计算经过时间范围

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由于公司业务变更，计算夜间服务费晚上23点–早上5点为夜间服务费时间，按分钟收费，考虑各种情况最后想出简单计算规则

这里写代码片    /**     * 分钟计算单位     */    private static final int MINTUS_TIME_UNIT=60000;    /**     * 天计算单位     */    private static final int DAY_TIME_UNIT=24*3600000;    /**     * 计算夜间服务时长     * @param startTime     * @param timeLenght     * @return     */    public static int getNightServiceTimeLong(Date startTime,long timeLong){        return getNightServiceTimeLong(startTime,new Date(startTime.getTime()+timeLong));    }    /**     * 计算夜间服务时长（返回单位分钟）     * @param startTime开始时间     * @param endTime 结束时间     * @return     */    public static int getNightServiceTimeLong(Date startTime, Date endTime){        long startLong=getDateTimetoLong(startTime);        long endLong=getDateTimetoLong(endTime);        DateTime startDate=new DateTime(startTime).withTime(5,0,0, 0);        DateTime start=new DateTime(startTime).withTime(23,0,0, 0);        DateTime end=new DateTime(endTime).withTime(5,0,0, 0);        DateTime endDate=new DateTime(endTime).withTime(23,0,0, 0);        long startMillis=start.getMillis();        long endMillis=end.getMillis();        int sumMinus=calDayDiffer(startMillis,endDate.getMillis())*360;        int startDiffer=calMintusDiffer(startMillis,startLong);        if(startDiffer>0){            sumMinus-=startDiffer;        }        int endDiffer=calMintusDiffer(endMillis,endLong);        if(endDiffer<0){            sumMinus+=endDiffer;        }        int endMany=calMintusDiffer(endDate.getMillis(),endLong);        if(endMany>0){            sumMinus+=endMany;        }        int startMany=calMintusDiffer(startLong,Math.min(startDate.getMillis(),endLong));        if(startMany>0&&startMany<300){            sumMinus+=startMany;        }        return sumMinus;    }    private static long getDateTimetoLong(Date date){        return new DateTime(date).withSecondOfMinute(0).withMillisOfSecond(0).getMillis();    }    private static int calDayDiffer(long start,long end){        return (int)((end-start)/DAY_TIME_UNIT);    }    /**     * 计算时差 返回单位分钟     * @param start     * @param end     * @return     */    private static int calMintusDiffer(long start,long end){        return (int)((end-start)/MINTUS_TIME_UNIT);    }

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