IP

1，获取ip

private static String INET_TYPE_ETH0 = "eth0";

    private static String INET_TYPE_PPP0 = "ppp0";

    private static String INET_TYPE_PPP1 = "ppp1";

public static String getIPByShell(String inetType) {
        String ifip = "";

        StringBuilder sb = new StringBuilder();
        String command = "ifconfig " + inetType;
        try {
            Process p = Runtime.getRuntime().exec(command);
            BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
            String line = null;
            while ((line = br.readLine()) != null) {
                sb.append(line);
            }
            br.close();
            p.destroy();
        } catch (IOException e) {
            e.printStackTrace();
        }

        String ifinfo = sb.toString();
        if (ifinfo.indexOf("netmask") == -1) {
            logger.warn("command=[{}] 没有返回 [netmask]相关的信息", command);
        } else {
            // 从netmask处截取，然后以空格拆分，最后一个值即为内网IP
            String[] ifinfoArr = ifinfo.substring(0, ifinfo.indexOf("netmask")).split(" ");
            ifip = ifinfoArr[ifinfoArr.length - 1];
        }
        return ifip;
    }

2，变更ip

START("adsl-start", "启动新IP"), STOP("adsl-stop", "停止新IP");

public static boolean changeIp() {
        logger.info("开始执行ip改变命令");
        return ExecuteCmdUtil.execute(VpsAdslCmdEnum.STOP.getCmd())
                && ExecuteCmdUtil.execute(VpsAdslCmdEnum.START.getCmd());
    }

ExecuteCmdUtil.execute

public static boolean execute(String cmd) {
        logger.info("开始执行[{}]命令", cmd);

        boolean excRet = true;

        if (StringUtils.isBlank(cmd)) {
            logger.warn("执行命令为空");
            return excRet;
        }

        InputStreamReader stdISR = null;
        InputStreamReader errISR = null;
        Process process = null;

        try {
            process = Runtime.getRuntime().exec(cmd);
            int exitValue = process.waitFor();

            logger.info("exitValue:" + exitValue);
            String line = null;

            stdISR = new InputStreamReader(process.getInputStream());
            BufferedReader stdBR = new BufferedReader(stdISR);
            while ((line = stdBR.readLine()) != null) {
                logger.info("STD line:" + line);
            }

            errISR = new InputStreamReader(process.getErrorStream());
            BufferedReader errBR = new BufferedReader(errISR);
            while ((line = errBR.readLine()) != null) {
                logger.info("ERR line:" + line);
            }
        } catch (IOException | InterruptedException e) {
            excRet = false;
            logger.error("执行命令结果=[{}]", excRet, e);
        } finally {
            try {
                if (stdISR != null) {
                    stdISR.close();
                }
                if (errISR != null) {
                    errISR.close();
                }
                if (process != null) {
                    process.destroy();
                }
            } catch (IOException e) {
                logger.error("正式执行命令有IO异常", e);
            }
        }

        return excRet;
    }