Applet servlet jsp communication

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sarath - 16 Jul 2005 12:38 GMT

Hi everyone..

i have an applet,which is embedded in the browser, that takes some
input features from user(around 700bytes) and has to contact the
server, with these features. The server then has to process the request
and dispatch to another jsp file whose content will be displayed in the
user browser(not in the applet).

now i am trying to contact the server using Url.openConnection()
method and sending the request to the server.. but the problem is that
the response is obtained by the applet which made the url connection
and not the browser that has the applet embedded.

can any one suggest a way so that the jsp page embedding the
applet will get the response? if you do not understand my question,
please ask me for details..

also , i want to know, if i have and applet, which is embedded in a
jsp file, is it possible to pass parameters to each other ? like, i get
some input from the user in a text field in the applet..is there any
way i can give that value input from the user to the embedding jsp
page(The html code that is generated by the jsp).....

any help would be appreciated..

Thanks in Advance
sarath

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Andrew Thompson - 16 Jul 2005 14:17 GMT

> i have an applet,which is embedded in the browser, that takes some
> input features from user(around 700bytes) and has to contact the
> server, with these features.

Send the information as part of a URL in
<http://java.sun.com/j2se/1.5.0/docs/api/java/applet/AppletContext.html#showDocum
ent(java.net.URL)>

But note that you need to have a checking mechanism in the
applet.. Some browsers simply ignore 'showDocument' now due
to the problems with unwanted pop-ups from web pages.

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Andrew Thompson
physci.org 1point1c.org javasaver.com lensescapes.com athompson.info
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Raymond DeCampo - 16 Jul 2005 21:37 GMT

>> i have an applet,which is embedded in the browser, that takes some
>>input features from user(around 700bytes) and has to contact the
[quoted text clipped - 6 lines]
> applet.. Some browsers simply ignore 'showDocument' now due
> to the problems with unwanted pop-ups from web pages.

Andrew,

Do you have any details as to which browsers, or pointers to
documentation for this problem?

In particular, I have used URLs of the form "javasrcipt:" in the past, I
am curious if they are affected as well.

Thanks,
Ray

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XML is the programmer's duct tape.

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Andrew Thompson - 17 Jul 2005 22:11 GMT

>>> i have an applet,which is embedded in the browser, that takes some
>>>input features from user(around 700bytes) and has to contact the
[quoted text clipped - 6 lines]
>> applet.. Some browsers simply ignore 'showDocument' now due
>> to the problems with unwanted pop-ups from web pages.

> Do you have any details as to which browsers, or pointers to
> documentation for this problem?

A discussion[1] (look particularly for Grant Wagner's response)
and browser tester[2]..

[1]
<http://groups-beta.google.com/group/comp.lang.java.programmer/msg/fd45163fc01cdf59>

[2] <http://www.physci.org/codes/showdoc/>

I am afraid that little further detail (as to the exact %
of affected browsers) has become apparent since then.

> In particular, I have used URLs of the form "javasrcipt:" in the past, I
> am curious if they are affected as well.

Now that is an interesting one. I suspect that if
JS is enabled[3] the JS URL's wold be just as reliable
(or unreliable) as standard showDocument(URL)'s.

[3] But that raises an interesting question I have been
meaning to check.. what happens in a browser that has
JS disabled? Do the JS URL's work at all?

( I am particularly thinking of the Mozilla family
of browsers - if JS is disabled - they are not even
capable of telling you their own program version number! )

BTW - I have been meaning to post a reply to the 'why 1.1?'
thread, but I have so much to say on the subject I am thinking
it should go in a web page (there are a number of applet related
topics that I need to make some commentary on).
[ Including that showDocument() should be considered as unreliable
as showStatus() ever was, and that neither should be used for
vital information. ]

As yet - I have not even had time to read the replies by
Mickey Segal and Tim Tyler.

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Andrew Thompson
physci.org 1point1c.org javasaver.com lensescapes.com athompson.info
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tex - 16 Jul 2005 22:50 GMT

Which browsers? IE? IE.v6?
Is there another way for my applet to download a 2nd HTML pg
for the user?

Thanks,
--tex

> But note that you need to have a checking mechanism in the
> applet.. Some browsers simply ignore 'showDocument' now due
> to the problems with unwanted pop-ups from web pages.
> Andrew Thompson

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Andrew Thompson - 17 Jul 2005 22:16 GMT

> Which browsers? IE? IE.v6?
> Is there another way for my applet to download a 2nd HTML pg
> for the user?

See my answer to Ray..

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Andrew Thompson
physci.org 1point1c.org javasaver.com lensescapes.com athompson.info
It's Like "Hee Haw" With Lasers

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Applet servlet jsp communication

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