If you're using Netscape, you can use LiveConnect to talk to JavaScript
from a Java applet and vice-versa.
In your applet you'll need to do something like this:
import netscape.javascript.*;
import java.util.*;
public class MyApplet extends java.applet.Applet {
JSObject window;
Hashtable formHash = new Hashtable;
public void init() {
super.init();
// enable communication with the browser, if necesary
window = JSObject.getWindow(this);
// now you can call a JavaScript function with something like:
// window.call("someJavaScriptFunction", someParameter);
}
// add public methods accessible to JavaScript in HTML page...
public void setFormData(String elementName, String elementValue) {
formHash.put(elementName, elementValue);
System.err.println(elementName + ": " + elementValue);
}
}
Then, in your HTML page, you'll need some JavaScript to talk to the
applet:
<HTML>
<HEAD>
<script language="javascript">
function sendFormData() {
// assuming you only have one applet in the page...
var client = document.applets[0];
for (var i=0;i<document.forms[0].elements.length;i++) {
client.setFormData(document.forms[0].elements[i].name,
document.forms[0].elements[i].value);
}
}
</script>
</HEAD>
<BODY>
<FORM name="f1">
<input type=text name="t1" size=10><BR>
<input type=text name="t2" size=10><BR>
<input type=text name="t3" size=10><BR>
<input type=button name="b1" value="Send Data To Applet"
onClick="sendFormData();"><BR>
</FORM>
<APPLET name="app1" code="MyApplet.class" width=0 height=0 MAYSCRIPT>
</BODY>
</HTML>
When you javac the applet, you'll need to have the netscape classes in
your classpath (i.e. /your/netscape/path/java/classes/java40.jar).
You can test the code above by viewing the Java Console in Netscape
when you submit the form. Hope this helps.
-Rob
On Thu, 14 Jan 1999 [EMAIL PROTECTED] wrote:
> can java applet read and write data form or to a form of HTML?
> How to do? Please tell me.thank
>
