javascript 如何使用javascript下载文件？
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How to download file with javascript?
提问by Bercovici Adrian
I want to be able to download a given file when pressing a button.The file will be provided via an APIcall.For now, I will have it in my local storage.
So my folder is something like :
我希望能够在按下按钮时下载给定的文件。该文件将通过API调用提供。现在，我会将其保存在本地存储中。所以我的文件夹是这样的：
rootFolder
-JS file
-HTML file
-download file (`sample.csv`)
How can I create a download link?
I have tried so far with :
<a download="sample.csv"></a>I have also tried using an onclickevent:
如何创建下载link？到目前为止我已经尝试过：
<a download="sample.csv"></a>我也尝试过使用一个onclick事件：
<a download="sample.csv" onclick="download()"></a>
function download|(){
.....code that calls the `api`
}
I do not know how these 2 fit: the downloadAPI if there is one and the clickevent handler if you plan to do additional logic when downloading.
我不知道这两个如何适合：the downloadAPI（如果有）和click事件处理程序（如果您计划在下载时执行其他逻辑）。
回答by saibbyweb
You can provide the link to this function to download the file :
您可以提供此功能的链接以下载文件：
function downloadURI(uri, name)
{
var link = document.createElement("a");
link.download = name;
link.href = uri;
link.click();
}
回答by Airat Zhanshuakov
You can do it via HTML <a href="/path/to/sample.csv"></a>, but if you have to do it in JS there is https://github.com/eligrey/FileSaver.js/library.
您可以通过 HTML 完成<a href="/path/to/sample.csv"></a>，但如果您必须在 JS 中完成，则可以使用https://github.com/eligrey/FileSaver.js/库。
