code: public static String getFullyLocalHostName() {
  		String hostName = null;
  		try {
  			InetAddress inet = InetAddress.getLocalHost();
  			hostName = inet.getCanonicalHostName();
  		} catch (UnknownHostException e) {
  			e.printStackTrace();
  		}
  		return hostName;
  	}
docs: #func 返回主机名的全限定域名<br>
  
  @author v_dongguoshuang
  @version 4.0.0