URL 到使用 Multer 上传的文件

Question

我正在使用 Multer 上传一些文件，我想知道上传后访问这些文件的推荐方式是什么。

这是我的代码：

server.js

app.use('/', require('./routes'));

routes/index.js

var teacher = require('./teachers.js');

router.post('/upload', teacher.uploadAvatar);

routes/teachers.js

var multer      = require('multer');
var upload      = multer({ dest: 'uploads/teacher/' }).single('avatar');

uploadAvatar: function(req, res) {
    upload(req, res, function(err) {
        console.log(req.body);
        console.log(req.file);

        if(err) {
            return res.end("Error uploading file.");
        }
        res.end("File is uploaded");
    });
}

访问以下 Url localhost:8000/uploads/teacher/uploaded_file_name.png 给出错误 Error: Not Found.

Answer 1

您需要为 static 项资产（包括上传）创建一个 public 文件夹。因此您的文件夹结构将类似于 ./public/uploads/teacher/.

然后您必须更新 routes/teachers.js 中的以下行：

var upload      = multer({ dest: 'uploads/teacher/' }).single('avatar');

至：

var upload      = multer({ dest: 'public/uploads/teacher/' }).single('avatar');

并将以下行添加到您的 server.js 以提供来自 public 目录的静态资源：

app.use(express.static('public'));

然后您应该可以访问 localhost:8000/uploads/teacher/uploaded_file_name.png

URL 到使用 Multer 上传的文件

URL to file which was uploaded with Multer

javascript

node.js

multer