一、此方法火狐有些版本是不支持的
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window.location.href = 'https://*****.oss-cn-**.aliyuncs.com/*********';
二、为了解决火狐有些版本不支持,可以改成这种方式
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window.location='https://*****.oss-cn-**.aliyuncs.com/*********';
三、该方法IE和火狐都可以,url表示要下载的文件路径:
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function(url){
????try {
??????????var elemIF = document.createElement("iframe");
??????????elemIF.src = url;
??????????elemIF.style.display = "none";
??????????document.body.appendChild(elemIF);
????????} catch (e) {
??????????alert("下载异常！");
????????}
}
四、form表单的形式
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downloadFile(url){
??????var form=$("<form>");
??????form.attr("style","display:none");
??????form.attr("target","");
??????form.attr("method","get");
?????form.attr("action",url);
??????$("body").append(form);
??????form.submit();//表单提交}
}
五、a标签的方式
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function(url,name){
????var a = document.createElement("a");
?????a.download = name + ".xls";
?????a.href = url;
?????$("body").append(a); //?修复firefox中无法触发click
?????a.click();
?????$(a).remove();
}
六、假如后台给的文件流
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function (formData, url, name) {
??return new Promise((resolve, reject) => {
????var xhr = new XMLHttpRequest();
????xhr.open("POST", url, true); //?也可以使用POST方式，根据接口
????xhr.responseType = "blob"; //?返回类型blob
????//?定义请求完成的处理函数，请求前也可以增加加载框/禁用下载按钮逻辑
????xhr.onload = function () {
??????//?请求完成
??????if (this.status === 200) {
????????//?返回200
????????var blob = this.response;
????????var reader = new FileReader();
????????reader.readAsDataURL(blob); //?转换为base64，可以直接放入a表情href
????????reader.onload = function (e) {
??????????//?转换完成，创建一个a标签用于下载
??????????var a = document.createElement("a");
??????????a.download = name + ".xls";
??????????a.href = e.target.result;
??????????$("body").append(a); //?修复firefox中无法触发click
??????????a.click();
??????????resolve(200)
??????????$(a).remove();
????????};
??????}
????};
????//?发送ajax请求
????xhr.send(formData);
??})
};
七、download.js
我粘贴一下download的源码
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//download.js v4.2, by dandavis; 2008-2016. [CCBY2] see http://danml.com/download.html for tests/usage
// v1 landed a FF+Chrome compat way of downloading strings to local un-named files, upgraded to use a hidden frame and optional mime
// v2 added named files via a[download], msSaveBlob, IE (10+) support, and window.URL support for larger+faster saves than dataURLs
// v3 added dataURL and Blob Input, bind-toggle arity, and legacy dataURL fallback was improved with force-download mime and base64 support. 3.1 improved safari handling.
// v4 adds AMD/UMD, commonJS, and plain browser support
// v4.1 adds url download capability via solo URL argument (same domain/CORS only)
// v4.2 adds semantic variable names, long (over 2MB) dataURL support, and hidden by default temp anchors
// https://github.com/rndme/download
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(function (root, factory) {
????if (typeof define === 'function' && define.amd) {
????????// AMD. Register as an anonymous module.
????????define([], factory);
????} else if (typeof exports === 'object') {
????????// Node. Does not work with strict CommonJS, but
????????// only CommonJS-like environments that support module.exports,
????????// like Node.
????????module.exports = factory();
????} else {
????????// Browser globals (root is window)
????????root.download = factory();
??}
}(this, function () {
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????return function download(data, strFileName, strMimeType) {
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????????var self = window, // this script is only for browsers anyway...
????????????defaultMime = "application/octet-stream", // this default mime also triggers iframe downloads
????????????mimeType = strMimeType || defaultMime,
????????????payload = data,
????????????url = !strFileName && !strMimeType && payload,
????????????anchor = document.createElement("a"),
????????????toString = function(a){return String(a);},
????????????myBlob = (self.Blob || self.MozBlob || self.WebKitBlob || toString),
????????????fileName = strFileName || "download",
????????????blob,
????????????reader;
????????????myBlob= myBlob.call ? myBlob.bind(self) : Blob ;
?????
????????if(String(this)==="true"){ //reverse arguments, allowing download.bind(true, "text/xml", "export.xml") to act as a callback
????????????payload=[payload, mimeType];
????????????mimeType=payload[0];
????????????payload=payload[1];
????????}
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????????if(url && url.length< 2048){ // if no filename and no mime, assume a url was passed as the only argument
????????????fileName = url.split("/").pop().split("?")[0];
????????????anchor.href = url; // assign href prop to temp anchor
??????????????if(anchor.href.indexOf(url) !== -1){ // if the browser determines that it's a potentially valid url path:
????????????????var ajax=new XMLHttpRequest();
????????????????ajax.open( "GET", url, true);
????????????????ajax.responseType = 'blob';
????????????????ajax.οnlοad= function(e){
??????????????????download(e.target.response, fileName, defaultMime);
????????????????};
????????????????setTimeout(function(){ ajax.send();}, 0); // allows setting custom ajax headers using the return:
????????????????return ajax;
????????????} // end if valid url?
