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Arcane Wizard
`semi-hippie`
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 Posted: 08 Nov 2004 10:24:15 am Post subject: |
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It's absolutely impossibe to store a (text) file on the client's system using an applet, right? (and the same goes for storing files to the server, right?)
Is there a way around this using php? Like pass the info that's to be stored to a php script on the server?
Last edited by Guest on 08 Nov 2004 10:27:47 am; edited 1 time in total |
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optimize
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Joined: 03 Aug 2004
Posts: 99
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| Posted: 08 Nov 2004 06:37:57 pm Post subject: |
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| I believe so for security reasons; however I could be extremely wrong. |
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Brazucs
I have no idea what my avatar is.
Super Elite (Last Title)
Joined: 31 Mar 2004
Posts: 3349
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| Posted: 09 Nov 2004 09:49:17 am Post subject: |
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You are extremely right. On an applet it is not possible; on program it is.
Otherwise, it would be too easy to create a virus with applets... |
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Arcane Wizard
`semi-hippie`
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| Posted: 09 Nov 2004 11:36:48 am Post subject: |
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Java applications support it, but the thing is, I'm making an applet and it doesn't really need a save function, but I'd like it to so the users won't have to select all, and cut and paste all their work (which will be in 1 textfield) so I was wondering if it was possible to do it by passing on the info to a php script and have that save a temp file on the server and show an url to the user so (s)he can download their work.
*work*
save function -> pass text to php script
php script -> save on server -> show url to file
download, php script -> remove file from server
Problem is I don't know how to pass on the info to the PHP script.
I'm guessing I just need to open a connection to the php script with by creating an URL object like so..
url = new Url( "http://www.myhost.com/phpscriptfilename.php$=the_text_i_want_to_save" );
and then open a stream to it in order to retrieve the outputted url to the saved file on the server like so..
urlpage = url.openStream();
But that's just a guess.
Last edited by Guest on 09 Nov 2004 11:57:37 am; edited 1 time in total |
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optimize
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Joined: 03 Aug 2004
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| Posted: 09 Nov 2004 08:47:48 pm Post subject: |
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| You can save data to a server, although I've not gotten that far into Java yet so I wouldn't know how. (I'm sure you can because of all those Java RPGS online). I might be able to bring up some script later if you want it from my rotting 1000+pg book |
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Arcane Wizard
`semi-hippie`
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| Posted: 10 Nov 2004 06:41:23 am Post subject: |
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optimize wrote: You can save data to a server, although I've not gotten that far into Java yet so I wouldn't know how. (I'm sure you can because of all those Java RPGS online).
That's a good point there.
Quote: I might be able to bring up some script later if you want it from my rotting 1000+pg book I'd appreciate it, but only if it's not too much effort, and you don't have to find an entire script, just the idea behind it/key functions, the book I have only handles file i/o in applications, not applets and it doesn't even handle random i/o, only streams.
But once I have an idea of how to do it or the key functions behind it I can figure it out, and then a first version of that tibasic interpreter I've mentioned might be posted some time soon. |
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Brazucs
I have no idea what my avatar is.
Super Elite (Last Title)
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| Posted: 10 Nov 2004 06:54:12 pm Post subject: |
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| I think the server thing is the way to go, perhaps the only way on an applet. |
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Arcane Wizard
`semi-hippie`
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| Posted: 11 Nov 2004 03:33:32 am Post subject: |
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| The question is, how? |
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Brazucs
I have no idea what my avatar is.
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| Posted: 11 Nov 2004 05:56:24 pm Post subject: |
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| Ugh... I'm not sure. I've seen games that do it (Runescape) but you'd have to find an open-source one. Flash is much easier to do that. |
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optimize
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| Posted: 11 Nov 2004 06:47:55 pm Post subject: |
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Ok I'll go look it up now and edit this post when I find it...
I might have found it. It deals with sending packets to the server, although I have no clue what this means I would believe its some way to "save" data...
You want more on it?
Last edited by Guest on 11 Nov 2004 06:52:21 pm; edited 1 time in total |
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Brazucs
I have no idea what my avatar is.
Super Elite (Last Title)
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| Posted: 11 Nov 2004 06:49:46 pm Post subject: |
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Quote: Ok I'll go look it up now and edit this post when I find it...
If you're looking for Runescape, give it up. No way that's open-source! |
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optimize
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| Posted: 11 Nov 2004 06:54:28 pm Post subject: |
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Quote: If you're looking for Runescape, give it up. No way that's open-source!
That's not what I was looking for.
Quote: I'd appreciate it, but only if it's not too much effort, and you don't have to find an entire script, just the idea behind it/key functions, the book I have only handles file i/o in applications, not applets and it doesn't even handle random i/o, only streams.
