How to upload folder with sub folder to Amazon S3

Question

I need upload a folder with sub folders on Amazon S3.

I create this code saverepertoire2 But this code upload only files in the folder.

public String uploadFolder1(Path filePath) {

        PutObjectRequest objectRequest = PutObjectRequest.builder()
                .bucket(bucketName)
                .key(filePath.getFileName().toString())
                .build();
    
        // Put the object into the bucket
        CompletableFuture<PutObjectResponse> future = s3AsyncClient.putObject(objectRequest,
                AsyncRequestBody.fromFile(filePath));
        future.whenComplete((resp, err) -> {
            try {
                if (resp != null) {
                    System.out.println("Object uploaded. Details: " + resp);
                } else {
                    err.printStackTrace();
                }
            } finally {
    
                // s3Client.close();
            }
        });
    
        future.join();
    
        return "Your file " + filePath + " was successfully uploaded ASync";
    }
    
    public void saverepertoire2(String path) throws IOException {
        Path path1 = Paths.get(path);
        try (Stream<Path> paths = Files.walk(path1)) {
            paths.filter(Files::isRegularFile).forEach(x -> uploadFolder1(x));
        }
    }