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Applet data to TextFile

Posted on 2003-12-01
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Last Modified: 2013-11-23
Hai
  I am having an Applet.

import java.awt.*;
import java.io.*;
import java.applet.*;

public class FileTest extends Applet {

  public void paint(Graphics g) {
    String fileName = "MyTest.txt";
    try {
      FileOutputStream fos = new FileOutputStream(fileName);
      PrintStream outputFile = new PrintStream(fos);
      outputFile.println(" This is a test");
      outputFile.close();
      fos.close();
      g.drawString("The applet created the file " + fileName, 10, 20);
    }
    catch (Exception e) {
      g.drawString(e + "", 10, 20);
    }
  } // paint

}


If I execute this It shows error: access denied  java.FilePermission .....
How to send the output to txt file from Applet?

I want to save the Applet and Txt file in server and  clients want to write the information to the txt file through the Applet.
Is it possible ? If so How?

Thanks
Narayanaswamy
0
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Question by:Narayanaswamy
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14 Comments
 

Author Comment

by:Narayanaswamy
ID: 9856122
Can any one give me sample codes or links

Narayanaswamy
0
 
LVL 92

Expert Comment

by:objects
ID: 9856216
you need to sign your applet

And you shouldn't do the file writing in paint, this will get called every time the applet requires repainting.
0
 

Author Comment

by:Narayanaswamy
ID: 9856248
Thanks objects

I am not aware of "you need to sign your applet"

Can i get more details and any sample codes


Narayanaswamy
0
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LVL 92

Expert Comment

by:objects
ID: 9856262
0
 

Author Comment

by:Narayanaswamy
ID: 9856752
Hai
I read that article.

I did the Signed Applet using JDK Plugin

It is working in my system. ( It is creating the txt file in desktop not in the same folder where the class file resides ) and also When I tried from another system this is not working....

When I try Signed Applet in Internet Explorer
makecert is not accepted by the command line

Can you help me in doing this....

Narayanaswamy
0
 

Author Comment

by:Narayanaswamy
ID: 9856857
Hai

I placed the jar file and the html file in the Server.

I opened the Url..
The txt file is created in my system but i want that to be created in the server....

How to to that..?

Thanks
Narayanaswamy
0
 
LVL 92

Accepted Solution

by:
objects earned 50 total points
ID: 9861970
You need to write a server component (such as a servlet) to accept the data and write the file to server.
0
 

Author Comment

by:Narayanaswamy
ID: 9864106
Can I get more details about that please.....

Narayanaswamy
0
 

Author Comment

by:Narayanaswamy
ID: 9902361
Hai
May i know from where I can download the Microsoft SDK for Java
and how to install and include in my class path to sign my applet...

Thanks
Narayanaswamy
0
 
LVL 92

Expert Comment

by:objects
ID: 9902376
> where I can download the Microsoft SDK for Java

i don't believe it is available anymore.
0
 

Author Comment

by:Narayanaswamy
ID: 9902433
Then can you explain me
how to sign in  the applet to the system that doesn't have JDK plugin...?

When i tried to start My applet in the system that doesnt have JDK plugin but  Microsoft JVM is present I am not able to see the applet insted i can able to see only a blank space...

How to load my applet into that system.

Thanks
Narayanaswamy
0
 
LVL 92

Expert Comment

by:objects
ID: 9902436
Unfortunately I don't think you can.
Try searching the web for the tools required.
0

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