如何从MooTools中的XHR对象获取HTTP返回代码

只是console.info this 在回调中 onFailure - this.status 包含HTTP错误响应。 this.xhr 包含有关请求和扩展响应的更多信息。

http://www.jsfiddle.net/dimitar/NF2jz/365/

new Request({
    url: '/secho/html/',
    data: {
        html: "<p>Text echoed back to request</p>" + "<script type='text/javascript'>$('target').highlight();<\/script>",
        delay: 3
    },
    method: 'post',
    onFailure: function() {
        var error = "Error " + this.status;
        switch (this.status) {
            case 404:
                error = "Document not found (404)";
            break;
            case 301:
                error = "Object moved permanently (301 redirect)";
            break;
            case 302:
                error = "Object moved temporarliy (302 redirect)";
            break;
        }
        alert(error);
    }
}).send();