如何使用promise获取失败的ajax请求的URI？

Question

I have this simple code:

var jqXHR = $.getJSON(uri);
jqXHR.done(function (ajax_data) { /* put here your code */ });
jqXHR.fail(function (jqXHR, lvl, msg) {
    console.error(lvl + " with AJAX call: " + msg);
});

Is there a way to get uri from the jqXHR object in the fail() handler? There's no jqXHR.url attribute, in opposition of the jqXHR parameter of the error() handler of $.ajax() .

I could use jqXHR.responseText , but it's the whole response from the server and it's a bit too much for me.

PS: I'm using jQuery promises for ease of use. If I've time I'll use the Q library .

Answer 1

There's no jqXHR.url

Try this.url

 var jqXHR = $.getJSON("../"); // `uri` : `"../"` jqXHR.done(function (ajax_data) { /* put here your code */ }); jqXHR.fail(function (jqXHR, lvl, msg) { console.error(lvl + " with AJAX call: " + msg, this.url); // `error with AJAX call: ../` }); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"> </script>