我想上传文件而不是在spring boot中使用multipart，如果我能在这方面得到你有价值的建议就太好了

import com.qcloud.cos.COSClient;
import com.qcloud.cos.ClientConfig;
import com.qcloud.cos.auth.BasicCOSCredentials;
import com.qcloud.cos.auth.COSCredentials;
import com.qcloud.cos.model.PutObjectRequest;
import com.qcloud.cos.model.PutObjectResult;
import com.qcloud.cos.region.Region;

public class FileUploader {
    private static final String secretId = "your-secret-id";
    private static final String secretKey = "your-secret-key";
    private static final String region = "your-region";
    private static final String bucketName = "your-bucket-name";

    public static void main(String[] args) {
        // 初始化COS客户端
        COSCredentials cred = new BasicCOSCredentials(secretId, secretKey);
        ClientConfig clientConfig = new ClientConfig(new Region(region));
        COSClient cosClient = new COSClient(cred, clientConfig);

        // 上传文件
        String key = "your-file-key"; // 文件在COS中的唯一标识
        String filePath = "your-file-path"; // 本地文件路径
        PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, new File(filePath));
        PutObjectResult putObjectResult = cosClient.putObject(putObjectRequest);

        // 打印上传结果
        System.out.println("ETag: " + putObjectResult.getETag());
        System.out.println("File URL: " + putObjectResult.getLocation());

        // 关闭COS客户端
        cosClient.shutdown();
    }
}