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获取android 手机mac与device_id

public static String getDeviceInfo(Context context) {    try{      org.json.JSONObject json = new org.json.JSONObject();      android.telephony.TelephonyManager tm = (android.telephony.TelephonyManager) context          .getSystemService(Context.TELEPHONY_SERVICE);        String device_id = tm.getDeviceId();            android.net.wifi.WifiManager wifi = (android.net.wifi.WifiManager) context.getSystemService(Context.WIFI_SERVICE);                String mac = wifi.getConnectionInfo().getMacAddress();      json.put("mac", mac);            if( TextUtils.isEmpty(device_id) ){        device_id = mac;      }            if( TextUtils.isEmpty(device_id) ){        device_id = android.provider.Settings.Secure.getString(context.getContentResolver(),android.provider.Settings.Secure.ANDROID_ID);      }            json.put("device_id", device_id);            return json.toString();    }catch(Exception e){      e.printStackTrace();    }  return null;}                  

  ps:清单文件中需要的权限

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>

获取android 手机mac与device_id