文件 SHA-256 加密

health-video-server/src/main/java/com/health/video/server/service/impl/VideoServiceImpl.java

@@ -35,7 +35,10 @@ import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.IOException;
+import java.math.BigInteger;
+import java.security.MessageDigest;
 import java.util.*;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.TimeUnit;
@@ -250,6 +253,9 @@ public class VideoServiceImpl implements VideoService {
             String filePath = localPath + File.separator + "D:\\uploadVideo" + File.separator + filename;
             // 创建本地文件对象
             File localFile = new File(filePath);
+            // 计算文件的 SHA-256 哈希值（比MD5加密更安全）
+            String fileMD5 = calculateFileSHA256(localFile);
+            System.out.println(fileMD5);
             // 检查目录是否存在，如果不存在则创建
             File localDirectory = localFile.getParentFile();
             if (!localDirectory.exists()) {
@@ -305,6 +311,29 @@ public class VideoServiceImpl implements VideoService {
         }
     }
 
+    /**
+     * SHA-256
+     * @param file
+     * @return
+     */
+    private static String calculateFileSHA256(File file) {
+        try {
+            MessageDigest digest = MessageDigest.getInstance("SHA-256");
+            FileInputStream fis = new FileInputStream(file);
+            byte[] buffer = new byte[8192];
+            int bytesRead;
+            while ((bytesRead = fis.read(buffer)) != -1) {
+                digest.update(buffer, 0, bytesRead);
+            }
+            byte[] hashBytes = digest.digest();
+            BigInteger hashValue = new BigInteger(1, hashBytes);
+            return hashValue.toString(16);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
     /**
      * 发布视频
      *