lunzi

package date.test;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Iterator;
import java.util.List;

public class WeekUtil {
	public String getWeek() {
		final String dayNames[] = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五",
				"星期六" };
		SimpleDateFormat sdfInput = new SimpleDateFormat("yyyy-MM-dd HH:mm");
		//SimpleDateFormat 是一个以与语言环境相关的方式来格式化和分析日期的具体类。它允许进行格式化（日期 -> 文本）、分析（文本 -> 日期）和规范化。
		Calendar calendar = Calendar.getInstance();
		Date date = new Date();
		try {
			date = sdfInput.parse(sdfInput.format(date));
		} catch (ParseException ex) {
		}
		calendar.setTime(date);
		int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK);//get 和 set 的字段数字，指示一个星期中的某天。
		System.out.println("dayOfWeek:"+dayOfWeek);
		return dayNames[dayOfWeek - 1];
	}

	public String getWeek(Date date) {
		SimpleDateFormat df = new SimpleDateFormat("yyyy");
		String year = df.format(date);//将一个 Date 格式化为日期/时间字符串。
		System.out.println("year:"+year);
		df = new SimpleDateFormat("MM");
		String month = df.format(date);
		System.out.println("month:"+month);
		Calendar c = new GregorianCalendar();
		c.setFirstDayOfWeek(Calendar.MONDAY);
		// 设置一星期的第一天是哪一天；例如，在美国，这一天是 SUNDAY，而在法国，这一天是 MONDAY。
		c.setTime(date);
		//使用给定的 Date 设置此 Calendar 的时间。
		int week = c.get(Calendar.WEEK_OF_YEAR);
		//get 和 set 的字段数字，指示当前年中的星期数。
		System.out.println("week:"+week);
		
		if (week == 1 && month.equals("12")) {
			year = new Integer(year) + 1 + "";
		}
		if (week > 9) {
			return year + week;
		} else {
			return year + "0" + week;
		}
	}

	public Date addDate(Date date, int field, int amount) {
		GregorianCalendar gc = new GregorianCalendar();
		gc.setTime(date);
		gc.add(field, amount);
		return gc.getTime();
	}
	
	 public List applyCard()
	    {
	        List list = new ArrayList();
	        List tr = null;
	        List card = new ArrayList();
	        card.add(new AwardCardModel("951110301716"));
	        card.add(new AwardCardModel("951110301717"));
	        card.add(new AwardCardModel("951110301718"));
	        card.add(new AwardCardModel("951110301719"));
	        card.add(new AwardCardModel("951110301720"));
	        card.add(new AwardCardModel("9511103017121"));
	        card.add(new AwardCardModel("9511103017122"));
	        card.add(new AwardCardModel("9511103017123"));
	        card.add(new AwardCardModel("9511103017124"));
	        card.add(new AwardCardModel("9511103017125"));
	        card.add(new AwardCardModel("9511103017126"));
	        card.add(new AwardCardModel("9511103017196"));
	        card.add(new AwardCardModel("95111030172277"));
	        card.add(new AwardCardModel("95111030171228"));
	        card.add(new AwardCardModel("95111030171229"));
	        card.add(new AwardCardModel("95111030171231"));
	        
	        Iterator i = card.iterator();
	        
	        AwardCardModel model = null;
	        int j = 1;
	        int size = 1;
	        while(i.hasNext())
	        {
	            model = (AwardCardModel)i.next();
	            if (j == 1)
	            {
	                tr = new ArrayList();
	            }
	            tr.add(model);
	            if (j==5 || size == card.size())
	            {
	                list.add(tr);
	            }
	            if (j==5)
	            {
	                j = 1;
	            }
	            else
	            {
	                j++;
	            }
	            size ++ ;
	        }
	        return list;
	    }
}