java获取linux网卡名

迷南。 2023-06-14 10:36 14阅读 0赞

/**
         * <获取网卡名称>
         *
         * @return 结果
         * @throws
         */
        public List<String> getInetName()
            throws ServiceException
        {
            String command = "ifconfig";
            Reader reader = null;
            BufferedReader inetReader = null;
            InputStream inputStream = null;
            List<String> cmdOutput = new ArrayList<>();
            List<String> inetList = new ArrayList<>();
            List<String> inetNameListTemp = new ArrayList();
            List<String> inetNameList = new ArrayList();
            String line = null;
            try
            {
                Process process = Runtime.getRuntime().exec(command);
                inputStream = process.getInputStream();
                reader = new InputStreamReader(inputStream);
                inetReader = new BufferedReader(reader);
    
                while ((line = inetReader.readLine()) != null)
                {
                    cmdOutput.add(line);
                }
                LOGGER.info("cmdOutput is {}", cmdOutput);
                if (null != cmdOutput && cmdOutput.size() > 0)
                {
                    for (String output : cmdOutput)
                    {
                        if (output.contains("Link encap"))
                        {
                            inetList.add(output);
                        }
                    }
                }
                LOGGER.info("inetList is {}", inetList);
    
                if (null != inetList && inetList.size() > 0)
                {
                    for (String output : inetList)
                    {
                        output = output.replaceAll(" ", "");
                        LOGGER.info("output is {}", output);
                        LOGGER.info("output.indexOf is {}", output.indexOf("Linkencap"));
                        inetNameListTemp.add(output.substring(0, output.indexOf("Linkencap")));
                    }
                }
                LOGGER.info("inetNameListTemp is {}", inetNameListTemp);
    
                if (null != inetNameListTemp && inetNameListTemp.size() > 0)
                {
                    for (String inetName : inetNameListTemp)
                    {
                        if (!"lo".equals(inetName) && !"docker0".equals(inetName))
                        {
                            inetNameList.add(inetName);
                        }
                    }
                }
    
                process.waitFor();
    
                return inetNameList;
            }
            catch (Exception ex)
            {
                LOGGER.error("get inetnames error.");
                return inetNameList;
            }
            finally
            {
                try
                {
                    if (null != inputStream)
                    {
                        inputStream.close();
                    }
                    if (null != reader)
                    {
                        reader.close();
                    }
                    if (null != inetReader)
                    {
                        inetReader.close();
                    }
                }
                catch (IOException e)
                {
                    LOGGER.error("close inputstream error.");
                    return inetNameList;
                }
            }
        }