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Index › Programming Questions & Help › Programs › Applet issue
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Applet issue (Read 1213 times)
scen_hjord
Applet issue
May 14th, 2010, 1:36pm  
I am hoping that this will be an easy question.  Please keep in mind that I have no formal programming training.

My sketch imports data from a web page.

I have exported the sketch and the jar file runs just fine.

But the index.html does not run.  The setup will run, but it locks up when it gets into the draw.

Is this just a signature issue?  
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PhiLho 
Re: Applet issue
Reply #1 - May 15th, 2010, 1:06am  
Two things:
- Yes, it can be a matter of signing the applet if the Web page you access is on a different server.
- You can see errors in the Java Console, you have to activate it, either as settings of your browser, or as settings of your Java JRE (eg. on Windows, via the Java icon in the Control Panel).
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scen_hjord
Re: Applet issue
Reply #2 - May 17th, 2010, 8:18am  
From my Java Console:
ception in thread "Animation Thread" java.security.AccessControlException: access denied (java.net.SocketPermission www.transmission.bpa.gov:80 connect,resolve)
     at java.security.AccessControlContext.checkPermission(Unknown Source)
     at java.security.AccessController.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkConnect(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.http.HttpClient.<init>(Unknown Source)
     at sun.net.www.http.HttpClient.New(Unknown Source)
     at sun.net.www.http.HttpClient.New(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
     at java.net.URL.openStream(Unknown Source)
     at processing.core.PApplet.createInputRaw(PApplet.java:4062)
     at processing.core.PApplet.createInput(PApplet.java:4031)
     at processing.core.PApplet.loadStrings(PApplet.java:4262)
     at met_demo_app.draw(met_demo_app.java:40)
     at processing.core.PApplet.handleDraw(PApplet.java:1425)
     at processing.core.PApplet.run(PApplet.java:1327)
     at java.lang.Thread.run(Unknown Source)
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scen_hjord
Re: Applet issue
Reply #3 - May 28th, 2010, 9:52am  
This is frustrating.  Processing is so easy, why is signing applet so hard?

I have downloaded the Java SDK.
I followed Ira's instructions
http://processing.org/hacks/hacks:signapplet

It still doesn't work.  In fact after signing, the applet stops working alltogether.

I don't know what to do next, any sugestions?
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