Springboot 初始化之前获取启动环境参数

public static String getActive(String[] args) {//args为应用启动时的参数
        String active = "";
        // 1命令行环境  --spring.profiles.active=dev
        Pattern compile = Pattern.compile("--spring\\.profiles\\.active=(.*)");
        for (String arg : args) {
            Matcher matcher = compile.matcher(arg);
            if (matcher.find()) {
                active = matcher.group(1);
            }
        }
        if (StringUtil.isNotEmpty(active)) {
            return active;
        }

        // 2Java系统属性 -Dspring.profiles.active=dev
        active = System.getProperty("spring.profiles.active");
        if (StringUtil.isNotEmpty(active)) {
            return active;
        }

        // 3操作系统环境变量 SPRING_PROFILES_ACTIVE=dev
        active = System.getenv("SPRING_PROFILES_ACTIVE");
        if (StringUtil.isNotEmpty(active)) {
            return active;
        }

        // 4配置文件 spring.profiles.active=dev
        active = PropertiesUtil.getProp("application.properties", "spring.profiles.active", "");
        return active;
    }