From 7e9972d25b3d035201331d401c8e1a74d8f2d8e8 Mon Sep 17 00:00:00 2001
From: zxl <763096477@qq.com>
Date: 星期二, 12 八月 2025 17:11:23 +0800
Subject: [PATCH] 分享适配
---
framework/src/main/java/cn/lili/utils/COSUtil.java | 99 +++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 99 insertions(+), 0 deletions(-)
diff --git a/framework/src/main/java/cn/lili/utils/COSUtil.java b/framework/src/main/java/cn/lili/utils/COSUtil.java
index c6b5731..6c19fa4 100644
--- a/framework/src/main/java/cn/lili/utils/COSUtil.java
+++ b/framework/src/main/java/cn/lili/utils/COSUtil.java
@@ -18,9 +18,15 @@
import com.tencent.cloud.cos.util.Jackson;
import lombok.RequiredArgsConstructor;
import org.apache.commons.collections4.CollectionUtils;
+import org.bytedeco.javacv.*;
+import org.bytedeco.opencv.global.opencv_imgproc;
+import org.bytedeco.opencv.opencv_core.Mat;
+import org.bytedeco.opencv.opencv_core.Size;
+import org.springframework.mock.web.MockMultipartFile;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
+import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.URL;
@@ -39,6 +45,99 @@
private final COSConfigProperty cosConfigProperty;
/**
+ * 浠庣綉缁滆棰慤RL鎴彇绗竴绉掔敾闈紝杩斿洖MultipartFile绫诲瀷
+ * @param videoUrl 缃戠粶瑙嗛鍦板潃
+ * @param width 灏侀潰瀹藉害
+ * @param height 灏侀潰楂樺害
+ * @return 灏侀潰鍥剧墖鐨凪ultipartFile瀵硅薄
+ * @throws Exception 澶勭悊寮傚父
+ */
+ public MultipartFile captureVideoCoverAsMultipart(String videoUrl, Integer width, Integer height) throws Exception {
+ // 璁剧疆榛樿瀹介珮
+ int targetWidth = width != null && width > 0 ? width : 800;
+ int targetHeight = height != null && height > 0 ? height : 600;
+
+ // 鐢熸垚鍞竴鏂囦欢鍚嶏紙鐢ㄤ簬MultipartFile鐨勫師濮嬫枃浠跺悕锛�
+ String fileName = UUID.randomUUID().toString() + ".jpg";
+
+ // 浣跨敤鍐呭瓨娴佸鐞嗗浘鐗囷紝閬垮厤涓存椂鏂囦欢
+ ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+ FFmpegFrameGrabber grabber = null;
+
+ try {
+ // 鍒濆鍖栬棰戞姄鍙栧櫒
+ grabber = new FFmpegFrameGrabber(videoUrl);
+ grabber.start();
+
+ // 瀹氫綅鍒扮涓�绉�
+ grabber.setTimestamp(1000000); // 1绉� = 1,000,000寰
+
+ // 鑾峰彇瑙嗛甯�
+ Frame frame = grabber.grabImage();
+ if (frame == null) {
+ throw new RuntimeException("鏃犳硶鑾峰彇瑙嗛甯э紝鍙兘瑙嗛鏍煎紡涓嶆敮鎸佹垨URL鏃犳晥");
+ }
+
+ // 杞崲涓篗at骞惰皟鏁村昂瀵�
+ OpenCVFrameConverter.ToMat converter = new OpenCVFrameConverter.ToMat();
+ Mat mat = converter.convert(frame);
+ Mat resizedMat = new Mat();
+ opencv_imgproc.resize(mat, resizedMat, new Size(targetWidth, targetHeight));
+
+ // 灏嗗鐞嗗悗鐨勫抚鍐欏叆鍐呭瓨娴�
+ Java2DFrameConverter java2dConverter = new Java2DFrameConverter();
+ ImageIO.write(
+ java2dConverter.getBufferedImage(converter.convert(resizedMat)),
+ "jpg",
+ outputStream
+ );
+
+ // 灏嗗唴瀛樻祦杞崲涓篗ultipartFile
+ ByteArrayInputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
+ return new MockMultipartFile(
+ "file", // 琛ㄥ崟瀛楁鍚嶏紙鍙嚜瀹氫箟锛�
+ fileName, // 鍘熷鏂囦欢鍚�
+ "image/jpeg", // 鏂囦欢绫诲瀷
+ inputStream // 鏂囦欢娴�
+ );
+ } finally {
+ // 閲婃斁璧勬簮
+ if (grabber != null) {
+ try {
+ grabber.stop();
+ grabber.release();
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+ outputStream.close();
+ }
+ }
+
+
+
+
+ /**
+ * 浠庡畬鏁碪RL涓彁鍙朇OS鏂囦欢key
+ * @param fullUrl 瀹屾暣URL
+ * @return COS鏂囦欢key
+ */
+ public String extractFileKeyFromUrl(String fullUrl) {
+ // 鍘婚櫎鍗忚鍜屽煙鍚嶉儴鍒�
+ String endpoint = cosConfigProperty.getEndpoint();
+ if (fullUrl.startsWith(endpoint)) {
+ return fullUrl.substring(endpoint.length() + 1);
+ }
+ // 濡傛灉URL鍖呭惈bucket鍚嶇О
+ String bucketUrl = "https://" + cosConfigProperty.getBucket() + "." + endpoint;
+ if (fullUrl.startsWith(bucketUrl)) {
+ return fullUrl.substring(bucketUrl.length() + 1);
+ }
+ // 濡傛灉宸茬粡鏄浉瀵硅矾寰勶紝鐩存帴杩斿洖
+ return fullUrl;
+ }
+
+ /**
* 鑾峰彇sts涓存椂璁块棶鍑瘉
*
* @return
--
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