jQuery ajax call data param issue in spring mvc environment

Question

I am new to the jQuery and currently trying to implement an ajax call which will permanently poll the server and request some data. The ajax is working fine as i was able to hit my server side controller method however after adding a data: gameLink param it is stopped working. Here is my jQuery function:

window.setInterval(pollActiveParticipants, 10000);
    function pollActiveParticipants() { 
        $.ajax({
            type: "GET",
            url: "pollActiveParticipants",
            data: {"gameLink": $gameLink },    //this is where i need help! 
            dataType: 'json',
            success: function(data){
                $.each(data, function(index, value) {
                    '<p>' + value.username + '</p><br>';
                });
            }
        }); 
    }

The $gameLink is present on the jsp as few lines below i am using it as

<br>
 Other participants can access the game on the following url: &nbsp; ${gameLink} 
<br>

What is the correct syntax to add the $gameLink as request param or what I am doing wrongly?

you are welcome. It avoids complexity.

Vinoth Krishnan
– Vinoth Krishnan

2014-01-16 08:40:16 +00:00
Commented Jan 16, 2014 at 8:40 — Vinoth Krishnan
– Vinoth Krishnan, Commented Jan 16, 2014 at 8:40

Vinoth Krishnan · Accepted Answer · 2014-01-15 11:59:49Z

2

Have you tried like this?

function pollActiveParticipants() { 
 var gameLink = '${gameLink}';

 //Make sure it is having the value here.
 //alert(gameLink); or console.log(gameLink);

    $.ajax({
        type: "GET",
        url: "pollActiveParticipants",
        data: {"gameLink": gameLink },   
        dataType: 'json',
        success: function(data){
            $.each(data, function(index, value) {
                '<p>' + value.username + '</p><br>';
            });
        }
    }); 
}

or

var gameLink = '${gameLink}';    //previously '<%=gameLink %>', not recommended 
url: "pollActiveParticipants?gameLink="+gameLink,
dataType: 'json', 
...

Hope this helps.

answered Jan 15, 2014 at 11:59

Vinoth Krishnan

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3 Comments

shippi Over a year ago

Works fine. Why it needs to extract to a separate variable and using of the variable inside of the jquery? But yeah thanks for the answer.

nickdos Over a year ago

It doesn't - did you try my answer below (posted first BTW)?

shippi Over a year ago

@nickdos - The part var gameLink = '${gameLink}';data: {"gameLink": gameLink }, is working fine for me and if I alert the gamelink it writes me the correct output. But yes as soon as i'll get a chance, i'll try what you suggested as it is quite elegant solution also. I appreciate both of you answers guys!

nickdos · Accepted Answer · 2014-01-15 00:32:53Z

1

I'll take a stab and guess $gameLink is a GSP var and not a JS var... In which case you need to string quote it thus:

data: {"gameLink": "${gameLink}" },

answered Jan 15, 2014 at 0:32

nickdos

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