Re: Red X image displayed where the applet should be, applets won't

Nigel Wade wrote:

 
>
> No, it's not a contradiction. Applets require a web server, and they load 
images
> from the same web server as they were themselves loaded from (or from with
in a
> jar obtained from the same server). If you attempt to load an applet from 
the
> local filesystem, as you have done here, then the JVM classloader can load
 the
> class you specify, but your class file cannot access the local filesystem
> unless you sign the applet. This is for everyone's protection. Otherwise a
n
> applet which you accessed via some random URL would be able to access your
> filesystem, which I'm sure you don't want to be allowed.
> 
>
> but the applet plugin won't do so, and for a very good reason.
>

Interesting  </Morten>
 
>
> Huh?
>
I will discuss the HTML <IMG SRC=""> tags later. </Morten>


Hi Nigel,

What! Applets require a web server?
Interesting.

http://tinyurl.com/35dt2b

http://tinyurl.com/3dr2e4

http://tinyurl.com/3a2268

http://tinyurl.com/2vf3cw

http://tinyurl.com/2t856d



this shows that some works and others woun't work.

esp this one   http://tinyurl.com/35dt2b

it works like charm from the
Apache/2.0.61 (Unix) Server at xxxx Port 80

with images and permissions  and no jar file

and this one  http://tinyurl.com/2t856d
always fails with nasty stack trace.
And the Red X image displayed where the applet should be,
except when run from the appletviewer.

the example I'm using which is supposed to work both has as Java code


 



and in the html file  containing the <applet> ... </applet>  tag   also
has an html tag like  <IMG SRC="filewithpicture.gif">

In the docs IIRC   I at least remember to have read something like
<applet>   is incorrect  it should have been <object> </object>

but since there are so many different browsers the safe and old
fashioned way is the traditional way and still IIRC  if I remember
correctly  the recommended tag  is in 2008 the <applet>.

My interpretation of this is in order to be  browser compatible
also as an additional  safety tag also to include an <IMG>  tag.

This can be due to the population of nonstandards proprietary web
browsers.  I'm not discussing safari, Opera or Linux web browsers.

but this is about a java applet and  I feel it would be nearly correct
to create an html file containing only the  <applet>  </applet>
tag  like this

<applet  code=PreviewApplet2.class  width="400" height="200">
</applet>



Applets require a web server is an incorrect statement.

file:///usr/jdk/instances/jdk1.6.0/demo/applets/TicTacToe/example1.html

works like charm
in my browser
in my applet viewer
and from my homepage
and it has pictures.

I think it must be a misunderstanding.

please take a close look here.

[url]http://java.sun.com/docs/books/tutorial/deployment/jar/examples/TicTacToe.html[/ur
l]



<title>TicTacToe</title>
<hr>
<applet code=TicTacToe.class width=120 height=120>
</applet>
<hr>
<a href="TicTacToe.java">The source.</a>




For me this looks like an implementation
without any signature on the jar file.


and the html <IMG>  tag is not present,  so I will keep it
out of my example code for the moment.

Currently I have not done the effort with signing jar files or creating
an applet as a jar file.



best regards

Morten