如何防止MultipartFile在Spring Boot中自动保存到本地目录中？

Question

My application is writtent in Spring boot. I follow this tutorial https://spring.io/guides/gs/uploading-files/ to write an endpoint to upload image.

I was able to receive the image . All I want to do is to upload it to my own storage in another host and I also can do this. But I don't understand why the file is automatically saved in my project's directory. The directory will always contain images (sample.png , sample1.png) like this and it's not good on the production server.

The directory looks like this.

How can i prevent this?.

Answer 1

If you simply copied the source code of the guide on Spring's website, then that's the expected behaviour since that's what the code in the guide does.

BufferedOutputStream stream = new BufferedOutputStream(new FileOutputStream(new File(Application.ROOT + "/" + name)));
FileCopyUtils.copy(file.getInputStream(), stream);
stream.close();

You need to pass a different path to FileOutputStream where the file will be written.