jquery ajax error {“readyState”:0,“responseText”:“”,“status”:0,“statusText”:“error”}

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我试图做一个ajax请求
$.ajax({
  type: "post",url: "download.PHP",error: function(data,status,err){
           alert(JSON.stringify(data));
         },data: "fileid="+fileid
});

此请求提醒“{”readyState“:0,”responseText“:”“,”status“:0,”statusText“:”error“}”

我在谷歌搜索我所有想到的是一个跨站点ajax调用(这显然不是)

我已经尝试把完整的网址,并做同样的事情.

我唯一可以想到的是标题,我不知道会是什么问题.这是从firebug的请求头

Host                www.mydomain.com
User-Agent          Mozilla/5.0 (Windows NT 6.1; rv:5.0) Gecko/20100101 Firefox/5.0
Accept              */*
Accept-Language     en-us,en;q=0.5
Accept-Encoding     gzip,deflate
Accept-Charset      ISO-8859-1,utf-8;q=0.7,*;q=0.7
Connection          keep-alive
Content-Type        application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With    XMLHttpRequest
Referer             http://www.mydomain.com/
Content-Length      8
Cookie              PHPSESSID=27b7d3890b82345a4fc9604808acd928

我已经在另一个页面添加了另一个请求,它的工作原理很好,但是这个请求的标题仍然是:

Host                www.mydomain.com
User-Agent          Mozilla/5.0 (Windows NT 6.1; rv:5.0) Gecko/20100101 Firefox/5.0
Accept              text/plain,*/*; q=0.01
Accept-Language     en-us,*;q=0.7
Connection          keep-alive
Content-Type        application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With    XMLHttpRequest
Referer             http://www.mydomain.com/differentpage.PHP
Content-Length      33
Cookie              PHPSESSID=27b7d3890b82345a4fc9604808acd928

解决方法

我遇到了同样的问题:每当用户点击链接时,如何注册.

问题在于,如果您不停止弹出窗口,则ajax请求不会完成,并且您已经准备好了状态:0!

我已经做了上述的另一个版本,也许是更可读(即使更详细)

/*  --------------------------------------------------------------------------
 *  Before that add 'downloads' class to every anchor tag (link) in your page
 *  This script does the rest
 *  
 *  remember to change 'your_PHP_file' with the one you use
 *  -------------------------------------------------------------------------- */

$(document).ready( function()
{

    // Check if there is any link with class 'downloads'
    if ( typeof $('.downloads') != 'undefined' )
    {
        var links = $('.downloads');

        // Run this for every download link
        for ( var i = 0; i < links.length; i++ )
        {   
            // Set click behavIoUr
            links[i].onclick = function(e)
            {
                // Get download name
                var attr = this.attributes,href = attr.href.textContent,elem = href.split('/'),elem = elem[elem.length - 1];

                // Send the download file name and only after completing the request let the user download the file
                $.ajax(
                {
                    type : "POST",dataType : "text",// 'your_PHP_file' must be an ABSOLUT or RELATIVE path!
                    url: your_PHP_file,// 'elem' is a variable containing the download name
                    // you can call it in your PHP file through $_POST['download_name']
                    data: { download_name: elem },// here we go magic:
                    // after the request is done run the popup for the download
                    complete: function()
                    {
                        window.location.href = href;
                    }
                });

                // Stop default behavIoUr until ajax request has been done
                e.preventDefault();
            };
        }
    }
});

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