处理小方的小米5升级到7.0后获取不到mac地址 的问题

WeiChat/src/main/java/com/xzjmyk/pm/activity/util/MacAndIDUtil.java

@@ -8,6 +8,9 @@ import com.xzjmyk.pm.activity.ui.erp.util.CommonUtil;
 import com.xzjmyk.pm.activity.ui.erp.util.StringUtils;
 
 import java.io.FileInputStream;
+import java.net.NetworkInterface;
+import java.net.SocketException;
+import java.util.Enumeration;
 
 /**
  * Created by pengminggong on 2016/10/31.
@@ -18,12 +21,13 @@ public class MacAndIDUtil {
     public String getMac(Context ct) {
         String mac = null;
         String macOld = CommonUtil.getSharedPreferences(ct, "macaddress");
-        if (StringUtils.isEmpty(macOld)) {
+        if (macisEmpty(macOld)) {
             mac = getLocalMacAddress();
-            if (StringUtils.isEmpty(mac))
+            if (macisEmpty(mac))
                 mac = getMacFromWifiInfo(ct);
-            boolean isOk = legitimateMac(mac);//判断mac地址是否合法
-            if (isOk) {
+            if (macisEmpty(mac))
+                mac = getLocalEthernetMacAddress();
+            if (!macisEmpty(mac)) {
                 CommonUtil.setSharedPreferences(ct, "macaddress", mac);
             } else {
                 tryOpenWifi(ct);
@@ -32,13 +36,12 @@ public class MacAndIDUtil {
         } else {
             mac = macOld;
         }
-
         return mac;
     }
 
 
-    private boolean legitimateMac(String mac) {
-        return !StringUtils.isEmpty(mac) && !mac.contains("00:00:00");
+    private boolean macisEmpty(String mac) {
+        return StringUtils.isEmpty(mac) || mac.contains("00:00:00");
     }
 
     /*通过wifiInfo获取ip*/
@@ -131,4 +134,65 @@ public class MacAndIDUtil {
         }
         return softOpenWifi;
     }
+
+
+    public static String getLocalEthernetMacAddress() {
+        String mac = null;
+        try {
+            Enumeration localEnumeration = NetworkInterface
+                    .getNetworkInterfaces();
+
+            while (localEnumeration.hasMoreElements()) {
+                NetworkInterface localNetworkInterface = (NetworkInterface) localEnumeration
+                        .nextElement();
+                String interfaceName = localNetworkInterface.getDisplayName();
+
+                if (interfaceName == null) {
+                    continue;
+                }
+
+                if (interfaceName.equals("eth0")) {
+                    mac = convertToMac(localNetworkInterface
+                            .getHardwareAddress());
+                    if (mac != null && mac.startsWith("0:")) {
+                        mac = "0" + mac;
+                    }
+                    break;
+                }
+                if (interfaceName.equals("wlan0")) {
+                    mac = convertToMac(localNetworkInterface
+                            .getHardwareAddress());
+                    if (mac != null && mac.startsWith("0:")) {
+                        mac = "0" + mac;
+                    }
+                    break;
+                }
+            }
+        } catch (SocketException e) {
+            e.printStackTrace();
+        }
+        return mac;
+    }
+
+    private static String convertToMac(byte[] mac) {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < mac.length; i++) {
+            byte b = mac[i];
+            int value = 0;
+            if (b >= 0 && b <= 16) {
+                value = b;
+                sb.append("0" + Integer.toHexString(value));
+            } else if (b > 16) {
+                value = b;
+                sb.append(Integer.toHexString(value));
+            } else {
+                value = 256 + b;
+                sb.append(Integer.toHexString(value));
+            }
+            if (i != mac.length - 1) {
+                sb.append(":");
+            }
+        }
+        return sb.toString();
+    }
 }