Question

我通过我的CMS提交表单，其中包含一个用于图像和文件的文件选择器。一些文字。代码运行＆amp;在我的S3帐户中创建一个具有正确名称的对象，但它已损坏。例如，我正在上传JPG图像，但当我在s3仪表板中查看它时，我只看到黑屏。

非常感谢任何帮助。

我的HTML表单：

<form enctype="multipart/form-data" action="updateSchedule" method="POST"> 
        <input type="file" name="schedulepicture" id="schedulepicture">
        <textarea rows="4" cols="50" id="ScheduleText" name="ScheduleText" maxlength="2000">                     <button type="submit" id="updateschedulebutton">Update</button>
</form>

My Node.JS脚本：

router.post('/updateschedule', isLoggedIn, upload.single('schedulepicture'), function(req, res) {
  var scheduleImageToUpload;

  //Check if image was uploaded with the form & process it
  if (typeof req.file !== "undefined") {

    //Create Amazon S3 specific object
    var s3 = new aws.S3();
   
    //This uploads the file but the file cannot be viewed.
    var params = {
      Bucket: S3_BUCKET,
      Key: req.file.originalname, //This is what S3 will use to store the data uploaded.
      Body: req.file.path, //the actual *file* being uploaded
      ContentType: req.file.mimetype, //type of file being uploaded
      ACL: 'public-read', //Set permissions so everyone can see the image
      processData: false,
      accessKeyId: S3_accessKeyId,
      secretAccessKey: S3_secretAccessKey
     }

    s3.upload( params, function(err, data) {
      if (err) {
        console.log("err is " + err);
      }
      res.redirect('../adminschedule');
    });
  }
});

Answer 1

我相信你需要传递一个流而不是文件路径，你可以像这样使用fs.createReadStream：

router.post('/updateschedule', isLoggedIn, upload.single('schedulepicture'), function(req, res) {
  var scheduleImageToUpload;

  //Check if image was uploaded with the form & process it
  if (typeof req.file !== "undefined") {

    //Create Amazon S3 specific object
    var s3 = new aws.S3();
    var stream = fs.createReadStream(req.file.path)

    //This uploads the file but the file cannot be viewed.
    var params = {
      Bucket: S3_BUCKET,
      Key: req.file.originalname, //This is what S3 will use to store the data uploaded.
      Body: stream, //the actual *file* being uploaded
      ContentType: req.file.mimetype, //type of file being uploaded
      ACL: 'public-read', //Set permissions so everyone can see the image
      processData: false,
      accessKeyId: S3_accessKeyId,
      secretAccessKey: S3_secretAccessKey
     }

    s3.upload( params, function(err, data) {
      if (err) {
        console.log("err is " + err);
      }
      res.redirect('../adminschedule');
    });
  }
});

Node.js上传到Amazon S3工作但文件损坏

1 个答案: