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POParsing a JSON object (list of object) through Javascript and loop in it?
 

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  1. POParsing a JSON object (list of object) through Javascript and loop in it?
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    <p>Ok, I know there's something wrong but I can't understand what.</p> <p>I read an ArrayList of Service (in JSON mediatype) from a web service that I wrote. Going to that address returns me the json string.</p> <p>Now I'm trying to make a web page for showing that values and seeing the changes making to the page a request every 3 secs.</p> <p>How can I parse it, or use it? Read lot and more and I'm still to the start..</p> <p>[Is not possible to pass this object to the JSP and parse, loop and everything with JSTL? That would be awesome!]</p> <p>Here the js code:</p> <pre><code> &lt;script type="text/javascript"&gt; setInterval(function(){ $.ajax({ url: "/MyApp/rest/display", success: function(data){ var objs = $.parseJSON(data); $.each(objs, function(i,service) { $("#service").append('&lt;p&gt;'+service+'&lt;/p&gt;'); }); }, dataType: "json"}); }, 3000); &lt;/script&gt; </code></pre> <p>I've a <code>&lt;div id="service"&gt;</code></p> <p><strong>EDIT:</strong> Almost there!</p> <p>Now I've this:</p> <pre><code>&lt;script type="text/javascript"&gt; setInterval(function(){ $.ajax({ url: "/myApp/rest/display", success: function(data){ $.each(data, function(i,service) { var cont = 1; var newdiv = document.createElement('div'); newdiv.setAttribute('id', "service"+i); $("#service"+i).html('&lt;p&gt;'+service.serviceId+" "+service.queue.lastNumber+'&lt;/p&gt;'); document.getElementById("services").appendChild(newdiv); cont++; }); }, dataType: "json"}); }, 5000); &lt;/script&gt; </code></pre> <p>It gets the updates and all (nice!) but I've one problem: <em>it keeps creating new divs</em> inside the bigger one (empty divs). How can I avoid this?</p> <p><strong>EDIT2:</strong></p> <p>Nevermind, I've done! Just add this line before the appendChild:</p> <pre><code>if(!$("#service"+i).length) </code></pre> <p>Works like a charm. Thanks!</p>
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