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PONeed help getting this Spring 3/AJAX/JSON drop down population working
 

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  1. PONeed help getting this Spring 3/AJAX/JSON drop down population working
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    <p>I am trying to do a Spring MVC 3 ajax call to populate a drop down from json serialized data.</p> <p>The problem I am seeing is I am not sure what format of JSON Spring is returning for my list, and why.</p> <p>The method which returns the Ajax data looks like this:</p> <pre><code>@RequestMapping(value="/getMyObjects", method=RequestMethod.POST) @ResponseBody public List&lt;MyObject&gt; getMyObjects () { List&lt;MyObject&gt; myobjects = // populate list return myobjects; </code></pre> <p>}</p> <p>And as far as I understand that should be all I need to do, right? </p> <p>In my app logs I see it is indeed converting the response to JSON, as follows:</p> <p>2012-06-20 11:08:21,125 DEBUG (AbstractMessageConverterMethodProcessor.java:139) - Written [[MyObject [id=1376, name=Something test], MyObject [id=1234 name=More test]]] as "application/json;charset=UTF-8" using [org.springframework.http.converter.json.MappingJacksonHttpMessageConverter@d1b7e5]</p> <p>But that JSON string looks odd to me, is that valid?</p> <p>I was expecting stuff like [{ id : 1376, name="Something test"}, { id : 1234, name="More test"}]</p> <p>On the client side when I get the response and do an alert I see it says its an array of objects like this: [Object object] [Object object] and I dont know how to deal with this data.</p> <p>I try: alert(data); -- gives the output I just described above $(data).each(function() { alert(this.id); // undefined! });</p> <p>How do I use this kind of JSON data or how do I convert it to something more manageable?</p> <p>[Edit] Attaching my client side code with current alert responses I am trying: $.ajax({ type : "POST", url : "getMyObjects", success : function(data) { alert(data); // [Object object] [Object object] alert(data.value); // Undefined $(data).each(function() { alert(this.id); // Undefined for each iteration }); }, error : function (XMLHttpRequest, textStatus, errorThrown) { alert(textStatus); } });</p>
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    1. COI think that is correct, your response will be object. try something like alert(data.value);
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      1. PONeed help getting this Spring 3/AJAX/JSON drop down population working
      1. USkosa
    2. COCould you post a sample JSON output from your call to getMyObjects?
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      1. PONeed help getting this Spring 3/AJAX/JSON drop down population working
      1. USAndre
    3. COAndre, yes its in the post but a bit buried in there ;) here it is isolated: [[MyObject [id=1376, name=Something test], MyObject [id=1234 name=More test]]]
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