获取本周一的日期和本周日的日期

public Map getWeekDate (){

　　Map map = new HashMap();

　　Date date = new Date();

　　Calendar cal = Calendar.getInstance();

　　int dayWeek = cal.get(Calendar.DAY_OF_WEEK)-1;

　　if(dayWeek==0){

　　　　dayWeek = 7;

　　}

　　calendar.add(Calendar.DATE , cal.getFirstDayOfWeek()-dayWeek);

　　SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

　　String mondayDate = sdf.format(cal.gettime());

　　map.put("mondayDate",mondayDate);

　　calendar.add(Calendar.DATE , 6);

　　String sundayDate = sdf.format(cal.gettime());

　　map.put("sundayDate",sundayDate);

}