账单-雪花主键-workerId-处理npe

accompany-base/accompany-core/src/main/java/com/accompany/core/util/WorkerIdUtil.java

@@ -7,6 +7,7 @@ import java.net.NetworkInterface;
 import java.net.SocketException;
 import java.net.UnknownHostException;
 import java.util.Arrays;
+import java.util.Enumeration;
 
 @Slf4j
 public class WorkerIdUtil {
@@ -30,17 +31,45 @@ public class WorkerIdUtil {
 
         String ip = host.getHostAddress();
         byte[] mac = null;
+        
         try {
-            mac = NetworkInterface.getByInetAddress(host).getHardwareAddress();
+            NetworkInterface networkInterface = NetworkInterface.getByInetAddress(host);
+            if (networkInterface != null) {
+                mac = networkInterface.getHardwareAddress();
+            }
         } catch (SocketException e) {
             log.error("[workerId] 获取不到ip {} 的 mac地址", ip);
-            throw new RuntimeException(e);
+        }
+        
+        // 如果通过InetAddress找不到MAC地址，则尝试遍历网络接口
+        if (mac == null) {
+            try {
+                Enumeration<NetworkInterface> networkInterfaces = NetworkInterface.getNetworkInterfaces();
+                while (networkInterfaces.hasMoreElements()) {
+                    NetworkInterface networkInterface = networkInterfaces.nextElement();
+                    if (!networkInterface.isLoopback() && networkInterface.getHardwareAddress() != null) {
+                        mac = networkInterface.getHardwareAddress();
+                        log.info("[workerId] 通过遍历网络接口获取到MAC地址");
+                        break;
+                    }
+                }
+            } catch (SocketException e) {
+                log.error("[workerId] 遍历网络接口获取MAC地址失败", e);
+            }
+        }
+
+        // 如果仍然找不到MAC地址，则使用IP地址的哈希值
+        if (mac == null) {
+            log.warn("[workerId] 无法获取MAC地址，使用IP地址哈希生成workerId");
+            long workerId = Math.abs(ip.hashCode()) % 32;
+            log.info("Generated workerId: {} from IP: {}", workerId, ip);
+            return workerId;
         }
 
         // 根据 MAC 或 IP 哈希生成 workerId
         long workerId = Math.abs(Arrays.hashCode(mac)) % 32;
 
-        log.info("Generated workerId: {} from IP: {} MAC: {}", workerId, ip, mac);
+        log.info("Generated workerId: {} from IP: {} MAC: {}", workerId, ip, Arrays.toString(mac));
         return workerId;
     }
 }