I do not think this is possible, but I'd like to confirm. If I have an HTML page that has an embedded Java applet, and that applet in turn renders an HTML document (within the applet window), is the HTML *within* the applet part of / accessible through the DOM for the parent page?
View RepliesI am quite new to developing Applets in java. I recently made an applet that will play a particular sound whenever a button is pressed. The sound files are placed in the same directory as the applet class file and i access them by using
AudioClip clip=getAudioClip(getCodeBase(),"A.wav").
The Applet runs fine in the appletviewer but whenever I try to open it using any browser like Chrome,IE,Firefox the applet loads but sound isn't played. I checked the java console and it showed
"java.security.AccessControlException: access denied ".
My questions are:
1. How do I allow the applet to get access to those files?
2. When the Applet is running from the local file system why CAN NOT I access those resources via getCodeBase() ???
3. I googled and found that I can sign a JAR and that can have full access to the computer. But how do I create a JAR from an applet (which has no Main method) while it asks me to point to the main class in the manifest?
I know that the simple deployment using only applet tags inside HTML causes severe security restriction for the applet on the client side. but can this simple HTML file contains .jar files inside the applet tags instead of .class files.
View Replies View RelatedI have an applet which I want to embed into HTML. In applet viewer in Eclipse IDE the view is this(see pict01), and when I access my index.php on local server I get this view(see pict02). I don't know what I am doing wrong. I checked it with Firefox, IE and chrome. No changes. Here is source code:
import java.util.*;
import java.io.*;
import javax.swing.*;
import java.awt.*;
import java.applet.*;
import java.net.URL;
public class WCURL extends JApplet {
//static final int WIDTH = 8;
//static final int HEIGHT = 12;
[Code] ......
I have these files in my local servers folder where I am trying to access it from(see pict03).
I have tried running the java application without adding the site to site list in java security tab. But I get a sand box message as APPLICATION BLOCKED BY SECURITY SETTINGS. How to run the java application without adding the site to site list in java security tab.
View Replies View RelatedI am new to applets, and my manifest file is:
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.3
Permissions: all-permissions
Created-By: 1.6.0-internal (Sun Microsystems Inc.)
Name: com/myPackage/test/client/TaskApplet.class
SHA1-Digest: pLmraui35IkgfAq+v3WGj1LwCYQ=
The error I get is as follows...When the page is loaded I get the following error: java.lang.SecurityException: class "com.myPackage. test.client. TaskApplet" does not match trust level of other classes in the same package
this is what I clobbered together for the O'Reilly Java 2 Course, final assignment. There may well be several issues still with this code, my main grief at the moment is: The mouseReleased does not react (it did in the assignment I lifted it from and made only minor changes). No matter where I click on the grid, nothing happens.
import java.awt.event.MouseAdapter;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.Container;
[code]....
We are using an applet in our web application. The applet of our application is dependent on bouncycastle jar,bcprov-jdk15.jar and few other jar's whose size comes around 4 mb. When using the appliaction on jre7, the applet is taking too long time to load than usual time. Is there any way to place these jar's in client machine? Will it improve the performance? Is there any other way to reduce the loading time of applet apart from placing jars in client machine?
View Replies View RelatedI have a simple applet that doesn't stray outside the sandbox. It used to work fine before Java 7 but now it craps out with security warnings. It does nothing but play a game, it doesn't even save the state of the game. This is the applet, it's a very simple chess program.
The warnings and popups I'm getting are:
activate javaTM platform SE 7U?allow now?activation blocked by security settings - I never changed any security settings and as I said, this applet stays firmly in the sandbox so I can't see what the issue is.Viewing the java error window I see
Java Plug-in 10.51.2.13
Using JRE version 1.7.0_51-b13 Java HotSpot(TM) Client VM
User home directory = C:UsersMike
----------------------------------------------------
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
[code]....
why it shows the C:UsersMike directory in the above listing, there is no access to files etc.The applet plays fine if I run it in appletviewer.What do I need to do to make this simply work in anyone's browser? I have a similar problem with a (rather funky) Connect 4 program I wrote. It worked fine for years and then just stopped with the Java 7.
