Java を使用して Qiniu Cloud 経由でファイルをアップロードおよびダウンロードするにはどうすればよいですか?

<dependencies>
  <dependency>
    <groupId>com.qiniu</groupId>
    <artifactId>qiniu-java-sdk</artifactId>
    <version>[7.2.3, 7.2.3]</version>
  </dependency>
</dependencies>

import com.qiniu.util.Auth;

public class QiniuUploadExample {

  public static void main(String[] args) {
    String accessKey = "Your_Access_Key";
    String secretKey = "Your_Secret_Key";
    String bucket = "Your_Bucket_Name";
    String localFilePath = "Path_To_Local_File";

    Auth auth = Auth.create(accessKey, secretKey);
    String uploadToken = auth.uploadToken(bucket);

    // 此处可添加其他参数，如指定存储空间的域名
    // Configuration cfg = new Configuration(Zone.zone0());

    UploadManager uploadManager = new UploadManager();

    try {
      Response response = uploadManager.put(localFilePath, null, uploadToken);
      // 解析上传成功的结果
      DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
      System.out.println(putRet.key);
      System.out.println(putRet.hash);
    } catch (QiniuException ex) {
      Response r = ex.response;
      System.err.println(r.toString());
      try {
        System.err.println(r.bodyString());
      } catch (QiniuException ex2) {
        // ignore
      }
    }
  }
}

Configuration cfg = new Configuration(Zone.zone0());

import com.qiniu.util.Auth;
import com.qiniu.util.StringMap;

public class QiniuDownloadExample {

  public static void main(String[] args) {
    String accessKey = "Your_Access_Key";
    String secretKey = "Your_Secret_Key";
    String domain = "Your_Domain";
    String fileName = "Your_File_Name";

    Auth auth = Auth.create(accessKey, secretKey);
    StringMap map = new StringMap();
    String downloadUrl = auth.privateDownloadUrl(domain + "/" + fileName, 3600, map);

    System.out.println(downloadUrl);
  }
}