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fix mac null bug

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This commit is contained in:
Looly
2020-09-04 17:51:10 +08:00
parent 2e6515ef06
commit 9d8f4d725c
2 changed files with 7 additions and 2 deletions
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8
hutool-core/src/main/java/cn/hutool/core/net/NetUtil.java
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@@ -507,9 +507,12 @@ public class NetUtil {
return null;
}
byte[] mac;
byte[] mac = null;
try {
mac = NetworkInterface.getByInetAddress(inetAddress).getHardwareAddress();
final NetworkInterface networkInterface = NetworkInterface.getByInetAddress(inetAddress);
if(null != networkInterface){
mac = networkInterface.getHardwareAddress();
}
} catch (SocketException e) {
throw new UtilException(e);
}
@@ -526,6 +529,7 @@ public class NetUtil {
}
return sb.toString();
}
return null;
}