Applet xml file handling

Long time application coder, first time appplet coder:
I have an xml file that needs to be read by my applet (it contains a database).
I'm trying to use this:
URL url = new URL("http://(the file on my webpage)");
XMLDecoder decoder = new XMLDecoder(new BufferedInputStream(url.openStream()));Which gives me the error:
java.security.AccessControlException: access denied (java.net SocketPermission ...)
Anyone have an idea what I'm doing wrong? I've tried several different things which don't seem to work.

This is due to the security feature of Java. In order to solve your problem, you need to sign your Java Applet, or setup the security policy by the policytool in the client side.
For more information, please read:
http://java.sun.com/docs/books/tutorial/deployment/applet/security_practical.html

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Im working on File to file scenario.
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What sort of prerequisites I need to do before processing this file.
I maintained the source file structure similar to xml file structure, do I need to maintain same attributes/tag names of source file in source format?

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<u>My source file is:</u>
<ABC xmlns = "http" xmlns:xsi="http" xsi:scemaloc ="https"
<Docheader>
<Docdetail> 1..n
<docsummery>
</ABC>
I created the source format as follows:
<Recordset>
<Docheader>
<Docdetail>1..n
<Docsummery>
</recordset>
<u>Problem:</u>
Problem is when i map these source file to target flat file.the source fileds are suppressing.
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I've just finished trying it out, here is what I did:
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java.net.URL fileURL=this.getClass().getResource(xmlDocName);
private final String fileName = fileURL.toString().substring(6);
The substring removes the "file:/" from the URL.
This works fine in the IDE, I have even stored the xml file in a lower folder e.g. package_folder/xml_folder/filename.xml and replaced the xmlDocName with "xml_folder/filename.xml" and it worked fine.
I haven't tried it in an applet because I'm running IE and as you are well aware there are problems with swing and IE applets. But you answer deserves the Duke Dollars, thank you very much.

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Hi.
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Nevermind.. I figured it out after a few thoughts.

Is this a good way for loading and handling an xml file?

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Does it seem to you a good way to load the nodes of a xml file in a relation database?
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<tt:transform xmlns:tt="http://www.sap.com/transformation-templates"
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<tt:type name="REPORT" line-type="?">
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<tt:node name="JOB_ID" type="C" length="20" />
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simple transformation to accommodate these possibilities?
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<ExportType exporttype='csv' />
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Applet xml file handling

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