Multer

Question

Multer

中文件名的问题

我正在使用express.js和multer将图像上传到服务器。我这样做：

var storage = multer.diskStorage({
        destination: function (req, file, callback) {
            callback(null, "../client/member/upload");
        },
        filename: function (req, file, callback) {
            console.log('1', 1);
            callback(null, file.fieldname + "_" + Date.now() + "_" + file.originalname);
        }
    });
    var upload = multer({ storage : storage}).single('userPhoto');

但问题是永远不会更改文件名。我的上传程序处理程序：

function memberUpload(request, response) {

    var storage = multer.diskStorage({
        destination: function (req, file, callback) {
            callback(null, "../client/member/upload");
        },
        filename: function (req, file, callback) {
            console.log('1', 1);
            callback(null, file.fieldname + "_" + Date.now() + "_" + file.originalname);
        }
    });
    var upload = multer({ storage : storage}).single('userPhoto');

    var folderName = path.join(__dirname, '../', 'client/member/upload');

    if (!fs.existsSync(folderName)) {
        fs.mkdir(folderName, function (err) {
            if (err) {
                return response.status(500).send(err);
            }
            else {
                upload(request, response, function (err) {
                    if (err) {
                        return response.status(400)
                            .send('No files were uploaded.');
                    }
                    var sentFile = request.files.file,
                        fileName = (request.files.file && request.files.file.name) ? request.files.file.name : 'test';

                    sentFile.mv(path.join(__dirname, '../', 'client/member/upload/', fileName), function (err) {
                        mime.lookup(path.join(__dirname, '../', 'client/member/upload/', fileName));         // => 'text/plain'
                        if (err) {
                            return response.status(500)
                                .send(err);
                        }
                        response.send({'location': '../member/upload/' + fileName});
                    });
                });
            }
        });
    }
    else {
        upload(request, response, function (err) {
            if (err) {
                return response.status(400)
                    .send('No files were uploaded.');
            }
            var sentFile = request.files.file,
                fileName = (request.files.file && request.files.file.name) ? request.files.file.name : 'test';

            sentFile.mv(path.join(__dirname, '../', 'client/member/upload/', fileName), function (err) {
                mime.lookup(path.join(__dirname, '../', 'client/member/upload/', fileName));         // => 'text/plain'
                if (err) {
                    return response.status(500)
                        .send(err);
                }
                response.send({'location': '../member/upload/' + fileName});
            });
        });
    }
}

将文件保存到名为“blobid0.jpeg”，“blobid1.png”等的正确目录中...... 我的错是什么？

Answer 1

这是我将任何文件（pdf，txt，png）上传到server.Hope的代码，这将对您有所帮助。

import time as t
t = t.time
starttime = t
def calcprod():
    prod = 1
    for i in range(1, 1000000):
        prod = prod * i
p = calcprod()
print("The result is %s digits" % (str(len(p))))
endtime = t
print("It took %s seconds to calculate" % (starttime - endtime))

重命名上传的文件nodejs和multer

Multer

1 个答案: