最简单的方法来获取JSON并使用JQuery和Javascript对其进行解析? [英] Easiest way to get json and parse it using JQuery and Javascript?
问题描述
我正在尝试使这段代码被删除，但我似乎无法弄清楚.目标是以最简单，最简单的方式返回并解析json对象.这是代码段.
I am trying to get this code snipped to work but I can't seem to figure this out. The goal is to return and parse a json object in the most simple, easiest way possible. Here is the code snippet.
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js">
</script>
</head>
<body>
<h2>Create Object from JSON String</h2>
<p id="demo"></p>
<script>
$.getJSON('http://finance.google.com/finance/info?client=ig&q=NASDAQ:TSLA', function(data) {
var obj = JSON.parse(data);
document.getElementById("demo").innerHTML = obj.id;
});
</script>
</body>
</html>
更新:
在下面提供的所有帮助下，我已经弄清楚了，谢谢！我将在以后的案例中发布解决方案.问题是因为我没有遵循同一个起源策略"，所以我忘记了回调.
I was able to figure it out with all of the assistance down below, Thank you! I will post the solution for future cases. The problem was that I had forgotten about the callback since I wasn't following Same Origin Policy.
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js">
</script>
<script>
$(document).ready(function () {
$.getJSON('https://www.google.com/finance/info?q=NASDAQ:TSLA&callback=?', function(data) {
$('#demo').text(data[0].id);
});
});
</script>
</head>
<body>
<p id="demo"></p>
</body>
</html>
推荐答案
obj对象是array，因此您必须使用indexes访问元素.
obj object is an array so you have to access an element using indexes.
document.getElementById("demo").innerHTML = obj[0].id;
此外，您不需要JSON.parse方法，因为返回回调的data已经是json对象.
Also, you do not need JSON.parse method because data returned to callback is already a json object.
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