first commit

src/main/java/lingtao/net/util/DateFormatUtils.java

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+package lingtao.net.util;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.Calendar;
+import java.util.Date;
+
+import org.apache.commons.lang.StringUtils;
+
+public class DateFormatUtils {
+
+	// 开始日期
+	public String formatBeginTime(String add_time_begin) {
+		// 按日期范围统计
+		if (add_time_begin.length() > 20 && !add_time_begin.contains("~")) {
+			return add_time_begin.substring(0, 10);
+		}
+		// 按周统计
+		if (add_time_begin.contains("~")) {
+			String[] dates = add_time_begin.split("~");
+			return dates[0];
+		} // 按月统计
+		else if (add_time_begin.length() == 7) {
+			return add_time_begin + "-01";
+		} // 按季度统计
+		else if (add_time_begin.length() == 6) {
+			String subYear = add_time_begin.substring(0, 4);
+			if (add_time_begin.contains("-1")) {
+				return subYear + "-01-01";
+			} else if (add_time_begin.contains("-2")) {
+				return subYear + "-04-01";
+			} else if (add_time_begin.contains("-3")) {
+				return subYear + "-07-01";
+			} else {
+				return subYear + "-10-01";
+			}
+		} // 按年统计
+		else if (add_time_begin.length() == 4) {
+			return add_time_begin + "-01-01";
+		} else { // 按日统计
+			return add_time_begin;
+		}
+
+	}
+
+	// 结束日期
+	public String formatEndTime(String add_time_begin) {
+		// 按日期范围统计
+		if (add_time_begin.length() > 20 && !add_time_begin.contains("~")) {
+			return add_time_begin.substring(13) + " 23:59:59";
+		}
+		// 按周统计
+		if (add_time_begin.contains("~")) {
+			String[] dates = add_time_begin.split("~");
+			return dates[1];
+		}
+		// 按月统计
+		else if (add_time_begin.length() == 7) {
+			return add_time_begin + "-31";
+		}
+		// 按季度统计
+		else if (add_time_begin.length() == 6) {
+			String subYear = add_time_begin.substring(0, 4);
+			if (add_time_begin.contains("-1")) {
+				return subYear + "-03-31";
+			} else if (add_time_begin.contains("-2")) {
+				return subYear + "-06-30";
+			} else if (add_time_begin.contains("-3")) {
+				return subYear + "-09-30";
+			} else {
+				return subYear + "-12-31";
+			}
+		}
+		// 按年统计
+		else if (add_time_begin.length() == 4) {
+			return add_time_begin + "-12-31";
+		} else {// 按日统计
+			if (StringUtils.isEmpty(add_time_begin))
+				return add_time_begin;
+			return add_time_begin + " 23:59:59";
+		}
+	}
+
+	/**
+	 * 计算俩个日期间隔的时间
+	 * 
+	 * @param date1
+	 * @param date2
+	 * @return
+	 */
+	public static long getSubtractiveDays(Date date1, Date date2) {
+		long nano = (Date
+				.from(LocalDateTime.ofInstant(date2.toInstant(), ZoneId.systemDefault()).atZone(ZoneId.systemDefault())
+						.withHour(0).withMinute(0).withSecond(0).withNano(0).toInstant())
+				.getTime()
+				- Date.from(LocalDateTime.ofInstant(date1.toInstant(), ZoneId.systemDefault())
+						.atZone(ZoneId.systemDefault()).withHour(0).withMinute(0).withSecond(0).withNano(0).toInstant())
+						.getTime());
+		return nano / (1000 * 3600 * 24);
+	}
+
+	/**
+	 * 计算俩个日期间隔的时间
+	 * 
+	 * @param date1
+	 * @param date2
+	 * @return
+	 */
+	public static int getDay(Date date1, Date date2) {
+		Calendar cal = Calendar.getInstance();
+		cal.setTime(date1);
+		long time1 = cal.getTimeInMillis();
+		cal.setTime(date2);
+		long time2 = cal.getTimeInMillis();
+		long between_days = (time2 - time1) / (1000 * 3600 * 24);
+		return Integer.parseInt(String.valueOf(between_days));
+	}
+
+	/**
+	 * 计算俩个日期间隔的时间
+	 * 
+	 * @param date1
+	 * @param date2
+	 * @return
+	 */
+	public static String getDatePoor(Date endDate, Date nowDate) {
+
+		long nd = 1000 * 24 * 60 * 60;// 每天毫秒数
+
+		long nh = 1000 * 60 * 60;// 每小时毫秒数
+
+		long nm = 1000 * 60;// 每分钟毫秒数
+
+		long diff = endDate.getTime() - nowDate.getTime(); // 获得两个时间的毫秒时间差异
+
+		long day = diff / nd; // 计算差多少天
+
+		long hour = diff % nd / nh; // 计算差多少小时
+
+		long min = diff % nd % nh / nm; // 计算差多少分钟
+
+		return day + "天" + hour + "小时" + min + "分钟";
+	}
+
+	/**
+	 * 计算俩个日期间隔的时间
+	 * 
+	 * @param date1 字符串日期
+	 * @param date2 字符串日期
+	 * @return
+	 * @throws ParseException
+	 */
+	public static String getDay(String date1, String date2) throws ParseException {
+		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+		Date d1 = sdf.parse(date1);
+		Date d2 = sdf.parse(date2);
+
+		long daysBetween = (long) ((d1.getTime() - d2.getTime()) / (60 * 60 * 24 * 1000));
+		System.out.println(date1 + " 与 " + date2 + "间隔 " + daysBetween + " 天");
+		return date1 + " 与 " + date2 + "间隔 " + daysBetween + " 天";
+	}
+}