这很疯狂,但我不知道怎么做,因为这些词太常见了,在搜索引擎上很难找到我需要的东西。我想这个问题应该很容易回答。

我想要一个简单的文件下载,这将与此相同:

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

但是我想使用一个HTML按钮,例如:

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

同样,是否有可能通过JavaScript触发一个简单的下载?

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

我绝对不会寻找一种方法来创建一个看起来像按钮的锚,使用任何后端脚本,或混乱的服务器头或mime类型。


当前回答

如果你有一个复杂的URL,比如file。doc?Foo =bar&jon=doe是在表单中添加隐藏字段

<form method="get" action="file.doc">
  <input type="hidden" name="foo" value="bar" />
  <input type="hidden" name="john" value="doe" />
  <button type="submit">Download Now</button>
</form>

灵感来自@Cfreak的不完整的答案

其他回答

jQuery:

$("#fileRequest").click(function() {
    // hope the server sets Content-Disposition: attachment!
    window.location = 'file.doc';
});

在<body>和</body>标签之间的任何地方,使用下面的代码放入一个按钮:

<button>
    <a href="file.doc" download>Click to Download!</a>
</button>

这一定有用!

The solution I have come up with is that you can use download attribute in anchor tag but it will only work if your html file is on the server. but you may have a question like while designing a simple html page how can we check that for that you can use VS code live server or bracket live server and you will see your download attribute will work but if you will try to open it simply by just double clicking html page it open the file instead of downloading it. conclusion: attribute download in anchor tag only works if your html file is no server.

你好,我只是包括“下载”这个词,工作得很好。

<a href="file.pdf" download>Download</a>

所以在javascript中你可以使用以下代码:

function onStartedDownload(id) {
  console.log(`Started downloading: ${id}`);
}

function onFailed(error) {
  console.log(`Download failed: ${error}`);
}

var downloadUrl = "https://example.org/image.png";

var downloading = browser.downloads.download({
  url : downloadUrl,
  filename : 'my-image-again.png',
  conflictAction : 'uniquify'
});

downloading.then(onStartedDownload, onFailed);

我觉得这就是你想要的解决方案

<button type="submit" onclick="window.location.href='file.doc'">Download!</button>

我有一个案例,我的Javascript生成了一个CSV文件。由于没有远程URL来下载它,我使用以下实现。

downloadCSV: function(data){
    var MIME_TYPE = "text/csv";

    var blob = new Blob([data], {type: MIME_TYPE});
    window.location.href = window.URL.createObjectURL(blob);
}