使用Java SDK对接七牛云数据万象：如何实现多媒体数据处理和管理？

<dependency>
    <groupId>com.qiniu</groupId>
    <artifactId>qiniu-java-sdk</artifactId>
    <version>7.2.0</version>
</dependency>

import com.qiniu.util.Auth;
import com.qiniu.http.Response;
import com.qiniu.storage.UploadManager;
import com.qiniu.storage.Configuration;

public class QiniuUploadDemo {

    public static void main(String[] args) {
        // 需要上传的文件路径
        String filePath = "/path/to/file.jpg";
        // 七牛云的Access Key和Secret Key
        String accessKey = "your-access-key";
        String secretKey = "your-secret-key";
        // 创建认证对象
        Auth auth = Auth.create(accessKey, secretKey);
        // 生成上传凭证
        String uploadToken = auth.uploadToken("your-bucket");
        // 创建上传对象
        UploadManager uploadManager = new UploadManager(new Configuration());
        try {
            // 调用put方法上传文件
            Response response = uploadManager.put(filePath, null, uploadToken);
            // 打印上传结果
            System.out.println(response.bodyString());
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

import com.qiniu.processing.OperationManager;
import com.qiniu.processing.OperationStatus;
import com.qiniu.util.Auth;

public class QiniuImageWatermarkDemo {

    public static void main(String[] args) {
        // 七牛云的Access Key和Secret Key
        String accessKey = "your-access-key";
        String secretKey = "your-secret-key";
        // 创建认证对象
        Auth auth = Auth.create(accessKey, secretKey);
        // 待处理的图片URL
        String sourceUrl = "http://your-bucket.qiniudn.com/image.jpg";
        // 水印图片URL
        String watermarkUrl = "http://your-bucket.qiniudn.com/watermark.png";
        // 图片处理命令
        String imageMogr2 = "imageView2/1/w/200/h/200|watermark/1/image/" + Auth.urlSafeBase64Encode(watermarkUrl) + "/gravity/SouthEast";
        // 拼接完整的处理URL
        String targetUrl = sourceUrl + "?" + imageMogr2;
        // 创建操作管理器
        OperationManager operationManager = new OperationManager(auth);
        try {
            // 执行图片处理操作
            OperationStatus status = operationManager.pfop("your-bucket", sourceUrl, imageMogr2, targetUrl, true);
            // 打印操作状态
            System.out.println(status.statusCode);
            System.out.println(status.error);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

import com.qiniu.processing.OperationManager;
import com.qiniu.processing.OperationStatus;
import com.qiniu.util.Auth;

public class QiniuVideoSnapshotDemo {

    public static void main(String[] args) {
        // 七牛云的Access Key和Secret Key
        String accessKey = "your-access-key";
        String secretKey = "your-secret-key";
        // 创建认证对象
        Auth auth = Auth.create(accessKey, secretKey);
        // 待处理的视频URL
        String sourceUrl = "http://your-bucket.qiniudn.com/video.mp4";
        // 截图命令
        String vframe = "vframe/jpg/offset/1/w/480/h/320";
        // 拼接完整的处理URL
        String targetUrl = sourceUrl + "?" + vframe;
        // 创建操作管理器
        OperationManager operationManager = new OperationManager(auth);
        try {
            // 执行视频截图操作
            OperationStatus status = operationManager.pfop("your-bucket", sourceUrl, vframe, targetUrl, true);
            // 打印操作状态
            System.out.println(status.statusCode);
            System.out.println(status.error);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}