我无法在AJAX上加载数据

Question

I have an old script which is loading IP from xml file. Everything was working fine half year ago on that script. Now i wanted to use that again and it is not working. I don't know what happened. Is there something changed on browser or... ? Here is the Javascript

                    $.ajax({
                        var host;
                        type: "GET",
                        url: "config/config3.xml",
                        async : false,
                        dataType: "xml",
                        success: function(xml) {

                            $(xml).find('config').each(function () {
                                host = $(this).find('ip').text();
                                alert(host);
                            });

                        },
                        error: function(xml) {
                            alert("No XML file");
                        }
                    });  

And XML called config3.xml

<config><ip>192.168.0.102</ip></config>

It is not working at all. Nothing happened. No errors. Just nothing. Please help

Answer 1

The problem might lie in the fact that you have an improperly formed object.

Remove var host;

HTML

<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script>
    $.ajax({
        type: "GET",
        url: "config/config3.xml",
        async : false,
        dataType: "xml",
        success: function(xml) {
            console.log('xml success', xml);
            var host;
            $(xml).find('config').each(function () {
                host = $(this).find('ip').text();
                alert(host);
            });

        },
        error: function(xml) {
            alert("No XML file");
        }
    });
</script>

Answer 2

try this:

  $.ajax({ type: "GET", url: "config/config3.xml", async : false, dataType: "xml", success: function(xml) { var xmlDoc = $.parseXML(xml) xmlDoc.find('config').each(function () { host = $(this).find('ip').text(); alert(host); }); }, error: function(xml) { alert("No XML file"); } });