日期工具类

Java代码  

import java.sql.Timestamp;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class DateUtil {

    private DateUtil(){}

    private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
    private static final SimpleDateFormat datetimefomat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    private static final SimpleDateFormat timeFormat = new SimpleDateFormat("HH:mm:ss");
    private static Map<String, Integer> dayOfWeeks = new HashMap<String, Integer>();
    private static List<String> dayOfWeekList = new ArrayList<String>();

    static{
        dayOfWeeks.put("一", Calendar.MONDAY);
        dayOfWeeks.put("二", Calendar.TUESDAY);
        dayOfWeeks.put("三", Calendar.WEDNESDAY);
        dayOfWeeks.put("四", Calendar.THURSDAY);
        dayOfWeeks.put("五", Calendar.FRIDAY);
        dayOfWeeks.put("六", Calendar.SATURDAY);
        dayOfWeeks.put("日", Calendar.SUNDAY);

        dayOfWeekList.add("一");
        dayOfWeekList.add("二");
        dayOfWeekList.add("三");
        dayOfWeekList.add("四");
        dayOfWeekList.add("五");
        dayOfWeekList.add("六");
        dayOfWeekList.add("日");
    }

    /**
     * 获取指定日期所的下一周的星期一的日期，格式为yyyy-MM-dd
     * @param date
     * @return
     */
    public static String getNextMondayDate(Date date){
        Calendar calendar = Calendar.getInstance();
        calendar.setFirstDayOfWeek(Calendar.MONDAY);
        calendar.setTime(date);
        calendar.add(Calendar.DAY_OF_MONTH, 7);
        calendar.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
        return sdf.format(calendar.getTime());
    }