That's what I was looking for |
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Brazucs
I have no idea what my avatar is.
Super Elite (Last Title)
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| Posted: 12 Nov 2004 02:31:02 am Post subject: |
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| Oh, I thought you were looking for the Runescape source code, since I tlaked about it like one post before. Sorry. |
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Arcane Wizard
`semi-hippie`
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| Posted: 12 Nov 2004 06:38:24 am Post subject: |
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optimize wrote: You want more on it?
That. |
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optimize
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Posts: 99
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| Posted: 12 Nov 2004 03:09:56 pm Post subject: |
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Alright, this is a painfully long source code, here it goes...
Code:
import javax.swing.*;
public class Server extends JFrame {
private JTextArea displayArea;
private DatagramPacket sendPacket, receivePacket;
private DatagramSocket socket;
// set up GUI and DatagramSocket
public Server()
{
super( "Server" );
displayArea = new JTextArea();
getContentPane().add( new JScrollPane( displayArea ),
BorderLayout.CENTER );
setsize( 400, 300 );
setVisible( true );
// create DatagramSocket for sending and receiving packets
try {
socket = new DatagramSocket( 5000 );
}
// process problems creating DatagramSocket
catch( SocketException socketException ) {
socketException.printStackTrace();
System.exit( 1 );
}
} // end Server constructor
// wait for packets to arrive, then display data and echo
// packet to client
public void waitForPackets()
{
// loop forever
while ( true ) {
// recieve packet, display contents, echo to client
try {
// set up packet
byte data[] = new byte[ 100 ];
recievePacket =
new DatagramPacket( data, data.length );
// wait for packet
socket.receive( recievePacket );
// process packet
displayPacket();
// echo information from packet back to client
sendPacketToClient ();
}
// process problems manipulating packet
catch( IOException ioException ) {
displayArea.append( ioException.toString() + "\n" );
ioException.printStackTrace();
}
} // end while
} // end method waitForPackets
// display packet contents
private void displayPacket()
{
displayArea.append( "\nPacket received:" +
"\nFrom host: " + receivePacket.getAddress() +
"\nHost port: " + receivePacket.getPort() +
"\nContaining:\n\t +
new String( receivePacket.getData(), 0,
receivePacket.getLength() ) );
}
// echo packet to client
private void sendPacketToClient() throws IOException
{
displayArea.append( "\n\nEcho data to client..." );
// create packet to send
sendPacket = new DatagramPacket( receivePacket.getData(),
receivePacket.getLength(), receivePacket.getAddress(),
receivePacket.getPort() );
// send packet
socket.send( sendPacket );
displayArea.append( "Packet sent\n" );
displayArea.setCaretPosition(
displayArea.getText().length() );
}
// execute application
public static void main( String args[] )
{
Server application = new Server();
application.setDefaultCloseOperation(
JFrame.EXIT_ON_CLOSE );
application.waitForPackets();
}
} // end class Server
Might be a typo or two in there. I can't really answer any questions because I have pretty much no clue what all that stuff means but I might be able to find it in the page that describes what the program is doing.
Have fun  |
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Brazucs
I have no idea what my avatar is.
Super Elite (Last Title)
Joined: 31 Mar 2004
Posts: 3349
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| Posted: 12 Nov 2004 10:44:02 pm Post subject: |
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| It has a few comments in it explaining what it's doing. I don't see why they would have a separate page for the comments or to say what it's doing. |
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Arcane Wizard
`semi-hippie`
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Joined: 02 Jun 2003
Posts: 8993
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| Posted: 13 Nov 2004 05:49:55 am Post subject: |
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optimize wrote: Alright, this is a painfully long source code, here it goes...
Code: <code>
Might be a typo or two in there. I can't really answer any questions because I have pretty much no clue what all that stuff means but I might be able to find it in the page that describes what the program is doing.
Have fun
Awesome, thanks.
Quote: It has a few comments in it explaining what it's doing. I don't see why they would have a separate page for the comments or to say what it's doing. Books on programming usually describe it in more detail than just "// set up GUI and DatagramSocket" for an entire function. |
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Brazucs
I have no idea what my avatar is.
Super Elite (Last Title)
Joined: 31 Mar 2004
Posts: 3349
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| Posted: 13 Nov 2004 03:29:24 pm Post subject: |
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Ooh... this was taken from a book!
It must have taken a while for him to type it up |
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optimize
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Posts: 99
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| Posted: 13 Nov 2004 04:59:20 pm Post subject: |
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Quote: It must have taken a while for him to type it up
Had nothing better to do on a Friday afternoon |
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General Coding and Design => Calculator Programming
