is that any sample code for Ajax which implement in jsp ?

[Nakata kokuyo]

hi, good day, is there any simple sample code for ajax implementation in java environment ? for example, checking existing product code in database

thank you

[Surya Kant]

Hope this would help you...

function validate(url)
{
if (window.ActiveXObject)
{
request = new ActiveXObject("Microsoft.XMLHTTP");
request.onreadystatechange = checkForResult;
if(request)
{
request.open("GET", url);
request.send();
}
}
}

function checkForResult()
{
// If req shows "loaded"
if (request.readyState == 4)
{
// if response is "OK"
if (request.status == 200)
{
//this is a response sent from server program
//get this reponse & do the operations accordingly
var response = request.responseText;
}
// Server not responding . It might have been stopped
else
{
//stopScripts('Server not Responding');
}
}
}

function setURL()
{
if(validatePass())
{
var url = form some url which u want send to server
validate(url);

}
}

[Gerardo Tasistro]

Try DWR

http://getahead.ltd.uk/dwr

Very easy to use. You just include the libraries as explained, setup some classes in your server and do some configuration. In a few minutes you'll be able to call your classes' methods from JavaScript.

See this

http://getahead.ltd.uk/dwr/examples/address

[Eric Pascarello]

surya mm,

your code is IE only......better make it work with all browsers!

Eric

[Nakata kokuyo]

thanks all for warm reply and guidance