spring boot 使用aviator表达式引擎

1、maven 引用包

    <dependency>
            <groupId>com.googlecode.aviator</groupId>
            <artifactId>aviator</artifactId>
            <version>2.3.4</version>
        </dependency>

2、代码

   public static void main(String[] args) {

        boolean flag = true;
        int i = 0;
        Date befor = new Date();
        while (flag) {
            Map env = new HashMap();
            env.put("a", true);
            env.put("b", 1);
            env.put("c", "hh");
            String str = "a&&b!=1&&c==\"hh\"";
            Boolean result = (Boolean) AviatorEvaluator.execute(str, env);
           
            i = i + 1;
            if (formatDate(new Date(), befor) > 1) {
                System.out.print(i);
                flag = false;
            }
        }




    }

    private static int formatDate(Date nowDate, Date sqlDate) {
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String newDate = df.format(nowDate);
        String sqlDate1 = df.format(sqlDate);
        try {
            nowDate = df.parse(newDate);
            sqlDate = df.parse(sqlDate1);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        Long time = nowDate.getTime();
        Long time2 = sqlDate.getTime();
        int day = (int) ((time - time2) / (1000));
        return day;
    }

3、好处：

        这个东西性能极高，单机单线程性能每秒钟执行2000次不在话下，最高情况下，每秒单机7000多次