ENOENT：没有这样的文件或目录。？

Question

这是发布数据和文件时出现的错误。我已经按照 ‘academind’ 教程来构建 Restful API 服务，我也一直在寻找此类错误的答案，但对我没有任何帮助。

我正在使用“multer”上传文件

文件夹中的“上传”文件夹可用，但它显示

ENOENT：没有这样的文件或目录，打开 ’D:\project\uploads\2018-01-24T07:41:21.832Zcheck.jpg’”

应用程序.js

 const express = require("express");
const app = express();
const morgan = require("morgan");
const bodyParser = require("body-parser");
const mongoose = require("mongoose");

const productRoutes = require("./api/routes/products");

mongoose.connect('',
(err)=>{
    if(err){console.log(err)}
    else{console.log('DB Connected')}
})
mongoose.Promise = global.Promise;

app.use(morgan("dev"));
app.use('/uploads', express.static('uploads'));
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

app.use((req, res, next) => {
  res.header("Access-Control-Allow-Origin", "*");
  res.header(
    "Access-Control-Allow-Headers",
    "Origin, X-Requested-With, Content-Type, Accept, Authorization"
  );
  if (req.method === "OPTIONS") {
    res.header("Access-Control-Allow-Methods", "PUT, POST, PATCH, DELETE, GET");
    return res.status(200).json({});
  }
  next();
});

// Routes which should handle requests
app.use("/products", productRoutes);

app.use((req, res, next) => {
  const error = new Error("Not found");
  error.status = 404;
  next(error);
});

app.use((error, req, res, next) => {
  res.status(error.status || 500);
  res.json({
    error: {
      message: error.message
    }
  });
});

module.exports = app;

产品.js

 const express = require("express");
const router = express.Router();
const mongoose = require("mongoose");
const multer = require('multer');

const storage = multer.diskStorage({
  destination: function(req, file, cb) {
    cb(null, './uploads/');
  },
  filename: function(req, file, cb) {
    cb(null, new Date().toISOString() + file.originalname);
  }
});

const fileFilter = (req, file, cb) => {
  // reject a file
  if (file.mimetype === 'image/jpeg' || file.mimetype === 'image/png') {
    cb(null, true);
  } else {
    cb(null, false);
  }
};

const upload = multer({
  storage: storage,
  limits: {
    fileSize: 1024 * 1024 * 5
  },
  fileFilter: fileFilter
});

router.post("/", checkAuth, upload.single('productImage'), (req, res, next) => {
  const product = new Product({
    _id: new mongoose.Types.ObjectId(),
    name: req.body.name,
    price: req.body.price,
    productImage: req.file.path
  });
  product
    .save()
    .then(result => {
      console.log(result);
      res.status(201).json({
        message: "Created product successfully",
        createdProduct: {
            name: result.name,
            price: result.price,
            _id: result._id,
            request: {
                type: 'GET',
                url: "http://localhost:3000/products/" + result._id
            }
        }
      });
    })
    .catch(err => {
      console.log(err);
      res.status(500).json({
        error: err
      });
    });
});

module.exports = router;

原文由 codedamn 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

在 product.js 中：

在 new Date().toISOString() 之后添加 replace() 将 “：” 更改为可接受的字符。

Windows 操作系统不接受带有 “:” 的文件

Youtube 上的人使用的是 MAC OS

例如

new Date().toISOString().replace(/:/g, '-')

原文由 Miles 发布，翻译遵循 CC BY-SA 4.0 许可协议