Preserve metadata for file upload in Spring Boot-CodePudding

I'm creating an image upload app where the user can edit image metadata. The current way I'm handling file upload is with multipart file.

fun handleFileUpload(@RequestParam files: Array<MultipartFile>): String {

This works, but I lose access to all file metadata for the images. I'm wondering what the ideal way to do this so I can access metadata? I know the Java.io.File class has metadata access.

I'd prefer to maintain drag and drop functionality on my Angular front end.

CodePudding user response：

File meta data is not image meta data...

In java we can:

screenshot of: file upload displaying image meta data using javax.imageio

And with:

<dependency>
  <groupId>com.drewnoakes</groupId>
  <artifactId>metadata-extractor</artifactId>
  <version>2.16.0</version>
</dependency>

We get (with few lines) something more like that:

Thanks to blog for javax.imageio "crawling".