I'm developing an Applet that print a bar code using Jpos API. I need some jars and two configuration file. I've added jars to the classpath and configuration files in src directory. In Eclipse everything works fine.
DefaultProperties prop = new DefaultProperties();
prop.loadJposProperties();
SimpleXmlRegPopulator xmlReg = new SimpleXmlRegPopulator();
xmlReg.load(wincor.jpos17.THxxx.xml");
Everything works fine in Eclispe but I can't find property files when i call the applet from a web page. So I've checked the JavaPos sources and I've paste the loadJposProperties() and xmlReg.load("wincor.jpos17.THxxx.xml") content in my source code:
InputStream isD = prop.getClass().getClassLoader().getResourceAsStream(prop.JPOS_PROPERTIES_FILENAME); // (1) content of loadProperties
if (isD != null){
System.out.println("jpos/res/jpos.properties found");
[Code] ...
The same method is used to found wincor.jpos17.THxxx.xml. So when I call applet form the browser I get INPUT STREAM FROM PROPERTIES OK!! from (1) and jpos/res/jpos.properties not found from (2).
So getClass().getClassLoader().getResourceAsStream works if i write it directly in my code, but doesn't work if i call a jar method.
I am currently trying to update a few java applets for a website. As of right now, the applets are automatically blocked on all computers when they are accessed because the newest updates for Java have caused them to be blocked. I have determined that the solution to this is to resign the .jar files that are used to run the application with a new certificate.
I requested and received a certificate (in pkcs 12 format, a .p12 file), imported it into the computer, and used it to sign the .jar files. However, I have been getting an error after signing the .jar files stating that the full certificate chain of the code signing certificate is not valid.
I tried to check the path of the certificate using a method he recommended (using OpenSSL) but didn't really find anything of use.
I'm trying to learn how to Pause/Resume audio in an applet .
View Replies View RelatedThis is what I ended up with and it is not what I want.
How do I convert this to an applet that would run independently on a desk top out of all these shells?
[URL]
So I have an applet and in the first ScrollPane you have a number of options of businesses
The Centre
IMAX
etc ..
and when you click one , the other scrollpane shows office
so when i choose "The Centre" for example , in the right scrollpane it shows : "Head Str." "Downtown" etc
i can fill in the first scrollpane with:
void myInit() {
DefaultListModel model = (DefaultListModel)businessList.getModel();
model.removeAllElements();
try {
ArrayList<Business> bussinesses = contr.getBusiness();
[code]....
but this gives me a NullPointerException on
ArrayList<Office> offices= business.getOffices(name);
which i don't understand, since business isn't null .. it's the selected value.
I bought a certificate to sign my jars, if a deploy my applet in a html file with out framework, just html and js, the works great, I can call from javascript all public methods from the applet. The real problem is when I try to deploy the same signed jar on a adf project in Jdeveloper. Does not work at all and java execute some warnings and later applet is block, the message say something like "exist some jars signed and not signed" But I am sure that all jars are signed...
I got this:
applet console:
image
All jars are signed, dependencies too.
I have an applet and start some process on Windows from applet. When I start this process just from another code(test), this code works fine and process runs from rt.exec() to proc.destroy(). When I use html call for applet - process runs only for 5 seconds every time (!!!) and then just alive, doesn't work, to proc.destroy(). This is really interesting for me (newbie in applets). I think, this issue caused by AccessController. I use Windows, medium Java security lever and applet is self-signed. It asks me to 'allow', applet works.Here's the code:
public String startRecording(final String filename) throws IOException {
try {
return (String) AccessController
.doPrivileged(new PrivilegedAction<String>() {
public String run() {
try {
proc = Runtime
.getRuntime()
[code]....
It's FFMPEG process, which records desktop video and writes it to file, maybe AccessController blocks access to file system.
I want to use my implemented toolkit while loading applets. So, I have set the Runtime Parameters
-Dawt.toolkit=org.sug.MyToolkit in Java Control panel.
But when it is not picking MyToolkit, instead its default toolkit sun.awt.windows.WToolkit.
I am able to set it perfectly in Java 6 but it is not working in java 7.
how I can configure an applet to get access to local resources such as file system, browser, etc.
