multer.diskStorage - 将文件上传到文件夹时出现问题

Question

我在使用 multi.上传文件到服务器时遇到问题。 我阅读了文档并根据文档编写了代码，但文件仍然没有上传到文件夹 images

我的代码：

const express = require("express");
const app = express();
const path = require("path");

const multer = require("multer");
const storage = multer.diskStorage({
  desination: "images",
  filename: (req, file, cb) => {
    console.log(file);
    cb(null, Date.now() + path.extname(file.originalname));
  },
});

const upload = multer({ storage: storage });

app.set("view engine", "ejs");

app.get("/upload", (req, res) => {
  res.render("upload");
});

app.post("/upload", upload.single("image"), (req, res) => {
  res.send("Image Uploaded");
});

app.listen(3001);
console.log("3001 is the port");

Answer 1

你可以在 cb 之前添加 return，这对我有用。

const storage = multer.diskStorage({
    desination: "images",
    filename: (req, file, cb) => {
    console.log(file);
    return cb(null, Date.now() + path.extname(file.originalname));
    },
});`