七度&光 2017-01-20 14:29 采纳率: 22.2%
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从API调用JSON数据

I am trying to retrieve data from an api and use it to populate the div with the ID "output". I get an error that the $ is undefined. Can anyone help determine what I am missing?

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Content-Script-Type" content="text/javascript">
<meta name="Content-Style-Type" content="text/css">
</head>

<body style="margin: 0px; padding: 0px;">

<div id="fullscreen">
<div id="output">

</div>

</div>

</body>
<script>
$.ajax({
type: 'GET',
url: "https://apiurl.com",
dataType: "json",
crossDomain: true,
success: function( response ) {
        console.log( response ); // server response
        var id = response[0];       
        var vname = response[1];
        $('#output').html("<b>id: </b>"+id+"<b> name: </b>"+vname);
}
});
</script>
</html>
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3条回答 默认 最新

  • 七度&光 2017-01-20 14:39
    关注

    As Sirko already explained in the comments, you are trying to use the javascript library JQuery, but the library is not available because you didn't include it.

    You can include it by either downloading JQuery here and including it via

    <script src="src_to_local_jquery.js"/>
    

    or by including it externally (described in CDN section of above link)

    Also note, that script tags should be put either in the head or the body section. To make sure your custom script is executed after the page is ready, you can use JQuery's document ready method.

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