如何获取具有以下格式的json数据？

Question

I've a json file to get a list of test results. Below is the json file. And a short snippet of the jquery. I am trying to get the test id from the json and display them as a unordered list. How can I do that?

[
         {
               "Test":{
               "id":"2949",
               "bk_session_id":"qpmz3gd6xw",
               "series_type":"Cars Series",
               "book_type":"A",
               }
         },
         {
               "Test":{
               "id":"2950",
               "bk_session_id":"qpmz3gd6xw",
               "series_type":"Cars Series",
               "book_type":"A",
               }
         }
]


<script type="text/javascript">

     $.getJSON("http://localhost:8888/tests/students.json?id=qpmz3gd6xw", function(data) {
     for (var i in data) 
        {
            alert(data[i].[Test].id);
        }
     }); 

</script>

Answer 1

You're missing the quotes around Test , it should be a string and remove the dot before it.

alert(data[i]['Test'].id);

also your json is not valid, remove the trailing , after each book_type.

[
         {
               "Test":{
               "id":"2949",
               "bk_session_id":"qpmz3gd6xw",
               "series_type":"Cars Series",
               "book_type":"A"
               }
         },
         {
               "Test":{
               "id":"2950",
               "bk_session_id":"qpmz3gd6xw",
               "series_type":"Cars Series",
               "book_type":"A"
               }
         }
]

http://jsfiddle.net/ef7Nq/

Answer 2

Try

Fiddle Demo

var ul = '';
for (var i in data) 
{
    ul += '<li>'+data[i]['Test'].id+'</li>';
}
$('#el').append($('<ul/>').html(ul));

Answer 3

Loop through the items in the array and append nodes for each id.

$.each(obj, function (i, item) {
    ul.append($('<li>' + item.Test.id + '</li>'));
});

fiddle here

Answer 4

您可以执行data[i]['Test'].id或data[i].Test.id因为名称中没有空格。

Answer 5

You can try this:

alert( data[i].Test.id );

Full Code:

$.getJSON("http://localhost:8888/tests/students.json?id=qpmz3gd6xw", function(data) {
     for (var i in data) {
            alert( data[i].Test.id );
     }
});

Demo