see that it is
sitting in a <table> construction like so:
<table ...>
<tr>
<td>
<applet ...>
</applet>
</td>
</tr>
</table>
So I did a little experimentation with applets and table tags and
found that applets will not display in the above type of layout. But
they will display in a table if you just remove the enclosing <td> tag
so it looks like this:
<table ...>
<tr>
<applet ...>
</applet>
</tr>
</table>
Don't know why the <td> tag is a problem, but it is. Anyone know how
we can get Jetspeed to quit putting the <td> tag around the <applet>
tag?
thx,
Gerry Reno
--- Gerry Reno <[EMAIL PROTECTED]> wrote:
> Ok, with a slight variance on the codebase ( just 'applets' ) the
> applet is loading and starting. However there is another problem -
> the
> applet does not display. I can see in the Java Console that it is
> running and doing all the things that it should be doing but no
> display. I've tried this under a couple different versions of Tomcat
> and same thing on all of them. I checked the page source and the
> applet tag is there and all the parameters are right but I don't see
> the applet.
>
> Any suggestions?
>
> thx,
> Gerry Reno
>
>
> --- "Luta, Raphael (VUN)" <[EMAIL PROTECTED]> wrote:
> >
> > You cannot calculate the codebase relative to the Portlet JSP
> > because this JSP is not accessed directly by the browser.
> >
> > The codebase must be relative to the jetspeed servlet URI, which
> > is /jetspeed/portal/ by default, thus your codebase should
> > certainly be only "../applets", and this will work wherever your
> > portlet JSPs are located :)
> >
> > --
> > Raphaël Luta - [EMAIL PROTECTED]
> > Jakarta Jetspeed - Enterprise Portal in Java
> > http://jakarta.apache.org/jetspeed/
> >
> >
> > > -----Message d'origine-----
> > > De : Gerry Reno [mailto:[EMAIL PROTECTED]
> > > Envoyé : dimanche 3 août 2003 22:33
> > > À : Jetspeed Users List
> > > Objet : JSP Portlet with Applet
> > >
> > >
> > > Env:
> > > RH8.0
> > > J2SE 1.4.2
> > > Tomcat 4.1.24
> > > Jetspeed 1.4b4
> > >
> > > I am seeing strange behavior when trying to use an applet in a
> > JSP
> > > Portlet. The entries in my jsp file within the applet tag are:
> > >
> > > <applet
> > > code="com.domain.applet.MyApplet.class"
> > > codebase="../../../../../applets"
> > > archive="domain-applets-myapplet.jar,
> > > ../lib/jjj.jar,
> > > "
> > > ...
> > > </applet>
> > >
> > > The codebase is set this way due to the jsp file being in the
> > > WEB-INF/templates/jsp/portlets/html/ directory. The codebase for
> > an
> > > applet is calculated relative to the html/jsp file containing the
> > > applet tag.
> > >
> > >
> > > Using Mozilla from Linux:
> > > The Java Console shows the following output:
> > > Loading applet ...
> > > Initializing applet ...
> > > Starting applet ...
> > > Connecting
> > >
> >
> http://localhost:8080/../../../../applets/domain-applets-myapplet.jar
> > > with no proxy
> > > Connecting
> > >
> >
> http://localhost:8080/../../../../applets/domain-applets-myapplet.jar
> > > with cookie " "
> > > Connecting
> http://localhost:8080/../../../../applets/../lib/jjj.jar
> > > with no proxy
> > > Connecting
> http://localhost:8080/../../../../applets/../lib/jjj.jar
> > > with cookie " "
> > > Connecting
> > > http://localhost:8080/../../../../applets/com/domain/applet/My
> > > Applet.class
> > > with no proxy
> > > Connecting
> > > http://localhost:8080/../../../../applets/com/domain/applet/My
> > > Applet.class
> > > with cookie " "
> > > Connecting
> > > http://localhost:8080/../../../../applets/com/domain/applet/My
> > > Applet/class.class
> > > with no proxy
> > > Connecting
> > > http://localhost:8080/../../../../applets/com/domain/applet/My
> > Applet/class.class
> > with cookie " "
> > load: class com.domain.applet.MyApplet.class not found.
> > java.lang.ClassNotFoundException: com.domain.applet.MyApplet.class
> > at
> > sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:154)
> > at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
> > at
> > sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:115)
> > at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
> > at
> sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:558)
> > at sun.applet.AppletPanel.createApplet(AppletPanel.java:617)
> > at sun.plugin.AppletViewer.createApplet(AppletViewer.java:1848)
> > at sun.applet.AppletPanel.runLoader(AppletPanel.java:546)
> > at sun.applet.AppletPanel.run(AppletPanel.java:298)
> > at java.lang.Thread.run(Thread.java:534)
> > Caused by: java.io.IOException: open HTTP connection failed.
> > at
> sun.applet.AppletClassLoader.getBytes(AppletClassLoader.java:257)
> > at
> > sun.applet.AppletClassLoader.access$100(AppletClassLoader.java:43)
> > at sun.applet.AppletClassLoader$1.run(AppletClassLoader.java:144)
> > at java.security.AccessController.doPrivileged(Native Method)
> > at
> > sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:141)
> > ... 9 more
> > Exception: java.lang.ClassNotFoundException:
> > com.domain.applet.MyApplet.class
> >
> >
> > Using IE6 under Windows:
> > The Java Console shows the following output:
> > java.io.FileNotFoundException:
> > http://localhost:8080/applets/domain-applets-myapplet.jar
> >
> >
> > From the Java Console output it appears as though the portlet is
> > running the jsp file from http://localhost:8080 for Mozilla (and is
> > cutting off one of the "../" in the codebase) and from
> > http://localhost:8080 for IE6 (and is ignoring the ../../../../../
> > leading path altogether) rather than from the template directory
> > where
> > it is stored. This is not good. It means that for any applet we
> > cannot calculate codebase paths relative to the jsp file which is
> > what
> > you are supposed to do when using an applet.
> >
> > BTW, my applet works correctly in an iframe portlet in both
> > browsers.
> >
> > Has anyone had any success displaying an applet from a JSP
> Portlet?
> >
> > thx,
> > Gerry Reno
> >
> >
> >
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