Express 限制文件大小 azurewebsites

Question

我正在尝试将文件从前端上传到后端并将文件存储在 azurestorage 上，当文件大小小于 30mb 时我的代码工作正常，但如果文件大小大于 30mb 则不起作用

console.log('- 11111 -')
let fileObj = {};
let companyId = 'tetst';
var datetimestamp = Date.now();
var aux = Math.floor((Math.random() * 1000) + 100);
datetimestamp = datetimestamp + aux.toString();
let percentage = 0;
let body = req.body;

console.log('- 1122112 -')



let tran;
try {

    console.log('- 1 -')

    var blobService = azureStorage.createBlobService(storageConnectionString);
    var form = new multiparty.Form();
    await form.on('part', async function(part) {
        if (part.filename) {

            console.log('- 2 -')

            var size = part.byteCount;

            fileObj.originalname = part.filename;
            fileObj.contenttype = part.headers['content-type'];

            var name = companyId +'/' + datetimestamp + '.' +part.filename.split('.')[part.filename.split('.').length -1];

            fileObj.name = name;

            await blobService.createBlockBlobFromStream(container, name, part, size, async function(error, result, response) {
                if (error) {
                    res.status(409).send({ Grrr: error });
                    return;
                }
                console.log('- 22 -')
                fileObj.BlobResult = result;
                fileObj.response = response;

                res.status(201).send();

            });
        } else {
            form.handlePart(part);

        }
        part.resume();
    });


    // Close emitted after form parsed
    await form.on('close', function() {
        console.log('Upload completed!');

    });
    await form.on('aborted', () => {
        console.log('aborted!!!')
    });
    // Errors may be emitted
    // Note that if you are listening to 'part' events, the same error may be
    // emitted from the `form` and the `part`.
    await form.on('error', function(err) {
        console.log('Error parsing form: ' + err.stack);
        res.status(400).send(err);
    });
    // Parse req
    form.parse(req);

}
catch(err) {        

    next(err);
}

如果文件大于 30mb，则不显示 console.log。

在本地主机上它每次都能工作，如果大小大于 30mb（我测试了 104mb 文件）但是当代码在 azure（azurewebsites）中时，它不起作用

快递：v4.16.4 节点：v12.16.2

Answer 1

我在 web.config

上用这个解决了

<system.webServer>
<security>
    <requestFiltering>
        <requestLimits maxAllowedContentLength="2147483648" />
    </requestFiltering>
</security>

Express 限制文件大小 azurewebsites

Express limit file size azurewebsites

node.js

azure

express

azure-storage

multiparty