オブジェクトのストレージと管理に Java と Qiniu Cloud KODO を使用する方法

<dependency>
    <groupId>com.qiniu</groupId>
    <artifactId>qiniu-java-sdk</artifactId>
    <version>7.4.0</version>
</dependency>

qiniu.accessKeyId=your_access_key_id
qiniu.secretKey=your_secret_key
qiniu.bucket=mybucket
qiniu.domain=http://your_domain_url

import com.qiniu.util.Auth;
import com.qiniu.util.StringMap;
import com.qiniu.util.UrlSafeBase64;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import org.json.JSONObject;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.UUID;

public class QiniuUtils {
    private static final String ACCESS_KEY = ConfigUtil.getProperty("qiniu.accessKeyId");
    private static final String SECRET_KEY = ConfigUtil.getProperty("qiniu.secretKey");
    private static final String BUCKET_NAME = ConfigUtil.getProperty("qiniu.bucket");
    private static final String DOMAIN = ConfigUtil.getProperty("qiniu.domain");

    // 上传文件到七牛云KODO
    public static String uploadFile(String filePath) throws IOException {
        String key = UUID.randomUUID().toString(); // 自动生成唯一的key
        String uploadToken = getUploadToken(); // 获取上传凭证

        OkHttpClient client = new OkHttpClient();
        // 读取文件内容
        byte[] data = Files.readAllBytes(Paths.get(filePath));
        RequestBody requestBody = RequestBody.create(MediaType.parse("application/octet-stream"), data);

        // 构建请求
        Request request = new Request.Builder()
                .url("http://upload.qiniu.com/putb64/" + -1 + "/key/" + UrlSafeBase64.encodeToString(key))
                .header("Content-Type", "application/octet-stream")
                .header("Authorization", "UpToken " + uploadToken)
                .post(requestBody)
                .build();

        // 发送请求
        Response response = client.newCall(request).execute();
        if (response.isSuccessful()) {
            JSONObject jsonObject = new JSONObject(response.body().string());
            String url = DOMAIN + "/" + jsonObject.getString("key");
            return url;
        } else {
            throw new IOException("Unexpected code " + response);
        }
    }

    // 获取上传凭证
    private static String getUploadToken() {
        Auth auth = Auth.create(ACCESS_KEY, SECRET_KEY);
        return auth.uploadToken(BUCKET_NAME);
    }
}

public class MainApp {
    public static void main(String[] args) throws IOException {
        String filePath = "path/to/file.jpg";
        String url = QiniuUtils.uploadFile(filePath);
        System.out.println("上传成功，文件URL为：" + url);
    }
}

// 下载文件
public static void downloadFile(String key, String savePath) throws IOException {
    String downloadUrl = DOMAIN + "/" + key;
    OkHttpClient client = new OkHttpClient();
    Request request = new Request.Builder()
            .url(downloadUrl)
            .build();
    Response response = client.newCall(request).execute();
    if (response.isSuccessful()) {
        byte[] data = response.body().bytes();
        Files.write(Paths.get(savePath), data);
        System.out.println("下载成功，文件保存路径为：" + savePath);
    } else {
        throw new IOException("Unexpected code " + response);
    }
}

public class MainApp {
    public static void main(String[] args) throws IOException {
        String key = "file.jpg";
        String savePath = "path/to/save/file.jpg";
        QiniuUtils.downloadFile(key, savePath);
    }
}

// 删除文件
public static void deleteFile(String key) throws IOException {
    Auth auth = Auth.create(ACCESS_KEY, SECRET_KEY);
    Configuration cfg = new Configuration(Zone.zone0());
    BucketManager bucketManager = new BucketManager(auth, cfg);
    bucketManager.delete(BUCKET_NAME, key);
    System.out.println("删除成功");
}

public class MainApp {
    public static void main(String[] args) throws IOException {
        String key = "file.jpg";
        QiniuUtils.deleteFile(key);
    }
}