由网友(纯真的眼眸)分享简介：JS code：$.ajax({type: 'POST',url: 'http://localhost/MyServiceDir/Service.asmx/Foo',contentType: 'application/json; charset=utf-8',data: jsonData,success: func...

JS code：

$.ajax({


        type: 'POST',
         url: 'http://localhost/MyServiceDir/Service.asmx/Foo',
         contentType: 'application/json; charset=utf-8',
         data: jsonData,
         success: function (msg) {
             alert("good");
         },
         error: function (xhr, status) {
              switch (status) {
                 case 404:
                     alert('File not found');
                     break;
                 case 500:
                     alert('Server error');
                     break;
                 case 0:
                     alert('Request aborted');
                     break;
                 default:
                     alert('Unknown error ' + status);
             } 
         }
     });

我得到未知错误错误。我如何到达这条底线？我想知道是什么错误实际上是。谢谢！

I get "unknown error error". How do I get to the bottom of this? I would like to know what the error actually is. Thanks!

推荐答案

状态参数只包括为什么会失败 - 超时，错误，等等......为了获得状态code，你需要检查响应对象： xhr.status

The "status" parameter only includes why it failed -- timeout, error, etc... To get the status code you need to check the response object: xhr.status

请参阅 http://www.w3.org/TR/XMLHttprequest /＃响应了解详细信息。

如果您收到500内部服务器错误的是的所有，你会从阿贾克斯得到。你必须检查你的应用程序或服务器日志。这可能是一个语法错误或或库错误或别的东西沿着这些线路。

If you are getting "500 Internal Server Error" that is all you are going to get from ajax. You will have to check your application or server logs. This could be a syntax error or or library error or something else along those lines.