Understanding the JSON output received from the Servlet

So, I have a Java Servlet set up to return JSON data in Application/JSON format using the GSON library. The GET method of the Servlet requires an ID parameter. When I send a request with BookingID as 1, Chrome shows the AJAX response like this:


    0: {WidgetID:46, BookingID:1, X:393, Y:50, Content:Test1}
    1: {WidgetID:47, BookingID:1, X:337, Y:251, Content:Test2}
    2: {WidgetID:48, BookingID:1, X:97, Y:198, Content:Test3}

The issue I'm facing is how to properly parse this response in my JavaScript code. Here's what I currently have:

    loadPositions() {
    var BookingID = 
    if (BookingID != null && BookingID != "null")
    {
    var data = {"id" : BookingID};
    $.getJSON("Widget", data, function(data) {
    // Successfully got all this bookings widgets as JSON, TODO: Parse this!
    });
    }
    }

What should I do in the "TODO: Parse this!" section? I need to loop through each element and extract their data. Any help on jQuery would be greatly appreciated.

javascriptjqueryajaxjsonservlets

Answer №1

If you're working in the task list area, make sure to implement the following code to iterate over all of the arrays:

$.each(data, function(index,value){
    // When index=0 and value.WidgetID=46, value.BookingId=1, feel free to utilize them as needed.
})

Answer №2

Check out the jQuery .each() method for iterating over elements.

http://api.jquery.com/jQuery.each/

For a practical demonstration, see the following example:

http://api.jquery.com/jQuery.getJSON/

$.getJSON('ajax/test.json', function(data) {
  var items = [];

  $.each(data, function(key, val) {
    items.push('<li id="' + key + '">' + val + '</li>');
  });

  $('<ul/>', {
    'class': 'my-new-list',
    html: items.join('')
  }).appendTo('body');
});

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