spring 定时器

package com.test.task;
    import java.text.ParseException;
    import java.text.SimpleDateFormat;
    import java.util.ArrayList;
    import java.util.Arrays;
    import java.util.Calendar;
    import java.util.Date;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    import org.springframework.scheduling.annotation.Scheduled;
    import org.springframework.stereotype.Component;
    @Component("myTask")
    public class myTask {
        @Scheduled(cron = "0 0 * * * ?") //每小时执行一次
        public void firstTime() throws Exception {
            Calendar calendar = Calendar.getInstance();
            Date currentStartTime = calendar.getTime();
            if(isWorkday(currentStartTime)){
                List<Map<String,Object>> data = testData();  //测试数据
                for(Map<String,Object> map : data){
                    map.put("state", "1");
                    update(map); //更新操作
                }
                 
            }
        }
         
        /**
         * 计算是否超过h小时
         */
        private boolean overtime(Date oldDate, int h){
            long maxSeconds = h * 60 * 60; //秒数             
            Calendar calendar = Calendar.getInstance();
            Date today = calendar.getTime();
            long now = calendar.getTimeInMillis()/1000;
            calendar.clear();
            calendar.setTime(oldDate);
            long old = calendar.getTimeInMillis()/1000;
            int num = countPlayday(oldDate,today); //计算期间休息的天数
            int playdaySeconds = num * 24 * 60 * 60; //休息天总秒数
            //公式: 现在日期转换总分钟数 - 过去日期转换总分钟数 - 此期间休息天的分钟数 >= 参数h小时的分钟数
            if(now/60 - old/60 - playdaySeconds/60 >= maxSeconds/60){ //精确到分,如果精确到秒去掉除60
                return true;
            }
            return false;
        }
        /**
         * 判断是否是工作日
         * true:工作日   false:休息日
         * 与"休息日列表"有关,该列表所示日期区间必须涵盖本参数date
         * @param date
         */
        private boolean isWorkday(Date date){   
            String yyyyMMdd = new SimpleDateFormat("yyyyMMdd").format(date);
            return !playdayCalendar().contains(yyyyMMdd);
        }
        /**
         * 计算时间段内有几天休息天
         * 与"休息日列表"有关,该列表必须涵盖此时间段 begin ~ end
         * @param begin
         * @param end
         */
        private int countPlayday(Date begin, Date end){
            int num = 0;
            Calendar calendar = Calendar.getInstance();
            calendar.clear();
            calendar.setTime(begin);
            long beginMillis = calendar.getTimeInMillis();
            calendar.setTime(end);
            long endMillis = calendar.getTimeInMillis();
            if(beginMillis <= endMillis){
                long millis = beginMillis;
                long onedayMillis = 24 * 60 * 60 * 1000; //1天的毫秒数
                while(true){
                    calendar.setTimeInMillis(millis);
                    if(!isWorkday(calendar.getTime())){ //非工作日
                        num ++;
                    }
                    millis = millis + onedayMillis;  //下一天
                    if(millis/(60*1000) > endMillis/(60*1000)){ //精确到分
                        break;
                    }
                }
            }
            return num;
        }
        /**
         * 休息日列表,按月份列出
         * 格式:yyyyMMdd
         */
        private List<String> playdayCalendar(){
            String[] playdays =
            {
                /**三月*/
                "20150301",
                "20150307","20150308","20150314","20150315",
                "20150321","20150322","20150328","20150329",
                /**四月*/
                "20150404","20150405","20150406",
                "20150411","20150412","20150418","20150419",
                "20150425","20150426",
                /**五月*/
                "20150501","20150502","20150503",
                "20150509","20150510","20150516","20150517",
                "20150523","20150524","20150530","20150531",
                /**六月*/
                "20150606","20150607","20150613","20150614",
                "20150620","20150621","20150622",
                "20150627","20150628"
            };
             
            return Arrays.asList(playdays);

        }    
        /**
         * 对象转Integer
         */
        private Integer parseInt(Object obj){
            try {
                return Integer.parseInt(obj.toString());
            } catch (Exception e) {
                return -100;
            }
        }
        //=========下面测试方法=====================================
        private String format(Date date){
            SimpleDateFormat df=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            return df.format(date);
        }
        private Date parse(String str){
            Date date = null;
            SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            try {
                date = df.parse(str);
            } catch (ParseException e) {
            }
            return date;
        }
        private int update(Map<String,Object> map){ //模拟更新
            return 1;
        }
        private List<Map<String,Object>> testData(){ //模拟数据
            List<Map<String,Object>> list = new ArrayList<Map<String,Object>>();
            Map<String,Object> map = new HashMap<String,Object>();
            for(int i=0;i<10;i++){
                map = new HashMap<String,Object>();
                list.add(map);
            }
            return list;
        }
         
        public static void main(String[] args) {
            myTask t = new myTask();
    //      System.out.println(t.format(new Date()));
    //      System.out.println(t.parse("2015-3-10 12:12:59"));     
            Calendar calendar = Calendar.getInstance();
    //      calendar.set(calendar.HOUR_OF_DAY, 17);
            System.out.println(t.format(calendar.getTime()));      
            calendar.set(calendar.MONTH, 3); //4月份
            calendar.set(calendar.DAY_OF_MONTH, 25);        
    //      System.out.println(t.overtime(calendar.getTime(), 24));;
    //      System.out.println(t.isWorkday(calendar.getTime()));;           
            System.out.println(t.countPlayday(new Date(),calendar.getTime()));           
        }
    }