官方网站：http://danml.com/download.html
下载地址：http://danml.com/js/download2.js
环境测试
手机QQ： 通过
华为手机浏览器：通过
小米手机浏览器：通过
Chrome(含移动端)：通过
Firefox(含移动端)：通过
Edge：通过
微信：未通过，待确认
简单使用
download(data, strFileName, strMimeType);- data: 要下载的数据，可以是 Blob、文件、字符串、URL
- strFileName: 下载时指定文件名称
- strMimeType：文件的MIME类型，可选。有利于向用户提供友好的信息
下载文字
download("我是文字", "text.txt", "text/plain");下载html
download("data:text/plain,hello%20world", "dlDataUrlText.txt", "text/plain");下载data:二进制数据
download("data:image/gif;base64,R0lGODlhRgAVAIcAAOfn5+/v7/f39yH5BAAAAP8ALAAAAABGABUAAAj/AAEIHAgggMGDCAkSRMgwgEKBDRM+LBjRoEKDAjJq1GhxIMaNGzt6DAAypMORJTmeLKhxgMuXKiGSzPgSZsaVMwXUdBmTYsudKjHuBCoAIc2hMBnqRMqz6MGjTJ0KZcrz5EyqA276xJrVKlSkWqdGLQpxKVWyW8+iJcl1LVu1XttafTs2Lla3ZqNavAo37dm9X4eGFQtWKt+6T+8aDkxUqWKjeQUvfvw0MtHJcCtTJiwZsmLMiD9uplvY82jLNW9qzsy58WrWpDu/Lp0YNmPXrVMvRm3T6GneSX3bBt5VeOjDemfLFv1XOW7kncvKdZi7t/S7e2M3LkscLcvH3LF7HwSuVeZtjuPPe2d+GefPrD1RpnS6MGdJkebn4/+oMSAAOw==", "dlDataUrlBin.gif", "image/gif");下载ajax接口返回的数据
var x=new XMLHttpRequest();
x.open("GET", "http://danml.com/wave2.gif", true);
x.responseType = 'blob';
x.onload=function(e){download(x.response, "dlBinAjax.gif", "image/gif" ); }
x.send();完整测试代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="http://danml.com/js/download2.js"></script>
</head>
<body>
<button onclick="downloadText()">下载文字</button><br>
<button onclick="downloadHtml()">下载HTML</button><br>
<button onclick="downloadBinary()">下载data:二进制数据</button><br>
<button onclick="downloadFromAjax()">从ajax接口下载</button><br>
</body>
<script>
function downloadText() {
download("data:text/plain,hello%20world", "dlDataUrlText.txt", "text/plain");
}
function downloadHtml() {
download(document.body.outerHTML, "dlHTML.html", "text/html");
}
function downloadBinary() {
download("data:image/gif;base64,R0lGODlhRgAVAIcAAOfn5+/v7/f39yH5BAAAAP8ALAAAAABGABUAAAj/AAEIHAgggMGDCAkSRMgwgEKBDRM+LBjRoEKDAjJq1GhxIMaNGzt6DAAypMORJTmeLKhxgMuXKiGSzPgSZsaVMwXUdBmTYsudKjHuBCoAIc2hMBnqRMqz6MGjTJ0KZcrz5EyqA276xJrVKlSkWqdGLQpxKVWyW8+iJcl1LVu1XttafTs2Lla3ZqNavAo37dm9X4eGFQtWKt+6T+8aDkxUqWKjeQUvfvw0MtHJcCtTJiwZsmLMiD9uplvY82jLNW9qzsy58WrWpDu/Lp0YNmPXrVMvRm3T6GneSX3bBt5VeOjDemfLFv1XOW7kncvKdZi7t/S7e2M3LkscLcvH3LF7HwSuVeZtjuPPe2d+GefPrD1RpnS6MGdJkebn4/+oMSAAOw==", "dlDataUrlBin.gif", "image/gif");
}
function downloadFromAjax() {
var x=new XMLHttpRequest();
x.open("GET", "http://39.107.120.250/tt.jpg", true); // 注意跨域问题d
x.responseType = 'blob';
x.onload=function(e){
download(x.response, "dlBinAjax.gif", "image/jpg" );
}
x.send();
}
</script>
</html>