public static String getLastDayOfMonth() {
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.DATE, 1);
        cal.add(Calendar.MONTH, 1);
        cal.add(Calendar.DATE, -1);
        return format(DF_DATE, cal.getTime());
    }
public static String getLastDayOfMonth() {
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.DATE, 1);
        cal.add(Calendar.MONTH, 1);
        cal.add(Calendar.DATE, -1);
        return format(DF_DATE, cal.getTime());
    }
public static String getLastDayOfMonth ( ) { Calendar cal = Calendar . getInstance ( ) ; cal . set ( Calendar . DATE , 1 ) ; cal . add ( Calendar . MONTH , 1 ) ; cal . add ( Calendar . DATE , - 1 ) ; return format ( DF_DATE , cal . getTime ( ) ) ; }
获取本月最后一天

@return 本月最后一天
获取本月最后一天