/**
     * 获取CPU序列号
     *
     * @return CPU序列号(16位)
     * 读取失败为"0000000000000000"
     */
    private static String getCPUSerial() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            return Build.getSerial();
        }
        //读取CPU信息
        InputStreamReader inputStreamReader = null;
        BufferedReader bufferedReader = null;
        String cpu = null;
        try {
            Process process = Runtime.getRuntime().exec("cat /proc/cpuinfo");
            inputStreamReader = new InputStreamReader(process.getInputStream());
            bufferedReader = new BufferedReader(inputStreamReader);
            while ((cpu = bufferedReader.readLine()) != null) {
                if (cpu.contains("Serial")) {
                    cpu = cpu.substring(cpu.indexOf(":") + 1).trim();
                    break;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (bufferedReader != null) {
                try {
                    bufferedReader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (inputStreamReader != null) {
                try {
                    inputStreamReader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return cpu != null ? cpu.toUpperCase() : "0000000000000000";
    }