问题读取HTTP状态/错误$ C $从jQuery的AJAXÇ [英] Problems Reading the HTTP Status/Error Code from jQuery AJAX
问题描述
我试图妥善处理一个HTTP状态错误（404，501等）可能在任何jQuery的AJAX调用（我使用的是1.6.4版本），但是，对于我的生活，我可以'被退回吨得到了相应的反应code（所有的值是'0'或'错误'，没有什么更具体的）。
I'm trying to appropriately handle a HTTP status error (404, 501, etc) that might be returned by any AJAX call in jQuery (I'm using version 1.6.4) however for the life of me I can't get out the appropriate response code (all values are '0' or 'error' and nothing more specific).
更新：创建的jsfiddle 这里
UPDATE: created a JSFIDDLE here
更新：加入状态code：{***} 按3nigma的建议，但它不火
UPDATE: added statusCode: { *** } as per 3nigma's suggestion BUT which does not fire
<!DOCTYPE html><html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.min.js"></script>
<script type="text/javascript">
function doAjax()
{
$.ajax({
type: "GET",
url: "http://www.non-existant-url.com/",
success: function(data, textStatus, jqXHR){
alert("Success");
},
error: function (xhr, textStatus, errorThrown) {
console.log("xhr.status: " + xhr.status);
console.log("xhr.statusText: " + xhr.statusText);
console.log("xhr.readyState: " + xhr.readyState);
console.log("xhr.responseText: " + xhr.responseText);
console.log("xhr.responseXML: " + xhr.responseXML);
console.log("textStatus: " + textStatus);
console.log("errorThrown: " + errorThrown);
console.log("xhr.redirect: " + xhr.redirect);
},
statusCode: {
404: function () { console.log("404"); },
501: function () { console.log("501"); },
502: function () { console.log("502"); }
}
});
}
</script>
</head>
<body><button onclick="doAjax();">Do AJAX</button></body>
</html>
我得到的输出如下：
The output I get is as follows:
仅供参考，我在......学习文档
FYI I've studied the documentation at...
http://api.jquery.com/jQuery.ajax/ （以下简称错误（jqXHR，textStatus，errorThrown）一节） http://api.jquery.com/jQuery.ajax/#jqXHR
http://api.jquery.com/jQuery.ajax/ (the "error(jqXHR, textStatus, errorThrown)" section) http://api.jquery.com/jQuery.ajax/#jqXHR
但jqXHR似乎并没有被填充正确。我必须做一些错误的，现在我已经江郎才尽了，所以我真的很AP preciate一些帮助。谢谢！
but the jqXHR doesn't seem to be populating properly. I must be doing something wrong and I've run out of ideas now so I would really appreciate some help. Thanks!
推荐答案
我是numpty，阿贾克斯并不出于安全考虑，工作跨域。如果我更改URL，以便其目标定位在同一个域中的主机的话，状态codeS和文字等被奇迹般地填充。
I'm a numpty, ajax doesn't work cross-domain for security reasons. If I change the url so that its targetting the same domain as the host then the status codes and text etc is miraculously populated.
我添加了另一个的jsfiddle的例子来证明这一点 rel="nofollow">。
I've added another JSFIDDLE example to demonstrate this here.
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