sniffer基于jpcap的嗅探技术

仅用于初学者或课程设计,运行时请提前安装好jpcap包, IPPacket ippacket = (IPPacket) baowen; shujvbao1.put("网络协议", new String("IP")); shujvbao1.put("网络源IP", ippacket.src_ip.toString().substring(1, ippacket.src_ip.toString().length())); shujvbao1.put("目的IP", ippacket.dst_ip.toString().substring(1, ippacket.dst