实际上，问题在于，如果不停止弹出窗口，则ajax请求不会完成，并且您会得到readyState：0！
我已经完成了上述操作的另一个版本，该版本可能更易读（即使更冗长）
/* -------------------------------------------------------------------------- * 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(); }; } } });@H_502_9@解决方法
我正在尝试提出ajax请求
$.ajax({ type: "post",url: "download.php",error: function(data,status,err){ alert(JSON.stringify(data)); },data: "fileid="+fileid });该请求将警报“ {“ readyState”：0，“ responseText”：“”，“状态”：0，“ statusText”：“错误”}“
我在Google上搜索了所有我想出的是跨站点Ajax调用（这显然不是）
我已经尝试将完整的url放进去，并且做同样的事情。
我唯一能想到的就是标题，我不知道它到底有什么问题。这是firebug的请求标头
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我在另一个页面上添加了另一个请求，它工作正常，但是这个请求不断失败，另一个请求的标头是：
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
$.ajax({
type: "post",url: "download.php",error: function(data,status,err){
alert(JSON.stringify(data));
},data: "fileid="+fileid
});
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
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
我正在尝试提出ajax请求
该请求将警报“ {“ readyState”：0，“ responseText”：“”，“状态”：0，“ statusText”：“错误”}“
我在Google上搜索了所有我想出的是跨站点Ajax调用（这显然不是）
我已经尝试将完整的url放进去，并且做同样的事情。
我唯一能想到的就是标题，我不知道它到底有什么问题。这是firebug的请求标头
我在另一个页面上添加了另一个请求，它工作正常，但是这个请求不断失败，另一个请求的标头是：
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