public String index(Model model,String code) throws Exception {
if(!StringUtils.isEmpty(code)){
InetAddress ia = null;
try {
ia = ia.getLocalHost();
String localName = ia.getHostName();
String localIp = ia.getHostAddress();
model.addAttribute("localName",localName);
model.addAttribute("localIp",localIp);
} catch (Exception e) {
e.printStackTrace();
}
InetAddress ia1 = InetAddress.getLocalHost();// 获取本地IP对象
String macAddress = getMACAddress(ia1);
model.addAttribute("macAddress",macAddress);
model.addAttribute("projectCode",code);
}
return "index";
}
private static String getMACAddress(InetAddress ia) throws Exception {
//获得网络接口对象（即网卡），并得到mac地址，mac地址存在于一个byte数组中。
byte[] mac = NetworkInterface.getByInetAddress(ia).getHardwareAddress();
// 下面代码是把mac地址拼装成String
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);
}
// 把字符串所有小写字母改为大写成为正规的mac地址并返回
return sb.toString().toUpperCase();
}