jQuery.post()如何处理Content-Disposition:附件? [英] How does jQuery.post() deal with Content-Disposition: attachment?
问题描述
这里有点疯狂.我正在使用jQuery.post进行Ajax调用，如下所示:
Going slightly crazy here. I'm making an Ajax call using jQuery.post as follows:
$.post('php/print.php',{data:dS},function(res){... },"text");
我从print.php返回(作为测试):
I'm returning from print.php (as a test):
header("Content-type: application/vnd.ms-word");
header("Content-Disposition: attachment;Filename=test.doc");
echo "<html>";
echo "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=Windows-1252\">";
echo "<body>";
echo "Testing-2-3!";
echo "</body>";
echo "</html>";
根据Firebug，包括标头在内的数据进行正常处理.但是，如何使浏览器(在这种情况下为Firefox)提示用户保存附件?
The data is coming through fine according to Firebug, including the headers. But how do I get the browser (Firefox, in this instance) to prompt the user to save an attachment?
谢谢.
推荐答案
这根本不可能. AJAX请求永远不会引起用户提示.
It's simply not possible. AJAX requests never cause user prompts.
不过，您可以简单地使请求返回，例如包含URL的JSON或纯文本，然后使用location.href = ...;重定向到它；这将导致您正在寻找提示.
However, you can simply make the request return e.g. JSON or plaintext containing the URL and then use location.href = ...; to redirect to it; this will result in the prompt you are looking for.
如果请求总是导致文件下载，您也可以考虑使用常规格式而不使用AJAX；如果响应触发下载对话框，则上一页仍将保留在浏览器窗口中.
If the request always results in a file download, you could also consider using a regular form and not using AJAX at all; if the response triggers a download dialog the previous page will remain in the browser window anyway.
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