轉(zhuǎn)載：http://www.itdecent.cn/p/b3bdd6c34e66

/**

? ? * 獲取指定日期所在周的周一

? ? *

? ? * @param date? ? ? 日期

? ? */publicstaticDategetFirstDayOfWeek(Datedate){Calendarc=Calendar.getInstance();c.setTime(date);if(c.get(Calendar.DAY_OF_WEEK)==1){c.add(Calendar.DAY_OF_MONTH,-1);}c.add(Calendar.DATE,c.getFirstDayOfWeek()-c.get(Calendar.DAY_OF_WEEK)+1);returnc.getTime();}

/**

? ? * 獲取指定日期所在周的周日

? ? *

? ? * @param date? ? ? 日期

? ? */publicstaticDategetLastDayOfWeek(Datedate){Calendarc=Calendar.getInstance();c.setTime(date);// 如果是周日直接返回if(c.get(Calendar.DAY_OF_WEEK)==1){returndate;}System.out.println(c.get(Calendar.DAY_OF_WEEK));c.add(Calendar.DATE,7-c.get(Calendar.DAY_OF_WEEK)+1);returnc.getTime();}