如何使用Java为S3对象创建自定义文件名

import com.qcloud.cos.COSClient;
import com.qcloud.cos.model.PutObjectRequest;
import com.qcloud.cos.model.PutObjectResult;

public class S3Example {
    public static void main(String[] args) {
        // 配置腾讯云密钥信息
        String secretId = "YOUR_SECRET_ID";
        String secretKey = "YOUR_SECRET_KEY";
        String region = "YOUR_REGION";
        
        // 创建S3客户端
        COSClient cosClient = new COSClient(secretId, secretKey, region);
        
        // 指定存储桶名称
        String bucketName = "YOUR_BUCKET_NAME";
        
        // 指定自定义的文件名（对象键）和待上传的文件路径
        String objectKey = "custom_filename.txt";
        String filePath = "path/to/upload/file.txt";
        
        // 创建上传请求
        PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectKey, new File(filePath));
        
        // 执行上传操作
        PutObjectResult putObjectResult = cosClient.putObject(putObjectRequest);
        
        // 打印上传结果
        System.out.println("上传成功，文件URL：" + putObjectResult.getETag());
        
        // 关闭S3客户端
        cosClient.shutdown();
    }
}