如何在单击html按钮或javascript时触发文件下载 [英] How to trigger a file download when clicking an html button or javascript

问题描述

这是疯狂的，但我不知道该怎么做，而且由于这些词的常用性，很难找到我在搜索引擎上需要的东西。我想这应该是一个简单的答案。

This is crazy but I don't know how to do this, and because of how common the words are, it's hard to find what I need on search engines. I'm thinking this should be an easy one to answer.

我想要一个简单的文件下载，这样做可以一样：

I want a simple file download, that would do the same as this:

<a href="file.doc">Download!</a>

但是我想使用HTML按钮，例如以下任一项：

But I want to use an HTML button, e.g. either of these:

<input type="button" value="Download!">
<button>Download!</button>

同样，是否可以通过Javascript触发简单的下载？

Likewise, is it possible to trigger a simple download via Javascript?

$("#fileRequest").click(function(){ /* code to download? */ });

我绝对不会寻找一种创建锚点的方法看起来像一个按钮，使用任何后端脚本，或混乱服务器头或MIME类型。

I'm definitely not looking for a way to create an anchor that looks like a button, use any back-end scripts, or mess with server headers or mime types.

推荐答案

可以做

<form method="get" action="file.doc">
   <button type="submit">Download!</button>
</form>

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