UAS2.0_DEV_TEST/server/action/file-download.js

var fs = require("fs");
var path = require("path");
const filePath = path.resolve(__dirname, '..' + path.sep + 'upload');

module.exports = function(request, response) {
    var fpath = filePath + path.sep + request.query.path;
    
    return fs.createReadStream(fpath);//得到文件输入流
};