Displaying a webpage in a JEditorPane from a JApplet
Hi.
I am trying to display a webpage in a JEditorPane from an a JApplet.
I've tried.
try {
URL url = new URL("http://www.yahoo.com");
jEditorPane1.setPage(url);
} catch(Exception e) {e.printStackTrace();}But I got an AccessControlException:
java.lang.RuntimeException: java.security.AccessControlException: access denied (java.net.SocketPermission www.yahoo.com:80 connect,resolve)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
at javax.swing.JEditorPane.getStream(Unknown Source)
at javax.swing.JEditorPane.setPage(Unknown Source)
at DisplayDialog.<init>(DisplayDialog.java:21)
at TestFrame.jButton2ActionPerformed(TestFrame.java:477)
at TestFrame.access$200(TestFrame.java:15)
at TestFrame$3.actionPerformed(TestFrame.java:432)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.security.AccessControlException: access denied (java.net.SocketPermission www.yahoo.com: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)
... 31 more
I seem to recall something about an applet only being allowed to access pages on the same server. Is there any way to display an external webpage in a JEditorPane? Thanks.
Unless you sign the applet's jar, you can only fetch urls from the same host as the applet was downloaded from. Part of the sandbox security restrictions.
So go look up jarsigner for details.
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Could you please help me in this?
Thanks,
Raja.Raja,
There are two options here :
1) The correct one is to go via concurrent program , because as per web standards a web page should not take max of 3-4 minutes to render.
2) If you still wanna go via your present approach, you need to set profile ICX:Session Timeout which specifies Maximum idle time for the Oracle Applications user session(specified in minutes).
--Mukul
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