如何从javascript下载文件 [英] How to download file from javascript
本文介绍了如何从javascript下载文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
< html>
< head>
< script>
函数下载（plan_name）
{
if（window.XMLHttpRequest）
{
xmlhttp = new XMLHttpRequest（）;
}
else
{
xmlhttp = new ActiveXObject（Microsoft.XMLHTTP）;
}
xmlhttp.onreadystatechange = function（）
{
if（xmlhttp.readyState == 4&& xmlhttp.status == 200）
{
var resp = xmlhttp.responseText;
document.getElementById（txtHint）。innerHTML = resp;
//如何在save-as对话框中显示test.zip？
}
}
xmlhttp.open（GET，fetcher.php？file = / raid0 / data / naswebsite / Projects / Projects / 07-003_Dawson_Mine / \\ Plans / Dawson_Sth_1211_AMG_700.zip）;
xmlhttp.send（）;
}
< / script>
< / head>
< body>
< a href =＃onClick =Download（）;>测试下载< / a>
< div id =txtHint>< / div>
< / body>
< / html>
解决方案
无法从AJAX下载文件请求。
相反，您可以将隐藏的< iframe> 中的URL加载。
I'm trying to make my Download function popup with the file to download, it is outputting the binary of the file to the div when i click the link, how can i make it so that when i click the link, it will instead ask me to download it? I know i can do it with querystring and using headers in php, but can i do it with ajax/javascript in a similar way? thanks, here's what i tried:
<html>
<head>
<script>
function Download(plan_name)
{
if (window.XMLHttpRequest)
{
xmlhttp=new XMLHttpRequest();
}
else
{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
var resp = xmlhttp.responseText;
document.getElementById("txtHint").innerHTML=resp;
//HOW TO SHOW test.zip in a save-as dialog?
}
}
xmlhttp.open("GET","fetcher.php?file=/raid0/data/naswebsite/Projects/Projects/07-003_Dawson_Mine/Flight\ Plans/Dawson_Sth_1211_AMG_700.zip");
xmlhttp.send();
}
</script>
</head>
<body>
<a href="#" onClick="Download();">Test Download</a>
<div id="txtHint"></div>
</body>
</html>
解决方案
It is not possible to download a file from an AJAX request.
Instead, you can load the URL in a hidden <iframe>.
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