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 Post subject: Help with Java
PostPosted: Thu Mar 29, 2012 6:40 am 
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Joined: Sat Jun 11, 2011 7:52 am
Posts: 25
Location: Te Puke
Weather Station: Digitech
Operating System: Windows 7 Ultimate
Hi all

Well I am stuck on a issue, I want to call a realtime.txt from another host, but when I enter the path it dose not work.

This is the code if the Javascript was in the same file as the cumulus realtime.txt file on the host.

var realtime_location="realtime.txt";

But I can't get it call another realtime.txt file from another cumulus install on another host.

what would be the command?

Thanks all.

Brendan

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 Post subject: Re: Help with Java
PostPosted: Thu Mar 29, 2012 7:28 am 
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Joined: Mon Jun 02, 2008 6:49 pm
Posts: 17835
Location: Sanday, Orkney
Weather Station: Davis VP2
Operating System: Windows Home Server 2011
I think the answer is that Javascript does not allow cross-domain access, because it's a security risk.

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Sanday Weather
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 Post subject: Re: Help with Java
PostPosted: Thu Mar 29, 2012 7:32 am 
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Joined: Sat Jun 11, 2011 7:52 am
Posts: 25
Location: Te Puke
Weather Station: Digitech
Operating System: Windows 7 Ultimate
Bugger....

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 Post subject: Re: Help with Java
PostPosted: Thu Mar 29, 2012 10:39 am 
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Joined: Mon Aug 10, 2009 10:16 pm
Posts: 1698
Location: World...
Weather Station: No weather station
Operating System: No operating system
Brendan, you would have better chances of accomplishing that task if you were to use PHP as PHP is a server-side language whereas JavaScript is a user-side language.

Although I have been 'playing' with PHP for the past 6-7 years, unfortunately, my knowledge on how such a task can be accomplished is very very limited... :oops:


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 Post subject: Re: Help with Java
PostPosted: Thu Mar 29, 2012 12:09 pm 
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Joined: Thu Jan 07, 2010 9:44 pm
Posts: 2596
Location: Wilmslow, Cheshire, UK
Weather Station: Davis VP2
Operating System: XP SP3, Win 7
My PHP is even more limited, but cURL springs to mind?

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Mark
Wilmslow Astro Weather


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 Post subject: Re: Help with Java
PostPosted: Thu Mar 29, 2012 12:26 pm 
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Joined: Wed Oct 21, 2009 11:19 am
Posts: 280
Location: Bayswater, Australia
Weather Station: La Crosse WS-2355
Operating System: Windoze 7
Brendan,
You might find something here: http://au.php.net/manual/en/function.http-get.php


Cheers.

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Graeme.
http://weather.gktnet.com/cumulus/index.htm
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 Post subject: Re: Help with Java
PostPosted: Thu Mar 29, 2012 12:43 pm 
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Joined: Tue Dec 09, 2008 1:37 pm
Posts: 1888
Location: Dudley, West Midlands, UK
Weather Station: None !
Operating System: XP SP3
Do you have PHP ?

Do you want to process the file with JavaScript or PHP ?

IS IT YOUR DATA !

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 Post subject: Re: Help with Java
PostPosted: Thu Mar 29, 2012 8:14 pm 
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Joined: Sat Jun 11, 2011 7:52 am
Posts: 25
Location: Te Puke
Weather Station: Digitech
Operating System: Windows 7 Ultimate
Yes its my data (to start with) and one other from my mates station.

I do have PHP,

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 Post subject: Re: Help with Java
PostPosted: Thu Mar 29, 2012 10:29 pm 
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Joined: Mon Aug 10, 2009 10:16 pm
Posts: 1698
Location: World...
Weather Station: No weather station
Operating System: No operating system
Brendan, if you are interested in learning something new, you might want to download and look at the code within Ken True's PHP/AJAX Website Template Sets (I would suggest the world templates) - I know, this might not be the 'easy-way-out' most people are expecting, but it would be a rewarding learning experience. ;)

Ken uses a function called 'fetchUrlWithoutHanging' (that function name is found in the 'check-fetch-times.php' template, but the same/similar function or under a slightly different name is also found in many other templates - a search for the word 'WithoutHanging' should provide many results) - the function is used to get contents from one URL and to return it as a string. Depending on how much protection and processing is needed, the function can be a few lines of code or many lines of code (that is why I am not posting any of the code).


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 Post subject: Re: Help with Java
PostPosted: Thu Mar 29, 2012 11:14 pm 
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Joined: Tue Dec 09, 2008 1:37 pm
Posts: 1888
Location: Dudley, West Midlands, UK
Weather Station: None !
Operating System: XP SP3
That's as good an education as you can get if you can get your head around it :)

Learning the 'routines' for grab and parsing will give you lots of new ideas :clap:

You don't say if you want to cyclically get the realtime.txt or do it as 'one-shot', that will make a difference to the solution you use, but the basics will be the same.

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Last edited by beteljuice on Mon Apr 02, 2012 11:47 am, edited 1 time in total.

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 Post subject: Re: Help with Java
PostPosted: Mon Apr 02, 2012 11:10 am 
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Joined: Sat Jun 11, 2011 7:52 am
Posts: 25
Location: Te Puke
Weather Station: Digitech
Operating System: Windows 7 Ultimate
Hmm I have been looking at PHP... seems to be the way to go.. so I will have to site down and learn the code.... O fun

Thanks you for all your help :D

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 Post subject: Re: Help with Java
PostPosted: Mon Apr 02, 2012 12:43 pm 
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Joined: Wed Oct 21, 2009 11:19 am
Posts: 280
Location: Bayswater, Australia
Weather Station: La Crosse WS-2355
Operating System: Windoze 7
Brendan,
A good place to start is http://www.w3schools.com
It has tutorials covering php, javascript, html and just about everything in between.

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http://weather.gktnet.com/cumulus/index.htm
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