????????} // end if url?
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????????//go ahead and download dataURLs right away
????????if(/^data\:[\w+\-]+\/[\w+\-]+[,;]/.test(payload)){
???????
????????????if(payload.length > (1024*1024*1.999) && myBlob !== toString ){
????????????????payload=dataUrlToBlob(payload);
????????????????mimeType=payload.type || defaultMime;
????????????}else{???????????
????????????????return navigator.msSaveBlob ???// IE10 can't do a[download], only Blobs:
????????????????????navigator.msSaveBlob(dataUrlToBlob(payload), fileName) :
????????????????????saver(payload) ; // everyone else can save dataURLs un-processed
????????????}
????????????
????????}//end if dataURL passed?
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????????blob = payload instanceof myBlob ?
????????????payload :
????????????new myBlob([payload], {type: mimeType}) ;
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????????function dataUrlToBlob(strUrl) {
????????????var parts= strUrl.split(/[:;,]/),
????????????type= parts[1],
????????????decoder= parts[2] == "base64" ? atob : decodeURIComponent,
????????????binData= decoder( parts.pop() ),
????????????mx= binData.length,
????????????i= 0,
????????????uiArr= new Uint8Array(mx);
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????????????for(i;i<mx;++i) uiArr[i]= binData.charCodeAt(i);
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????????????return new myBlob([uiArr], {type: type});
?????????}
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????????function saver(url, winMode){
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????????????if ('download' in anchor) { //html5 A[download]
????????????????anchor.href = url;
????????????????anchor.setAttribute("download", fileName);
????????????????anchor.className = "download-js-link";
????????????????anchor.innerHTML = "downloading...";
????????????????anchor.style.display = "none";
????????????????document.body.appendChild(anchor);
????????????????setTimeout(function() {
????????????????????anchor.click();
????????????????????document.body.removeChild(anchor);
????????????????????if(winMode===true){setTimeout(function(){ self.URL.revokeObjectURL(anchor.href);}, 250 );}
????????????????}, 66);
????????????????return true;
????????????}
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????????????// handle non-a[download] safari as best we can:
????????????if(/(Version)\/(\d+)\.(\d+)(?:\.(\d+))?.*Safari\//.test(navigator.userAgent)) {
????????????????url=url.replace(/^data:([\w\/\-\+]+)/, defaultMime);
????????????????if(!window.open(url)){ // popup blocked, offer direct download:
????????????????????if(confirm("Displaying New Document\n\nUse Save As... to download, then click back to return to this page.")){ location.href=url; }
????????????????}
????????????????return true;
????????????}
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????????????//do iframe dataURL download (old ch+FF):
????????????var f = document.createElement("iframe");
????????????document.body.appendChild(f);
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????????????if(!winMode){ // force a mime that will download:
????????????????url="data:"+url.replace(/^data:([\w\/\-\+]+)/, defaultMime);
????????????}
????????????f.src=url;
????????????setTimeout(function(){ document.body.removeChild(f); }, 333);
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????????}//end saver
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????????if (navigator.msSaveBlob) { // IE10+ : (has Blob, but not a[download] or URL)
????????????return navigator.msSaveBlob(blob, fileName);
????????}
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????????if(self.URL){ // simple fast and modern way using Blob and URL:
????????????saver(self.URL.createObjectURL(blob), true);
????????}else{
????????????// handle non-Blob()+non-URL browsers:
????????????if(typeof blob === "string" || blob.constructor===toString ){
????????????????try{
????????????????????return saver( "data:" +??mimeType???+ ";base64,"??+??self.btoa(blob)??);
????????????????}catch(y){
????????????????????return saver( "data:" +??mimeType???+ "," + encodeURIComponent(blob)??);
????????????????}
????????????}
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????????????// Blob but not URL support:
????????????reader=new FileReader();
????????????reader.οnlοad=function(e){
????????????????saver(this.result);
????????????};
????????????reader.readAsDataURL(blob);
????????}
????????return true;
????}; /* end download() */
}));
用法：
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download(fileUrl,name,"video/mp4");
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具体更多的用法请参考官网，
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注意 download.js第一个参数 是数据流，不是像oss那样的文件地址
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详细的配置信息可以参考我写的这篇文章：http://blog.ncmem.com/wordpress/2019/08/28/java%e6%89%b9%e9%87%8f%e4%b8%8b%e8%bd%bd/?
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