自动加载下拉列表年月周

Posted 2023-02-23 八月长安个人专栏

public class Utils 

	/**
	 * 得到下拉的年份
	 * 
	 * @return
	 */
	public static Map<String, Object> getSelectYear() 
		Map<String, Object> defaultYear = new LinkedHashMap<String, Object>();
		defaultYear.put("2014", 2014);
		defaultYear.put("2015", 2015);
		defaultYear.put("2016", 2016);
		int nowYear = Calendar.getInstance().get(Calendar.YEAR);// 获取当前年
		if (nowYear <= 2016) 
			return defaultYear;
		 else 
			for (int i = 1; i <= nowYear - 2016; i++) 
				defaultYear.put(2016 + i + "", 2016 + i);
			
		
		return defaultYear;
	

	/**
	 * 获取下拉的月份
	 * 
	 * @return
	 */
	public static Map<String, Object> getSelectMonth() 
		Map<String, Object> month = new LinkedHashMap<String, Object>();
		for (int i = 1; i <= 12; i++) 
			month.put(i + "", i);
		
		return month;
	

	/**
	 * 获取下拉的周. <br/>
	 *
	 * @return
	 */
	public static Map<String, Object> getSelectWeek(int year,int month) 
		Calendar now = Calendar.getInstance();
		now.set(Calendar.YEAR, year);
		now.set(Calendar.MONTH, month-1);
		Map<String, Object> defaultWeek = new LinkedHashMap<String, Object>();
		defaultWeek.put("1", "第1周");
		defaultWeek.put("2", "第2周");
		defaultWeek.put("3", "第3周");
		defaultWeek.put("4", "第4周");
		int zhou = now.getActualMaximum(Calendar.WEEK_OF_MONTH);
		if (zhou <= 4) 
			return defaultWeek;
		 else 
			for (int i = 1; i <= zhou - 4; i++) 
				defaultWeek.put((4 + i)+"", "第" + (4 + i) + "周");
			
		
		System.out.println(defaultWeek);
		return defaultWeek;