Express实现图片上传

首先在node下面下载Express以及multer

npm i express
npm i multer

然后写代码

const Express = require("express");
const app = new Express;
const fs = require("fs");
const multer = require("multer");
var upload = multer({ dest: 'uploads/' })//当前目录下建立文件夹uploads
app.post('/uploads', upload.single('files'), function (req, res, next) { res.send("12") });
app.listen(3000, () => { console.log(123) });
app.get("/form", function (req, res) { res.send(fs.readFileSync("./form.html", "utf8")) });

再启动node就可以实现图片上传，接下来是多个图片上传

const Express = require("express");
const app = new Express;
const fs = require("fs");
const multer = require("multer");
var upload = multer({ dest: 'uploads/' })//当前目录下建立文件夹uploads
app.post('/uploads', upload.array('files',2), function (req, res, next) { res.send("12") });
app.listen(3000, () => { console.log(123) });
app.get("/form", function (req, res) { res.send(fs.readFileSync("./form.html", "utf8")) });

只需略微修改便可以