1. node 文件流下载

.pipe()

request(Base.mergeRequestOptions({                    http: DWY_GLOBAL.server.Static.http,                    host: DWY_GLOBAL.server.Static.host,                    port: DWY_GLOBAL.server.Static.port,                    headers:{'Content-type':'application/json'},                    method: 'post',                    url: '/zipDownload',                    body:JSON.stringify(data),                }, req, res)).pipe(res)                              request(Base.mergeRequestOptions({                    method: 'get',                    url: '/api/orders/completeSet/export?'+ queryString.stringify(req.query),                }, req, res)).pipe(res)

2.Blob

$http.post(URL , {    parameter:parameter},{    responseparameterType: 'arraybuffer'}).then(function (res) {    var blob = new Blob([res.data], {type: 'application/vnd.ms-excel'}),fileName = '文件名称';    downFile(blob, fileName);)};function downFile(blob, fileName) {    if (window.navigator.msSaveOrOpenBlob) {        navigator.msSaveBlob(blob, fileName);    } else {        var link = document.createElement('a');        link.href = window.URL.createObjectURL(blob);        link.download = fileName;        link.click();        window.URL.revokeObjectURL(link.href);    }}

3.模拟a标签

const saveLink = document.createElementNS('http://www.w3.org/1999/xhtml', 'a');  saveLink.href = 'http://jhtcc.com/Img/5a6e9b150aa98.png';  saveLink.download = '5a6e9b150aa98.png';  const event = document.createEvent('MouseEvents');  event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);  saveLink.dispatchEvent(event);