javascript 下载文件并重定向...或替代方法
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Download a file and redirect...or alternative
提问by Kyle
Users fill out a form. With a valid form, they click to download a file. I would like to be able to redirect them to another page (e.g., page2.html) AND initiate a download.
用户填写表格。使用有效的表单，他们单击以下载文件。我希望能够将它们重定向到另一个页面（例如，page2.html）并启动下载。
I can't initiate download on page2.htmlbecause most browsers will flag security warnings if a download link isn't directly clicked on.
我无法启动下载，page2.html因为如果未直接单击下载链接，大多数浏览器都会标记安全警告。
How is something like this accomplished using javascript or jquery? Obviously the following doesn't work but it's meant for illustrative purposes:
如何使用 javascript 或 jquery 完成这样的事情？显然，以下内容不起作用，但仅用于说明目的：
document.getElementById("foo").onclick = function(){
window.location = "/download.exe";
window.location = "/page2.html";
}
回答by Chris Morgan
You could use a link to the file and onclickto trigger "go to the next page shortly".
您可以使用指向该文件的链接并onclick触发“立即转到下一页”。
<script>
function thanks() {
setTimeout(function () {
document.location.pathname = "page2.html";
}, 1000);
}
</script>
<a href="file.exe" onclick="thanks()">Download now!</a>
回答by Matt Ball
You can initiate the download on page 2 by having page2.html"change" its location (to your download URL) once the page is loaded:
您可以通过page2.html在页面加载后“更改”其位置（到您的下载 URL）来启动第 2 页的下载：
$(function ()
{
setTimeout(function ()
{
window.location.pathname = '/download.exe';
}, 5000); // download the file in 5 seconds
});
I'm pretty sure (though not 100%) that won't trigger a security warning.
我很确定（虽然不是 100%）这不会触发安全警告。
