packagecom.wdcloud.monitoring.common;importjava.text.SimpleDateFormat;importjava.util.ArrayList;importjava.util.Calendar;importjava.util.Date;importjava.util.List;importcom.wdcloud.monitoring.Model.WeekInfoModel;public classDateUtils {//是否打印日志

private static boolean isLog = false;/*** 获取本月周次和日期时间段信息

*

*@return

*/

public static ListgetThisMonthWeekDate() {

SimpleDateFormat format= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

List list = new ArrayList();//1 获取本月的第一天

Date firstDayOfMonth =getFirstDayOfMonth();

Calendar firstDayOfMonthCal=Calendar.getInstance();

firstDayOfMonthCal.setFirstDayOfWeek(Calendar.MONDAY);

firstDayOfMonthCal.setTime(firstDayOfMonth);//2 获取本月第一周第一天

Date firstWeekFirstDay =getFirstDayOfFirstWeekOfMonth();

Calendar firstWeekFirstDayCal=Calendar.getInstance();

firstWeekFirstDayCal.setFirstDayOfWeek(Calendar.MONDAY);

firstWeekFirstDayCal.setTime(firstWeekFirstDay);//3 获取本次周期起止时间

Date sDate = null;//本月第一周第一天

Date eDate = null;//本月最后一周最后一天

Calendar sCal =Calendar.getInstance();

Calendar eCal=Calendar.getInstance();

sCal.setFirstDayOfWeek(Calendar.MONDAY);

sCal.setFirstDayOfWeek(Calendar.MONDAY);//获取本月第一天是周几

int weekDay = firstDayOfMonthCal.get(Calendar.DAY_OF_WEEK) - 1;//如果是周末，起始时间就是本月第一周第一天//否则起始时间就是本月第一周第一天 倒退7天

if (weekDay == 6 || weekDay == 0 || weekDay == 1) {//周六或周天

sDate =firstWeekFirstDay;

}else{

firstWeekFirstDayCal.getTime();

firstWeekFirstDayCal.add(Calendar.DATE,-7);

sDate=firstWeekFirstDayCal.getTime();

}

sCal.setTime(sDate);//结束时间是起始时间+34天(5周)

eCal.setTime(sDate);

eDate=eCal.getTime();

eCal.add(Calendar.DATE,34);

eDate=eCal.getTime();

Date cDate= newDate();if (cDate.getTime()

eDate=cDate;

}if(isLog) {

System.out.println(" 本月统计起止时间是：" + format.format(sDate) + " 到 "

+format.format(eDate));

System.out

.println("-------------------------------------------------------------------------------");

}//4 循环得到周次信息

for (int i = 0; i < 5; i++) {//循环5周次

WeekInfoModel model = newWeekInfoModel();

Calendar endTime=Calendar.getInstance();

endTime.setFirstDayOfWeek(Calendar.MONDAY);

endTime.setTime(sDate);

endTime.set(Calendar.HOUR_OF_DAY,23);

endTime.set(Calendar.MINUTE,59);

endTime.set(Calendar.SECOND,59);

endTime.add(Calendar.DATE,6);

model.setIndexOfWeek(i+ 1);

model.setStartDateOfWeek(sDate);

model.setEndDateOfWeek(endTime.getTime());

Date currDate= newDate();//如果当前时间在某个周次内

if (sDate.getTime() currDate.getTime()) {

model.setEndDateOfWeek(currDate);if(isLog) {

System.out.println(" 本月第" + (i + 1) + "周起止时间是："

+ format.format(sDate) + " 到 "

+format.format(currDate));

}

list.add(model);break;

}if(isLog) {

System.out.println(" 本月第" + (i + 1) + "周起止时间是："

+ format.format(sDate) + " 到 "

+format.format(endTime.getTime()));

}

list.add(model);

sCal.add(Calendar.DATE,7);

sDate=sCal.getTime();

}returnlist;

}//获取本月第一天

public staticDate getFirstDayOfMonth() {

Calendar now=Calendar.getInstance();//Date date = new Date(2015 - 1900, 12 - 1, 1);//now.setTime(date);

now.set(Calendar.DATE, now.getActualMinimum(Calendar.DATE));

now.set(Calendar.HOUR_OF_DAY,0);

now.set(Calendar.MINUTE,0);

now.set(Calendar.SECOND,0);returnnow.getTime();

}//获取本月第一周第一天

public staticDate getFirstDayOfFirstWeekOfMonth() {

Calendar now=Calendar.getInstance();

now.setFirstDayOfWeek(Calendar.MONDAY);

now.setTime(getFirstDayOfMonth());int i = 1;while (now.get(Calendar.DAY_OF_WEEK) !=Calendar.MONDAY) {

now.set(Calendar.DAY_OF_MONTH, i++);//设置这个月的星期1 为几号

}

Date firstMonday= now.getTime();//取得日期和时间

String dtStr = new SimpleDateFormat("YYYY-MM-dd").format(firstMonday);//格式化日期

if(isLog) {

System.out

.println("-------------------------------------------------------------------------------");

System.out.println(" 本月第一周第一天是：" +dtStr);

System.out

.println("-------------------------------------------------------------------------------");

}returnnow.getTime();

}/*** 获取本周周次和日期时间段信息

*

*@return

*/

public staticWeekInfoModel getThisWeekDate() {

WeekInfoModel model= newWeekInfoModel();

SimpleDateFormat df= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//根据今天的时间获取本周属于本月的第几周

Calendar now =Calendar.getInstance();

now.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);//获取本周一的日期

int wom =now.get(Calendar.WEEK_OF_MONTH);

model.setIndexOfWeek(wom);//根据今天的时间获取本周的开始时间

now.set(Calendar.HOUR_OF_DAY, 0);

now.set(Calendar.MINUTE,0);

now.set(Calendar.SECOND,0);

now.set(Calendar.MILLISECOND,0);

System.out.println("********" + now.get(Calendar.YEAR) + "年"

+ ((now.get(Calendar.MONTH)) + 1) + "月第" + wom + "周星期一的日期是："

+df.format(now.getTime()));

model.setStartDateOfWeek(now.getTime());//根据今天的时间获取本周的结束时间

now.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY);

now.add(Calendar.WEEK_OF_YEAR,1);

now.set(Calendar.HOUR_OF_DAY,23);

now.set(Calendar.MINUTE,59);

now.set(Calendar.SECOND,59);

now.set(Calendar.MILLISECOND,999);

System.out.println("********" + now.get(Calendar.YEAR) + "年"

+ ((now.get(Calendar.MONTH)) + 1) + "月第" + wom + "周星期天的日期是："

+df.format(now.getTime()));

model.setEndDateOfWeek(now.getTime());returnmodel;

}

}