Ajax请求返回200确定，但错误而不是成功

Question

有人能帮我吗..。

我让这个AJAX脚本调用一个XML页面。

 $.ajax({
    type: "GET",
    url: "game/",
    dataType: "xml",
    data : {
        g : 'new',
        uid : uid
    },

    error: function (xml) {
    console.log("ERROR");
    console.log(xml);

    alert(xml.status + ' ' + xml.statusText)
  },


    success: function(xml)
    {
    ...

    }

但是，在error对象中返回状态: 200 OK。为什么会发生这种事？

在这里，我的控制台日志：

ERROR speedywebs.js:678
Object {readyState: 4, getResponseHeader: function, getAllResponseHeaders: function, setRequestHeader: function, overrideMimeType: function…}abort: function (e){var t=e||S;return f&&f.abort(t),N(0,t),this}always: function (){return i.done(arguments).fail(arguments),this}complete: function (){if(a){var t=a.length;(function i(t){b.each(t,function(t,n){var r=b.type(n);r==="function"?(!e.unique||!c.has(n))&&a.push(n):n&&n.length&&r!=="string"&&i(n)})})(arguments),n?s=a.length:r&&(u=t,l(r))}return this}done: function (){if(a){var t=a.length;(function i(t){b.each(t,function(t,n){var r=b.type(n);r==="function"?(!e.unique||!c.has(n))&&a.push(n):n&&n.length&&r!=="string"&&i(n)})})(arguments),n?s=a.length:r&&(u=t,l(r))}return this}error: function (){if(a){var t=a.length;(function i(t){b.each(t,function(t,n){var r=b.type(n);r==="function"?(!e.unique||!c.has(n))&&a.push(n):n&&n.length&&r!=="string"&&i(n)})})(arguments),n?s=a.length:r&&(u=t,l(r))}return this}fail: function (){if(a){var t=a.length;(function i(t){b.each(t,function(t,n){var r=b.type(n);r==="function"?(!e.unique||!c.has(n))&&a.push(n):n&&n.length&&r!=="string"&&i(n)})})(arguments),n?s=a.length:r&&(u=t,l(r))}return this}getAllResponseHeaders: function (){return w===2?o:null}getResponseHeader: function (e){var t;if(w===2){if(!l){l={};while(t=Sn.exec(o))l[t[1].toLowerCase()]=t[2]}t=l[e.toLowerCase()]}return t==null?null:t}overrideMimeType: function (e){return w||(c.mimeType=e),this}pipe: function (){var e=arguments;return b.Deferred(function(n){b.each(t,function(t,s){var o=s[0],u=b.isFunction(e[t])&&e[t];i[s[1]](function(){var e=u&&u.apply(this,arguments);e&&b.isFunction(e.promise)?e.promise().done(n.resolve).fail(n.reject).progress(n.notify):n[o+"With"](this===r?n.promise():this,u?[e]:arguments)})}),e=null}).promise()}progress: function (){if(a){var t=a.length;(function i(t){b.each(t,function(t,n){var r=b.type(n);r==="function"?(!e.unique||!c.has(n))&&a.push(n):n&&n.length&&r!=="string"&&i(n)})})(arguments),n?s=a.length:r&&(u=t,l(r))}return this}promise: function (e){return e!=null?b.extend(e,r):r}readyState: 4responseText: "<?xml version="1.0" encoding="UTF-8"?><cards><card1><id>119</id><download>19.99</download><upload>12.48</upload><ping>24</ping><testserver>Stockholm 2</testserver><hostname>x1-6-28-c6-8e-96-b1-da.cpe.webspeed.dk</hostname><name>@risager</name><location>Vangede</location><connection>Kabel / Fiber</connection><comment></comment></card1><card2><id>171</id><download>-</download><upload>-</upload><ping>-</ping><testserver>Stockholm 2</testserver><hostname>94.191.184.222.mobile.3.dk</hostname><name>@camillaBandit</name><location>København K</location><connection>4G/LTE</connection><comment>Inde hos Joe & The Juice</comment></card2></cards>"setRequestHeader: function (e,t){var n=e.toLowerCase();return w||(e=y[n]=y[n]||e,g[e]=t),this}state: function (){return n}status: 200statusCode: function (e){var t;if(e)if(w<2)for(t in e)m[t]=[m[t],e[t]];else x.always(e[x.status]);return this}statusText: "OK"success: function (){if(a){var t=a.length;(function i(t){b.each(t,function(t,n){var r=b.type(n);r==="function"?(!e.unique||!c.has(n))&&a.push(n):n&&n.length&&r!=="string"&&i(n)})})(arguments),n?s=a.length:r&&(u=t,l(r))}return this}then: function (){var e=arguments;return b.Deferred(function(n){b.each(t,function(t,s){var o=s[0],u=b.isFunction(e[t])&&e[t];i[s[1]](function(){var e=u&&u.apply(this,arguments);e&&b.isFunction(e.promise)?e.promise().done(n.resolve).fail(n.reject).progress(n.notify):n[o+"With"](this===r?n.promise():this,u?[e]:arguments)})}),e=null}).promise()}__proto__: Object

XML响应是：

<?xml version="1.0" encoding="UTF-8"?><cards><card1><id>119</id><download>19.99</download><upload>12.48</upload><ping>24</ping><testserver>Stockholm 2</testserver><hostname>x1-6-28-c6-8e-96-b1-da.cpe.webspeed.dk</hostname><name>@risager</name><location>Vangede</location><connection>Kabel / Fiber</connection><comment></comment></card1><card2><id>171</id><download>-</download><upload>-</upload><ping>-</ping><testserver>Stockholm 2</testserver><hostname>94.191.184.222.mobile.3.dk</hostname><name>@camillaBandit</name><location>København K</location><connection>4G/LTE</connection><comment>Inde hos Joe & The Juice</comment></card2></cards>

Answer 1

好吧，这是XML解析问题。您收到的XML在第25行：<comment>Inde hos Joe & The Juice</comment>中有未转义的符号和字符。

请客户端进行escape it或将其更改为文本。其余的XML正确地解析。

请查看类似的问题here

另外，请记住下次在你的问题中添加这样的信息，它会有很大的帮助。;)

Answer 2

使用这种类型的回调来查看正确的错误。

  error: function (xhr, ajaxOptions, thrownError) {
        console.log(xhr.status);
        console.log(thrownError);
      }

然后通过设置正确的返回数据类型来修复。

这个链接可能会有帮助- jQuery AJAX 200 status, yet mysterious syntax error