jquery - 无法向 jquery getJSON 添加回调函数

Question

我正在尝试在 jquery 中执行跨域请求，使用类似于 this gist 中找到的函数。

我以为我的 JSON 不正确，但这是我从响应中得到的:

{"status":"OK","errorMessage":"","numberOfResults":10,"suggestions":[{"url":"http://dbpedia.org/resource/Bassiana","label":"Bassiana","owner":0},{"url":"http://dbpedia.org/resource/Julia_Soaemias_Bassiana","label":"Julia Soaemias Bassiana","owner":0},{"url":"http://dbpedia.org/resource/Julia_Bassiana","label":"Julia Bassiana","owner":0},{"url":"http://dbpedia.org/resource/Varius_Avitus_Bassianus_Marcus_Aurelius_Antoninus","label":"Varius Avitus Bassianus Marcus Aurelius Antoninus","owner":0},{"url":"http://dbpedia.org/resource/Bassianus_%28senator%29","label":"Bassianus (senator)","owner":0},{"url":"http://dbpedia.org/resource/Johannes_Bassianus","label":"Johannes Bassianus","owner":0},{"url":"http://dbpedia.org/resource/Julius_Bassianus","label":"Julius Bassianus","owner":0},{"url":"http://dbpedia.org/resource/Bassian_thrush","label":"Bassian thrush","owner":0},{"url":"http://dbpedia.org/resource/Bassianae","label":"Bassianae","owner":0},{"url":"http://dbpedia.org/resource/Bassian","label":"Bassian","owner":0}]}

我该如何让它发挥作用？由于 JSON 无效，回调似乎从未被触发。

Answer 1

问题不在于它无效(通过this site传递它会确认)，而是它永远不会“包装”在回调方法中。

查找JSONp .

如果您要调用 /getMyJSON?callback=myCallback，您的 JSONP 响应应该返回如下:

myCallback({"status":"OK","errorMessage":"","numberOfResults" ...);

(请注意，它现在包装在您应该在页面上定义的函数调用中，并准备好处理返回的结果)。