# -*- coding: utf-8 -*-

import socket
import struct
import os

def outputCmd(cmd):
    r = os.popen(cmd)
    text = r.read()
    r.close()
    return text

def getPCName(ip):
    return socket.gethostbyaddr(ip)


def getIpMacList():
    ipList = []
    arp_cmd = "arp -a" # 列出局域网所有 ip
    arp_result = outputCmd(arp_cmd)
    result = arp_result.split("\n")
    ipInfo = []
    total = len(result) - 3
    for idx in range(3,len(result)):
        item = {}
        line = result[idx]
        lineSplit = line.split(" ")
        ip = ''
        mac = ''
        notNullCount = 0
        for idx2 in lineSplit:
            if idx2 != "":
                notNullCount += 1
                if notNullCount == 1:
                    ip = idx2
                elif notNullCount == 2:
                    mac = idx2
        if ip == "":
            continue
        
        if mac == "":
            continue
        
        item['ip'] = ip
        item['mac'] = mac
        
        ipList.append(item)
    return ipList
    
if __name__ == '__main__':
    ipMacList = getIpMacList()
    total = len(ipMacList)
    ipInfo = []
    for idx in range(0,len(ipMacList)):
        item = {}
        ip = ipMacList[idx]['ip']
        mac = ipMacList[idx]['mac']
        name = ''
        
        if ip.startswith('192') == False:
            continue
        try:
            name = getPCName(ip)
        except Exception:
            pass
        else:
            pass
        
        if name == "" or name is None:
            continue
            
        item['ip'] = ip
        item['mac'] = mac
        item['name'] = name[0]
        ipInfo.append(item)
        print("Getting {}/{}".format(idx,total))
        
    print("ip\tmac\tname")
    for item in ipInfo:
        print("{}\t{}\t{}".format(item["ip"],item["mac"],item["name"]))
    
 
打印的结果
 
Getting 2/20
Getting 3/20
Getting 4/20
Getting 8/20
Getting 10/20
Getting 11/20
ip      mac     name
192.168.0.100   38-37-8b-ef-5a-ff       DESKTOP-OI2H5K4
192.168.0.103   28-f0-76-15-ef-fe       MACDEIMAC
192.168.0.106   64-00-6a-43-7d-bb       windows10.microdone.cn
192.168.0.117   f8-bc-12-96-a1-91       xxx-PC
192.168.0.121   b0-83-fe-69-c0-f5       DESKTOP-2O8GSR9
192.168.0.127   b8-9a-2a-54-19-97       xxx-LAPTOP

package com.thinkgem.jeesite.common.utils;

import com.google.common.collect.Lists;
import com.suyun.rfts.modules.constant.StringConstant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.List;

/**
 * @Description：
 * @Author： leo.xiong
 * @CreateDate： 2019/07/30 09:15
 * @Email： leo.xiong@suyun360.com
 * @Version：
 */
public class PrintUtil {
    private static final Logger LOGGER = LoggerFactory.getLogger(PrintUtil.class);

    public static List<InternetInfo> getIPAndHostNames() {
        List<InternetInfo> internetInfoList = Lists.newArrayList();
        InputStream is = null;
        InputStreamReader isr = null;
        BufferedReader br = null;
        String readLine = null;
        try {
            Process process = Runtime.getRuntime().exec("arp -a");
            is = process.getInputStream();
            isr = new InputStreamReader(is, "GBK");
            br = new BufferedReader(isr);
            while ((readLine = br.readLine()) != null) {
                if (StringUtils.isNotEmpty(readLine)) {
                    if (readLine.contains("接口: ")) {
                        InternetInfo internetInfo = new InternetInfo();
                        internetInfo.setIP(readLine.split("接口: ")[1].trim().split(" --- ")[0].trim());
                        internetInfo.setType("动态");
                        internetInfo.setMac(getLocalMac());
                        internetInfoList.add(internetInfo);
                    } else if (readLine.contains("动态") || readLine.contains("静态")) {
                        InternetInfo internetInfo = new InternetInfo();
                        String[] IPInfos = null;
                        IPInfos = getIPInfos(readLine, IPInfos, 14);
                        String[] macInfos = IPInfos[1].split(" {5}");
                        internetInfo.setIP(IPInfos[0].trim());
                        internetInfo.setMac(macInfos[0].trim().replace(StringConstant.SPILTSTR_TRANSVERSE_LINE, StringConstant.DEFAULT_COLON));
                        internetInfo.setType(macInfos[1].trim());
                        internetInfoList.add(internetInfo);
                    }
                }
            }
        } catch (IOException e) {
            LOGGER.error("读取局域网信息异常", e);
        } finally {
            closeStream(is, isr, br);
        }
        return internetInfoList;
    }

