init

src/main/java/server/TcpServer.java

@@ -16,6 +16,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.net.InetAddress;
+import java.net.NetworkInterface;
 
 /**
  * @author yuli
@@ -72,6 +73,18 @@ public class TcpServer {
         InetAddress addr = InetAddress.getLocalHost();
         logger.info("Local HostAddress:"+addr.getHostAddress());
         String hostname = addr.getHostName();
+        byte[] mac = NetworkInterface.getByInetAddress(addr).getHardwareAddress();
+
+        StringBuffer sb = new StringBuffer();
+        for (int i = 0; i < mac.length; i++) {
+            if (i != 0) {
+                sb.append("-");
+            }
+            // mac[i] & 0xFF 是为了把byte转化为正整数
+            String s = Integer.toHexString(mac[i] & 0xFF);
+            sb.append(s.length() == 1 ? 0 + s : s);
+        }
+        logger.info("mac: "+sb.toString());
         logger.info("Local host name: "+hostname);
         b.bind(addr.getHostAddress(), PORT).sync();
         logger.info("TCP Server Started");