jsonp with jquery [closed]

2018-12-31 08:50发布

站内问答 / jQuery
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Can you give a very simple example of reading a jsonp request with jquery? I just can't get it to work.

1条回答
荒废的爱情
2楼-- · 2018-12-31 08:55

Here is working example:

<html><head><title>Twitter 2.0</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
</head><body>
<div id='tweet-list'></div>
<script type="text/javascript">
$(document).ready(function() {
    var url =  "http://api.twitter.com/1/statuses/user_timeline/codinghorror.json";
    $.getJSON(url + "?callback=?", null, function(tweets) {
        for(i in tweets) {
            tweet = tweets[i];
            $("#tweet-list").append(tweet.text + "<hr />");
        }
    });
});
</script>
</body></html>

Notice the ?callback=? at the end of the requested URL. That indicates to the getJSON function that we want to use JSONP. Remove it and a vanilla JSON request will be used. Which will fail due to the same origin policy.

You can find more information and examples on the JQuery site: http://api.jquery.com/jQuery.getJSON/

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