说明：  利用JPCAP可以实现JAVA无法实现的捕获、发送网络数据包。但不支持诸如：流量调节器、QoS schedulers以及个人防火墙这一类应用。
(JAVA can be achieved by JPCAP not possible to capture, send network packets. But do not support, such as: flow regulator, QoS schedulers and personal firewall applications in this category. )