/***

* 获取本周的第一天和最后一天：

*/

public static String getFirstDayAndLastDayOfDay() {

StringBuffer stringBuffer=new StringBuffer();

SimpleDateFormat dateFormater = new SimpleDateFormat(

"yyyy-MM-dd");

Calendar cal = Calendar.getInstance();

cal.set(Calendar.DAY_OF_WEEK, 1);

cal.getTime();

stringBuffer.append(dateFormater.format(cal.getTime()) + "");

cal.set(Calendar.DAY_OF_WEEK,

cal.getActualMaximum(Calendar.DAY_OF_WEEK));

stringBuffer.append("-"+dateFormater.format(cal.getTime()));

return stringBuffer.toString();

}

/**

* 获取本月的第一天和最后一天：

* @return

*/

public static String getFirstDayAndLastDayOfMonth() {

StringBuffer stringBuffer=new StringBuffer();

SimpleDateFormat dateFormater = new SimpleDateFormat(

"MM-dd");

Calendar cal = Calendar.getInstance();

cal.set(Calendar.DAY_OF_MONTH, 1);

cal.getTime();

stringBuffer.append(dateFormater.format(cal.getTime()) + "");

cal.set(Calendar.DAY_OF_MONTH,

cal.getActualMaximum(Calendar.DAY_OF_MONTH));

stringBuffer.append("-"+dateFormater.format(cal.getTime()));

return stringBuffer.toString();

}

/**

* 获取本年的第一天和最后一天：

*

* @return

*/

public static String getFirstDayAndLastDayOfYear() {

StringBuffer stringBuffer=new StringBuffer();

SimpleDateFormat dateFormater = new SimpleDateFormat(

"yyyy-MM-dd");

Calendar cal = Calendar.getInstance();

cal.set(Calendar.DAY_OF_YEAR, 1);

cal.getTime();

stringBuffer.append(dateFormater.format(cal.getTime()) + "");

cal.set(Calendar.DAY_OF_YEAR,

cal.getActualMaximum(Calendar.DAY_OF_YEAR));

stringBuffer.append("-"+dateFormater.format(cal.getTime()));

return stringBuffer.toString();

}