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running an applet

Posted on 2001-08-16
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Last Modified: 2013-12-29

hi,

I have an applet which has many gif files

I can run the applet from the web server or from any IDE

but when I try to run the applet from appletviewer
or from the browser
like
appletviewer applet1.html
 

it gives me
java.secutiry.AccessControlException: access denied(
java.io.FilePermission logo.gif read)

what's the problem?

can I run the applet by just giving the applet1.html
in the browser like any other html file

I have put the jar file in the html
do I need to do something for the gif files?

This is my html file:
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252">
<TITLE>
HTML Test Page
</TITLE>
</HEAD>
<body bgcolor="#0066FF">



<!--"CONVERTED_APPLET"-->
<!-- CONVERTER VERSION 1.3 -->
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
WIDTH = 330 HEIGHT = 290 NAME = "LoginApplet" ALIGN = center VS
PACE = 0 HSPACE = 0 VSPACE= 30%  codebase="http://java.sun.com/products/plugin/1.3/jinstall-13-win32.cab#Version=1,3,0,0">
<PARAM NAME = CODE VALUE = "LoginApp.class" >
<PARAM NAME = CODEBASE VALUE = "." >
<PARAM NAME = NAME VALUE = "LoginApplet" >
<PARAM NAME = ARCHIVE VALUE = "PocdClasses.jar">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.3">
<PARAM NAME="scriptable" VALUE="false">
<COMMENT>
<EMBED type="application/x-java-applet;version=1.3"  CODE = "Login.class" CODEBASE = "." NAME = "LoginApplet" WIDTH = 90% HEIGHT = 90% ALIGN = center VSPACE = 0 HSPACE = 20%  scriptable=false pluginspage="http://java.sun.com/products/plugin/1.3/plugin-install.html"><NOEMBED></COMMENT>

</NOEMBED></EMBED>
</OBJECT>

<!--"END_CONVERTED_APPLET"-->



</BODY>
</HTML>


thanks




0
Comment
Question by:sanjay_thakur
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6 Comments
 
LVL 1

Expert Comment

by:dviji
ID: 6397372
How you are loading the gif file... If you do any system dependent operation
then only you will get security exception...There is nothing special about Gif. I hope
you are doing some system dependent operations....i.e trying to access the client
system.

Try with this code...

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

public class MyApplet extends Applet
{
   Image image = null;

   public void init()
   {
      image = getImage(new URL(getCodeBase()+"image.gif"));
   }

   public void paint(Graphics g)
   {
      g.drawImage(image,1,1,this);
   }
}

Make sure your image.gif should available in the directory where you are keeping
your class file or in the jar.

If this one also gives an exception let me know.

dviji
0
 

Accepted Solution

by:
sandeepkhandelwal earned 40 total points
ID: 6404233
You need to set the permissions. Run policy tool and make a policy file granting all permissions. Save the file as .java.policy in your windows folder (if you're using Win98 or Win95) else in your profiles folder (WinNt\Profiles). And then try to run the same applet, it will work.

Just let me know, in case of any other problem. Hope this helps
0
 
LVL 4

Author Comment

by:sanjay_thakur
ID: 6408110
Hi,

I have a structure problem

I mean I have many packages in my application

I have my class files
in  "c:/ariogui/classes/com/ario/gui/design/

I have my html file
  in "c:/ariogui/classes/

now I am able to run using "getClass.getResource("image name");

but I have to put all the gif files in the same place
as the classes

i.e all my gif files are in this directory
in  "c:/ariogui/classes/com/ario/gui/design/

My question is
If I want to put gif files in say "c:/ariogui/src"

then How do I get the images
using getClass.getResource();

I tried putting the path
like
getClass.getResource("c:/ariogui/src/image name");

but doesnot work

any help?










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Expert Comment

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ID: 6728030
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ID: 6956134
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LVL 4

Author Comment

by:sanjay_thakur
ID: 6961043
Thanks

I was not able to initially solve this
because I had nultiple copies of policy files

But I figured that out

Thanks for help
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