The intention is to use an Applet which call's servlets to read and update
data on our AS400. I call the Applet through an HTML-page. In the
statusbar of explorer I can see that classes used by the Applet are loaded,
however it is so fast I can't read them all. At a certain point I get an
error that this Applet can't be instantiated. Do you know if a log exists
where one can see which classes are loaded ?
Here's is the Applet-method which call's the servlet and returns the data I
need :
public TimeSheetScreenData sendPostMessage(Serializable obj) throws
java.io.IOException
{
try
{
URL url = new URL(getCodeBase
(),"/servlet/timesheets.STimeSheetController");
URLConnection con = url.openConnection();
// Prepare for both input and output
con.setDoInput(true);
con.setDoOutput(true);
// Turn off caching
con.setUseCaches(false);
// Set the content type to be java-internal/classname
con.setRequestProperty("Content-Type", "java-internal/" +
obj.getClass().getName());
// Write the serialized object as post data
ObjectOutputStream out = new
ObjectOutputStream(con.getOutputStream());
out.writeObject(obj);
out.flush();
out.close();
// Read the response
ObjectInputStream in = new ObjectInputStream(con.getInputStream
());
return (TimeSheetScreenData)in.readObject();
}
catch (Exception e)
{
e.printStackTrace();
}
return null;
}
Because of security-related problems, we try to combine a
APPLET-SERVLET combination to run a little AS400-application. I
created the java-applet and servlet in VAJAVA (WDT400) where no errors
exists anymore. I can run the applet from within VAJAVA, although
only till the servlet needs to be loaded. (question 1)
1) How do I test this within VAJAVA. I can start the servletengine
but don't know what to do next....
2) I moved all files to the WebServer and tried to load the applet
from the WebServer. Following error is shown in java-console :
com.ms.security.SecurityExceptionEx[timesheets/ATimeSheets.<init>]:
java.io.IOException: bad path: C:\WINNT\Java\lib\swing.properties
at com/ms/security/permissions/FileIOPermission.check
at com/ms/security/PolicyEngine.deepCheck
at com/ms/security/PolicyEngine.checkPermission
at com/ms/security/StandardSecurityManager.chk
at com/ms/security/StandardSecurityManager.checkRead
at java/io/FileInputStream.<init>
at java/io/FileInputStream.<init>
at javax/swing/UIManager$3.run
at javax/swing/SwingUtilities.doPrivileged
at javax/swing/UIManager.loadSwingProperties
at javax/swing/UIManager.initialize
at javax/swing/UIManager.maybeInitialize
at javax/swing/UIManager.getUI
at javax/swing/JPanel.updateUI
at javax/swing/JPanel.<init>
at javax/swing/JPanel.<init>
at javax/swing/JRootPane.createGlassPane
at javax/swing/JRootPane.<init>
at javax/swing/JApplet.createRootPane
at javax/swing/JApplet.<init>
at timesheets/ATimeSheets.<init>
at com/ms/applet/BrowserAppletFrame.newInstance
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.run
at java/lang/Thread.run
java.lang.InstantiationException: timesheets/ATimeSheets
at com/ms/applet/BrowserAppletFrame.newInstance
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.run
at java/lang/Thread.run
I'm pretty sure the classes are in the correct folders, however the file
swing.properties does not exist !
any help welcome...
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