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", ip