View Replies View RelatedI have been on java applets and it's been fun but I'm stucked with painting a ladybug image on applet using "getImage ( getCodeBase(), "Images/ ladybug.gif") to load the image. It runs but the appletviewer is blank. My applets are not embedded in the web. I just type the codes in eclipse and click the 'run' button.I think the problem is that java is not finding the image in the directory I specified. Please where am I supposed to save the ladybug image so that java can find it on my system whenever I supply the path.
View Replies View Relatedso recently i made an applet and i was gonna put it up on my website when i got an error saying that java had blocked the applet duo to security thingys..sooo i looked in to it and i found out that apparently you need permission from java to run a applet or something like that, because there was a lot of viruses coming from there or something...
so does that mean only big game company's that can actually get permission by java make applets? are applets dead!? is there no other way to play java games in a browser!??!
I have a HTML page with an applet inside it.I have the applet class and all other needed classes in a jar file in jre/lib/ext folder (I'm on windows). But when I open the HTML file in a browser it gives me ClassNotFound exception..The HTML file is this:
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252">
<TITLE>
DPI 3270 Printer Session
</TITLE>
</HEAD>
<BODY topmargin="0" leftmargin="0">
<SCRIPT SRC="HODVersion.js" LANGUAGE="JAVASCRIPT"></SCRIPT>
<P>
[code]....
I have this HostOnDemand class in its package in a jar file in jre/lib/ext but it can't be found.Since the applet is way too old, I'm using jre1.4.2 and netscape.
I have designed an applet to simulate a stack (last-in, first-out) of strings. The applet consists of:
Two JButtons
Two JTextFields
Two JLabels
A TextArea
The user enters text in the first text field then clicks the push button and it goes in the textArea. After entering several strings the user can click the pop button and the top string goes into the second text field. I am a total newbie and am stuck. I can get a string of text to push to the textArea and then pop it out; however I can't stack them LIFO. Most examples I've seen use integers and I'm not sure how to translate the concept to strings. I'm just not sure how the stack concept works even though I read the API webpage.
My code
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;
import javax.swing.JApplet;
import javax.swing.JButton;
[Code] ....
I am trying to write a code where when I press Enter the text in the text box appear on next line of label. However every new text is getting printed on the same line..
Here is my code:
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class ChatBox extends Applet implements ActionListener
{
TextField firstNum, secondNum, resultNum;
Label label1;
[Code] .....
We have a custom authorization in our application login page, authorization by using eToken and java (signed jar classes) and applet as login button on page. It's work fine on older and current java versions like 7u67, 7u71 but it's not work on new java version 8u25.
We write a test class named AuthControl without package, we found that problem is in .jar file path, for example:
&APPLET_VERSION. is a jar file name, uploaded using "Shared Components / Static Files - Create"
<script src="https://www.java.com/js/deployJava.js"></script>
<script>
var attributes = {code:'AuthControl',
archive:'#WORKSPACE_IMAGES#&APPLET_VERSION.', width:132, height:37}; // problem in the path to the .jar file
var parameters = { scriptable:true, mode:'login' };
var version = '1.6';
deployJava.runApplet(attributes, parameters, version);
</script>
Error is:
...
java.lang.ClassNotFoundException: AuthControl
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.initAppletAdapter(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
basic: load: class AuthControl not found.
...
But if we use a direct path to the jar file, it's work fine without errors, example:
<script src="https://www.java.com/js/deployJava.js"></script>
<script>
var attributes = {code:'AuthControl',
archive:'http://example.com/myapplet.jar', width:132, height:37};
var parameters = { scriptable:true, mode:'login' };
var version = '1.6';
deployJava.runApplet(attributes, parameters, version);
</script>
Why this is happens on 8 java version?
I have an encryption utility class. Can i use it some how to encrypt password before submitting form? I heard it can be done using applet.
View Replies View RelatedI have Java 6 and Java 7 installed, if i open an applet in any browser it uses the dll's and from the jre7 folder. I would like it to use the jre6 folder, without uninstalling java7. I tried doing this through the java control panel by adding jre6, checking it as enabled and checking off jre7. It didn't make any diffrence.
View Replies View Related