阅读JSONP

我有以下脚本，可以访问jsonp提要并从中获取数据：

$(document).ready(function() {
    get_jsonp_feed();

    function get_jsonp_feed() {
        $.ajax({
            url: "http://query.yahooapis.com/v1/public/yql?q=%20SELECT%20*%20FROM%20html%20WHERE%20url%3D%22http%3A%2F%2Fnews.bbc.co.uk%2Fweather%2Fforecast%2F4276%3Fsearch%3Dgerrards%2520cross%26itemsPerPage%3D10%26region%3Dworld%26area%3DGerrards%2520Cross%22%20and%20xpath%20%3D%20'%2F%2Ftable%2Ftbody%2Ftr'&format=json&diagnostics=true&callback=cbfunc",
            type: 'GET',
            dataType: 'jsonp',
            jsonp: 'callback',
            jsonpCallback: 'cbfunc',
            error: function(xhr, status, error) {
                alert(xhr.responseText);
            },
            success: function(data) { 
                var itemList = data.query;

                alert(itemList.count);

                /*
                var buildHTML = [];

                for (var i = 0; i < 5; i++) {
                    buildHTML.push('<div class="container"><a href="' + itemList[i].link + '" class="title" target="_blank">' + itemList[i].title + '<br /><span class="dateandtime">' + itemList[i].pubDate + '</span></a></div>');
                }

                $('.portlet-content').empty().append(buildHTML.join('<hr />'))
                */
            }
        });
    }
});

我怎样才能得到它呢

下面是返回5的JSFIDEL：

---

以下是一些固定的代码，用于获取JSONP而不是XML：

$(document).ready(function() {
    get_jsonp_feed();

    function get_jsonp_feed() {
        $.ajax({
            url: "http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20html%20where%20url%20%3D%20'http%3A%2F%2Fnews.bbc.co.uk%2Fweather%2Fforecast%2F4276%3F%26search%3Dgerrards%2520cross%26itemsPerPage%3D10%26region%3Dworld%26area%3DGerrards%2520Cross'%20and%20xpath%20%3D%20'%2F%2Ftbody%2Ftr'&format=json&callback=?",
            type: 'GET',
            dataType: 'jsonp',
            error: function(xhr, status, error) {
                alert(xhr.responseText);
            },
            success: function(data) {
                var itemList = data.query;

                alert(itemList.count);

                /*
                var buildHTML = [];

                for (var i = 0; i < 5; i++) {
                    buildHTML.push('<div class="container"><a href="' + itemList[i].link + '" class="title" target="_blank">' + itemList[i].title + '<br /><span class="dateandtime">' + itemList[i].pubDate + '</span></a></div>');
                }

                $('.portlet-content').empty().append(buildHTML.join('<hr />'))
                */
            }
        });
    }
});

---

要获取data.query.results.tr.td.div.abbr.title之类的数据，您必须在data.query.results.tr.td对象上使用for循环，以及任何其他具有同级的对象，或者使用XML获取原始html，将其放入文档片段并使用jQuery。

我已经更新了原始问题，以获取jsonp而不是XML。

$(document).ready(function() {
    get_jsonp_feed();

    function get_jsonp_feed() {
        $.ajax({
            url: "http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20html%20where%20url%20%3D%20'http%3A%2F%2Fnews.bbc.co.uk%2Fweather%2Fforecast%2F4276%3F%26search%3Dgerrards%2520cross%26itemsPerPage%3D10%26region%3Dworld%26area%3DGerrards%2520Cross'%20and%20xpath%20%3D%20'%2F%2Ftbody%2Ftr'&format=json&callback=?",
            type: 'GET',
            dataType: 'jsonp',
            error: function(xhr, status, error) {
                alert(xhr.responseText);
            },
            success: function(data) {
                var itemList = data.query;

                alert(itemList.count);

                /*
                var buildHTML = [];

                for (var i = 0; i < 5; i++) {
                    buildHTML.push('<div class="container"><a href="' + itemList[i].link + '" class="title" target="_blank">' + itemList[i].title + '<br /><span class="dateandtime">' + itemList[i].pubDate + '</span></a></div>');
                }

                $('.portlet-content').empty().append(buildHTML.join('<hr />'))
                */
            }
        });
    }
});