dateutil.java

简单的j2ee轻量级框架

package com.prinice.jfoot.util.DataUtil;

/**
 * @author:Leo
 * @version:1.0
 * @description:日期处理
 * @date:2008-2-20
 */
import java.util.*;
import java.text.*;

public class DateUtil {
	
	/*
	 * @description:返回两个日期的天数差
	 */
	public static long getIntervalDays(String day1, String day2){
		SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");
		try{
			Date day1D= myFormatter.parse(day1);
			Date day2D= myFormatter.parse(day2);
			long intervalDays = (day1D.getTime()-day2D.getTime())/(24*60*60*1000);
			return intervalDays;
		}catch(Exception e){
			e.printStackTrace();
			System.out.println("计算天数差异常！");
			return -1000000;
		}	
	}
}