如何让multerS3将一组文件上传到我的存储桶中？

npm install multer aws-sdk

const aws = require('aws-sdk');
const multer = require('multer');
const multerS3 = require('multer-s3');

aws.config.update({
  secretAccessKey: 'YOUR_SECRET_ACCESS_KEY',
  accessKeyId: 'YOUR_ACCESS_KEY_ID',
  region: 'YOUR_REGION'
});

const s3 = new aws.S3();
const bucketName = 'YOUR_BUCKET_NAME';

const upload = multer({
  storage: multerS3({
    s3: s3,
    bucket: bucketName,
    acl: 'public-read', // 设置文件的访问权限，这里设置为公开读取
    metadata: function (req, file, cb) {
      cb(null, {fieldName: file.fieldname});
    },
    key: function (req, file, cb) {
      cb(null, Date.now().toString()) // 设置文件的键（文件名），这里使用时间戳
    }
  })
});

app.post('/upload', upload.array('files'), function(req, res, next) {
  // 处理上传成功后的逻辑
});