选择单选按钮后调用JSON

Question

Edit:

Json file containing called services.json:

{
"0": "Dog",
"1": "Cat",
"2": "Pony"
}

Html:

   <form class="form-horizontal">
                    <div class="form-group" id="radiobuttongroup">
                        <label for="inputservice" class="col-sm-2 control-label">Service</label>
                            <div class="radio">
                                <label>
                                <input type="radio" class="buttondog" name="optionsRadios" id="optionsRadios1" value="Dog">
                                Dog</label>
                            </div>
                        <label for="inputservice" class="col-sm-2 control-label">&nbsp</label>
                            <div class="radio">
                                <label>
                                <input type="radio" class="buttoncat" name="optionsRadios" id="optionsRadios2" value="Cat">
                                Cat</label>
                            </div>
                        <label for="inputservice" class="col-sm-2 control-label">&nbsp</label>
                            <div class="radio">
                                <label>
                                <input type="radio" class="buttonpony" name="optionsRadios" id="optionsRadios3" value="Pony">
                                Pony</label>
                            </div>
                        </div>
                    <span id="displayresults"></span>

Jquery im trying:

    <script type="text/javascript">
$(document).ready(function() {
     $('.buttondog').click(function(){
        $.ajax({
            url: "services.json",
            dataType: "text",
            success: function(data){
                var json = $.parseJSON(data);
                     $('#displayresults').html(json.dog);
                }
            });
        });
    });
</script>

I tried the code below but for some reason it wouldn't work. This seemed to cut a lot of the irrelevant script, but even this isnt working. I was then intending to make a script for each button using this method. What i wanted was that once the dog radio button was selected, 0 would display in the span, when cat, 1 and when pony 2.

Am i doing something completely wrong?

Thanks

Answer 1

I know that the topic is probably dead, but I think that your problem is in this line var json = $.parseJSON(data); $('#displayresults').html(json.dog); var json = $.parseJSON(data); $('#displayresults').html(json.dog); Your object doesn't have property 'dog', so you have to call it like json[1] or json['1'] .

Answer 2

You can bind to the radio click event using jQuery, then match the value in the label (or change the radio value to the return value - ie 'Dog', 'Fish', 'Rabbit') and then use that to get your "results".

Example:

 var data = { "result1": "Dog", "result2": "Fish", "result3": "Rabbit" }; $('input[name="optionsRadios"]').click(function(){ var radioVal = $(this).val(); // <-- if you change input val var labelVal = $(this).next('label').html(); //<-- get the label HTML // get the correct item from the data object $.each(data, function(k,v){ if(v === labelVal){ // added to results div $('#displaydata').html(k + " " + v); } }); }); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="form-group" id="radiobuttongroup"> <label for="inputservice" class="col-sm-2 control-label">Service</label> <div class="radio"> <label> <input type="radio" name="optionsRadios" id="optionsRadios1" value="Dog"> <!-- <-- Changed value --> <label>Dog</label> </div> <label for="inputservice" class="col-sm-2 control-label">&nbsp</label> <div class="radio"> <label> <input type="radio" name="optionsRadios" id="optionsRadios2" value="Fish"> <label>Fish</label> </div> <label for="inputservice" class="col-sm-2 control-label">&nbsp</label> <div class="radio"> <label> <input type="radio" name="optionsRadios" id="optionsRadios3" value="Rabit"> <label>Rabbit</label> </div> </div> <div id="displaydata"></div> 

[Edit - Info on JQuery .ajax() ]

In your comment, your using jQuery's .getJSON() function. Per the documentation this is just the shorthand equivalent to:

// example:
$.ajax({
  dataType: "json",
  url: url,
  data: data,
  success: success
});

... where:

Data [ data ] that is sent to the server is appended to the URL as a query string. If the value of the data parameter is a plain object, it is converted to a string and url-encoded before it is appended to the URL.

Please take a look at both the .getJSON() documentation [linked above] and .ajax() documentation .

Below is some pseudo-code that effectively describes how you could handle getting an ajax result and displaying it using jquery:

[ Note - if you have further questions specific to ajax or need help troubleshooting your request, please open that topic as a new question and provide an example of what you've tried ]

 // psuedo code for ajax request // setup: // global variable for results object so it can be used by other functions // inentionally left as 'undefined' for debugging: var results; // radio click event: $('input[name="optionsRadios"]').click(function() { var radioVal = $(this).val(); //see helper function below // adds response objec to 'results` variable getObject(radioVal); $('#displaydata').html(results); }); // seperate function for ajax call function getObject(id) { var reqData = { "id" : id }; // fake ajax: $.ajax({ dataType: "json", url: "/objContoller/", data: reqData, success: function(data){ // here's where you handle success! // data can be accessed exactly how it was in the previous example // you can parse it and... // global variable assignment: results = JSON.parse(data); // or just return the json // results = data; }, error: function(response){ // always handle the error.. // how you deal with this is based on server side code alert("this is just an example, so it will always throw this error!!! ID: " + id + " || reqData: " + JSON.stringify(reqData)); } }); } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="form-group" id="radiobuttongroup"> <label for="inputservice" class="col-sm-2 control-label">Service</label> <div class="radio"> <input type="radio" name="optionsRadios" id="optionsRadios1" value="Dog"> <label>Dog</label> </div> <label for="inputservice" class="col-sm-2 control-label">&nbsp</label> <div class="radio"> <input type="radio" name="optionsRadios" id="optionsRadios2" value="Fish"> <label>Fish</label> </div> <label for="inputservice" class="col-sm-2 control-label">&nbsp</label> <div class="radio"> <input type="radio" name="optionsRadios" id="optionsRadios3" value="Rabbit"> <label>Rabbit</label> </div> </div> <div id="displaydata"></div>