diff --git a/src/main/java/com/wbq/zuoye/BVExtractor.java b/src/main/java/com/wbq/zuoye/BVExtractor.java
new file mode 100644
index 0000000..39c955b
--- /dev/null
+++ b/src/main/java/com/wbq/zuoye/BVExtractor.java
@@ -0,0 +1,27 @@
+package com.wbq.zuoye;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class BVExtractor {
+    public static String getBVid(String url) {
+        String bv = extractBV(url);
+        if (bv != null) {git 
+            System.out.println("Extracted BV: " + bv);
+            return bv;
+        } else {
+            System.out.println("BV not found in the URL.");
+            return null;
+        }
+    }
+
+    public static String extractBV(String url) {
+        String bvPattern = "BV[0-9A-Za-z]+";
+        Pattern pattern = Pattern.compile(bvPattern);
+        Matcher matcher = pattern.matcher(url);
+        if (matcher.find()) {
+            return matcher.group();
+        }
+        return null;
+    }
+}