我正在尝试从此链接中读取数据https://www.freecodecamp.com/json/cats.json 但它没有显示任何数据。似乎是什么问题? 这是我的主页。页面放在wamp服务器的www文件夹中。
<!DOCTYPE html>
<html>
<head>
<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.0/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<style>
div.message {
background-color: black;
color: white;
margin: 20px 0 20px 0;
padding: 20px;
}
</style>
</head>
<body>
<script>
$(document).ready(function() {
$("#click").on("click", function() {
$.getJSON("https://www.freecodecamp.com/json/cats.json", function(json) {
var html = "";
// Only change code below this line.
json.forEach(function(val){
var keys=Object.keys(val);
html+="<div class='cat'>";
keys.forEach(function(key){
html += "<strong>"+key+"</strong>: " + val[key] + "<br>";
});
html += "</div><br>";
});
// Only change code above this line.
$(".message").html(html);
});
});
});
</script>
<div id="tops">
<div class="well">
<input type="text" id="user_id">
<button type="button" class="btn btn-default" id="click">See</button>
</div>
</div>
<div id="here" class="well message">
</div>
<!--<script type="text/javascript" src="cros_web.js"></script>-->
</body>
</html>