ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Sockets
}
}
if(str.trim().equals("EXIT"))
{
done = true;
}
}
incoming.close();
}
}
catch (Exception e)
{
System.out.println(e);
}
private void out(String str)
{
printOut.println(str);
System.out.println(str);
}
Save the document to your hard disk as SimpleServer.java and compile it using a Java compiler, which creates a Java
class file named SimpleServer.class.
You can start the XMLSocket server by opening a command prompt and typing java SimpleServer. The
SimpleServer.class file can be located anywhere on your local computer or network; it doesn’t need to be placed in the
root directory of your web server.
If you’re unable to start the server because the files are not located within the Java classpath, try starting the server
with java -classpath . SimpleServer.
To connect to the XMLSocket from your application, you need to create a new instance of the XMLSocket class, and
call the XMLSocket.connect() method while passing a host name and port number, as follows:
var xmlsock:XMLSocket = new XMLSocket();
xmlsock.connect("127.0.0.1", 8080);
Whenever you receive data from the server, the data event (flash.events.DataEvent.DATA) is dispatched:
xmlsock.addEventListener(DataEvent.DATA, onData);
private function onData(event:DataEvent):void
{
trace("[" + event.type + "] " + event.data);
}
To send data to the XMLSocket server, you use the XMLSocket.send() method and pass an XML object or string.
Flash Player converts the supplied parameter to a String object and sends the content to the XMLSocket server
followed by a zero (0) byte:
xmlsock.send(xmlFormattedData);
The XMLSocket.send() method does not return a value that indicates whether the data was successfully transmitted.
If an error occurred while trying to send data, an IOError error is thrown.
Each message you send to the XML socket server must be terminated by a newline (\n) character.
For more information, see XMLSocket.
Last updated 6/6/2012
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