Question

我想知道如何检索刚刚使用router.get存储的图像。任何帮助，将不胜感激！任何改善我的代码的技巧也将不胜感激！祝你有美好的一天

profile.js

var multer = require('multer');

var storage = multer.diskStorage({
    destination: function (req, file, cb) {
        cb(null, 'uploads/')
    },
    filename: function (req, file, cb) {
        cb(null, file.originalname + '-' + Date.now() + '.jpg')
    }
});


var upload = multer({ storage: storage, limits:{
    fileSize: 1024 * 1024 
} }).single('image');


router.post('/', function (req, res) {
    upload(req, res, function (err) {
        if (err) {
            // An error occurred when uploading
        }
        console.log(req.file)
        console.log(req.file.path)
        res.json({
            success: true,
            message: 'Image uploaded!'
        });

        // Everything went fine
    })
});


module.exports = router;

app.js

var express=require('express');
var app=express();
var multer = require('multer');

var bodyParser=require('body-parser');
var urlencodedParser=bodyParser.urlencoded({extended:false});

app.use(bodyParser.json()); //parse appilcation/json data
app.use(urlencodedParser);
app.use('/profile', profile);

module.exports=app;

Answer 1

您可以在GET路由中使用快速sendFile函数。您应该在上传路径中使用multer中间件来管理多部分数据。还可以使用path模块来管理目录路径。（我假设'uploads'目录位于项目的根目录中，而路由则位于'routes'目录中）

var express = require('express');
var router = express.Router();
var multer = require('multer');
var path = require('path');

var storage = multer.diskStorage({
    destination: function (req, file, cb) {
        cb(null, path.join(__dirname, '../uploads/'))
    },
    filename: function (req, file, cb) {
        cb(null, file.originalname + '-' + Date.now() + '.jpg')
    }
});


var upload = multer({
  storage: storage,
  limits: { fileSize: 1024 * 1024 }
});


router.post('/image', upload.single('image'), function (req, res) {
  console.log(req.file);
  console.log(req.file.path);
  res.json({
    success: true,
    message: 'Image uploaded!',
    name: req.file.filename
  });
  // Everything went fine

});

router.get('/image/:filename', function (req, res) {
  res.sendFile(path.join(__dirname, "../uploads/", req.params.filename));
});


module.exports = router;

multer express您如何获取刚刚上传/存储的图像

1 个答案: