重命名 multipartFile 时出现 OutOfMemoryError

Question

I need to rename a mutipartFile before uploading it.

I used MockMultipartFile to rename it but an OutOfMemoryError occurs because it 'sa large file and MockMultipartFile loads multipartFile.getBytes() .

Is there another solution?

My code is :

multipartFile = new MockMultipartFile(mf.getName(), "nomFichier", mf.getContentType(),mf.getBytes());

Answer 1

When dealing with file uploads, especially big ones, files should be processed as streams , for example using MockMultipartFile.getInputStream(). The wrong way to do it is to inhale the whole thing into memory; as using the getBytes() method you described.