    private static String getLocalMac() {
        InputStream is = null;
        InputStreamReader isr = null;
        BufferedReader br = null;
        try {
            Process process = Runtime.getRuntime().exec("ipconfig -all");
            is = process.getInputStream();
            isr = new InputStreamReader(is, "GBK");
            br = new BufferedReader(isr);
            String readLine = br.readLine();
            while (readLine != null) {
                readLine = new String(readLine.getBytes("GBK"), "GBK");
                if (readLine.contains("物理地址. . . . . . . . . . . . . :")) {
                    return readLine.split("物理地址. . . . . . . . . . . . . :")[1].trim().replace(StringConstant.SPILTSTR_TRANSVERSE_LINE, StringConstant.DEFAULT_COLON);
                }
                readLine = br.readLine();
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            closeStream(is, isr, br);
        }
        return null;
    }

    private static void closeStream(InputStream is, InputStreamReader isr, BufferedReader br) {
        try {
            if (br != null) {
                br.close();
            }
            if (isr != null) {
                isr.close();
            }
            if (is != null) {
                is.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static String[] getIPInfos(String readLine, String[] IPInfos, int symbolLen) {
        StringBuffer symbolSb = new StringBuffer();
        for (int i = 0; i < symbolLen; i++) {
            symbolSb.append(" ");
        }
        IPInfos = readLine.split(symbolSb.toString());
        if (IPInfos.length != 1) {
            return IPInfos;
        }
        return getIPInfos(readLine, IPInfos, --symbolLen);
    }

    public static String getHostNameByIP(String IP) {
        InetAddress addr = null;
        try {
            addr = InetAddress.getByName(IP);
        } catch (UnknownHostException e) {
            e.printStackTrace();
        }
        return addr.getHostName();
    }

    public static class InternetInfo {
        private String hostName;
        private String IP;
        private String mac;
        private String type;
        private String port;

        public String getHostName() {
            return hostName;
        }

        public void setHostName(String hostName) {
            this.hostName = hostName;
        }

        public String getIP() {
            return IP;
        }

        public void setIP(String IP) {
            this.IP = IP;
        }

        public String getMac() {
            return mac;
        }

        public void setMac(String mac) {
            this.mac = mac;
        }

        public String getType() {
            return type;
        }

        public void setType(String type) {
            this.type = type;
        }

        public String getPort() {
            return port;
        }

        public void setPort(String port) {
            this.port = port;
        }
    }
}
 
 

 
 
已发相关文章请参考Python获取本机所有网卡的MAC地址

 
本文代码使用ARP协议获取局域网内所有计算机的IP地址与MAC地址，思路是使用系统命令arp获取ARP表并生成文本文件，然后从文件中读取和解析信息。
 
import os
 
from socket import gethostbyname, gethostname
 
# 获取本机IP地址
 
host = gethostbyname(gethostname())
 
# 获取ARP表
 
os.system('arp -a > temp.txt')
 
with open('temp.txt') as fp:
 
    for line in fp:
 
        line = line.split()[:2]
 
        if line and\
 
           line[0].startswith(host[:4]) and\
 
           (not line[0].endswith('255')):
 
            print(':'.join(line))
 
运行后会在当前文件夹中生成文本文件temp.txt，其中的内容如图所示：
 

 
本文代码提取的结果如图所示：
 

 
----------分割线----------
 
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使用 arp -a 命令，如：
 
y@ubuntu:~$ arp -a
_gateway (172.16.247.2) at 00:50:56:f2:fe:dc [ether] on ens33