In the last week I worked with Java Web Start. I can successfully start applications and applets with JWS. But for one project I have to determine how to start multiple applets via JWS, which should not open in browser but in appletviewer.
My searches always came to one result: Appletviewer can only be started over command line. Is that right? Is there no possibility to give an instruction in my HTML page or something like that, which would bring the applet to be started with the appletviewer?
Edit:
Ok, for all those who could search for this in future:
Appletviewer is only for development purposes and the only way to start it is the command line command:
appletviewer myAppletSite.html
But if you really want to start it automatically, you could write an java application to run this system command:
Runtime.getRuntime().exec("appletviewer myAppletSite.html");
My searches always came to one result: Appletviewer can only be startet over commandline. Is that right?
No! In fact, if you launch an applet non embedded using Java Web Start, the JWS client will use the applet viewer to display it.
Related
I am using php. My question is i would like to run a java app that i created and put its jar file in the client side.I would like to run this jar file which is in the client side or ie, in the user desktop with a button click on a HTML page. Is this possible to run it with javascript or with any other web technologies.
Thanks And Regards,
AlenLee MJ
Have a look at Java Web Start. This is a technology to let you start Java applications from the browser that are automatically downloaded from the server.
Alternatively, you could make your program a Java applet, which is a Java program that runs inside the browser.
There is an applet on a HTML page. That applet loads a dll library and communicates with an external application through it. I can successfully load and work with that library. That library has functions INIT() and DEINIT().
The issue is when I try to call those functions again, the external app/library says that there is only one process can access to that app. It is an internal check. So I need a way to stop the Java process in order to start the app once again. But if I start the applet once, the Java process doesn't finished until I close the browser tab (or even the whole browser).
Is there a way to stop the Java process in the scope of the browser tab? And I need Java to start as soon as applet in the HTML page will appear.
You can't stop the JVM from the applet, it's managed by the browser.
You might consider switching to a Java Web Start application instead, it's started in its own VM.
Hello I Create a Java applet and run successfully (when press button the notepad Run) form netbeans but when run the Application from web page the notpad.exe cannot be run
a Java applet run by default in a "sandbox" that means, it can't access to the user's file system and program.
When you try it, in your netbean, it's different because the "sandbox" isn't apply.
What Applets Can and Cannot Do
Maybe it's not allowed for java applets to run notepad on user's computer ?
You have to get applet signed, so that you can access Native programs(.exe). Like said above, Currently its working in sandbox mode. sign the applet and it will work
I have a Java program that runs from command prompt / blueJ's terminal window fine.
Is there a way that I can run this from a browser?
I guess my question is, is there anything that simulates the terminal window in a browser?
If not, do you have a suggestion as to how to put this online? It uses scanner / system.out.println a lot.
Thank you
There are two main technologies for helping publish a Java application via a browser:
Applets (displays inside a browser, kind of like Flash)
Java Web Start (launches via browser, but then runs and displays in a separate window.)
It most most common to use Swing to develop the user interface of an Applet or Java Web Start application. So it might be interesting to read about how to emulate a console window in Swing.
I'm not sure if this helps, but when you access a website that uses Java, with your browser, you can decide to see the Java console, if you have it enabled in your Java settings. But only people with that option turned on will get to see it.
Otherwise you could use javascript to incorporate results into the html of the page, or maybe make an applet with a "console" included.
You can embed in an applet, not only GUI you can use applets to invoke any method. And you can view console view ,[ Java Icon pops up on system tray bar in windows,on right clicking on the java icon, you can view console ]
How can I execute a desktop application from a browser?. I have a web page with a button, when user click this button a simple java desktop application must run. How can I do this using jsp or javascript?
Java Web Start might be your solution.
To start a Java Web Start application, you simply direct the browser to the location of the JNLP file. Basically, the browser detects that instead of simply downloading the file, it should run it in Web Start.
Most major browsers support Java Web Start. Java Web Start is cross platform (works on Mac and PC).
So, in Javascript, it's done simply like this:
window.location = "http://www.examples.com/myapp.jnlp";
You'll also need to sign your Java application, or the user will get a nasty warning.
You should take a look at the Java Web Start technology.
This would be the closest thing: Java Web Start
Managing this through Applets is another option though the underlying scheme is the same, the user needs to accept the generated certificate.