Solved

Applet data to TextFile

Posted on 2003-12-01
14
284 Views
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
Comment
Question by:Narayanaswamy
  • 7
  • 5
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
Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

 
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

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

INTRODUCTION Working with files is a moderately common task in Java.  For most projects hard coding the file names, using parameters in configuration files, or using command-line arguments is sufficient.   However, when your application has vi…
Java had always been an easily readable and understandable language.  Some relatively recent changes in the language seem to be changing this pretty fast, and anyone that had not seen any Java code for the last 5 years will possibly have issues unde…
This tutorial will introduce the viewer to VisualVM for the Java platform application. This video explains an example program and covers the Overview, Monitor, and Heap Dump tabs.
This tutorial explains how to use the VisualVM tool for the Java platform application. This video goes into detail on the Threads, Sampler, and Profiler tabs.

813 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now