Load local resource in applet

Use the object tag in your html page.

Looks like all steps have been done correctly including using the policy in the

appletviewer command

Here is an example that should open in the browser without a problem:

http://forum.java.sun.com/thread.jsp?forum=63&thread=409341

4th post explaining how to set up your own policy with your own keystore

Since your applet does not seem to be using any classes that are not allready part of

the signed applet or rt.jar this is not a stack problem. Assuming XMLParser is a class

within your signed applet.

Signing applets (stack problem):

http://forum.java.sun.com/thread.jsp?forum=63&thread=524815

second post and last post for the java class file

harmmeijera at 2007-7-11 1:56:35 >

If the applet needs to read a file that is on the same server as the applet use URL and

URLConnection:

String myXMLFile = openURL((new URL(this.getCodeBase(),"../relativePathToXMLFile/xmlFile.xml")).toURI.toASCIIString())

public void openURL(String urlpath) {

// it is VERRY importaint to read the entire response

// if you want to connect to the same server again

// this is because closing the inputstream does not close the socket

// and response data from a previous request could be mixed up with the current

InputStream is;

byte[] buf = new byte[1024];

URLConnection urlc = null;

try {

URL a = new URL(urlpath);

urlc = a.openConnection();

is = urlc.getInputStream();

int len = 0;

ByteArrayOutputStream bos = new ByteArrayOutputStream();

while ((len = is.read(buf)) > 0) {

bos.write(buf, 0, len);

}

// close the inputstream

is.close();

} catch (IOException e) {

try {

// now failing to read the inputstream does not mean the server did not send

// any data, here is how you can read that data, this is needed for the same

// reason mentioned above.

((HttpURLConnection) urlc).getResponseCode();

InputStream es = ((HttpURLConnection) urlc).getErrorStream();

int ret = 0;

// read the response body

while ((ret = es.read(buf)) > 0) {

}

// close the errorstream

es.close();

} catch (IOException ex) {

// deal with the exception

}

}

}

harmmeijera at 2007-7-11 1:56:35 >

> 1. getCodeBase() is the method of what class?

this.getCodeBase() google would have told you this is a method of the applet of wich

your class is a subclass.

> 2. If the xml file is under the same directory of the applet class. How can I locate it?

>URL url = new URL("file://myXML.xml");

new URL(this.getCodeBase(),"myXML".xml");

> 3. After the URL is connected, is that mean I need to read every byte and put it into a

> File instance that can be parsed by DocumentBuilder.

http://java.sun.com/j2se/1.5.0/docs/api/javax/xml/parsers/DocumentBuilder.html

http://java.sun.com/j2se/1.5.0/docs/api/javax/xml/parsers/DocumentBuilderFactory.html#newDocumentBuilder()

... These input sources are InputStreams, Files, URLs, and SAX InputSources.

The api doc fails to explain how to do that but that's someting we all need to get used

to I guess. (both pages allso con't contain URL so I would not know how to cursturct

or what method to call to pass the URL)

harmmeijera at 2007-7-11 1:56:35 >