Java中日期操作

编程技术  /  houtizong 发布于 3年前   71

package com.zx.common.util;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;public class DateUtil {   private static final String FORMAT="yyyy-MM-dd HH:mm:ss";   public static Date getTime(){Calendar now=Calendar.getInstance();return now.getTime();}public static String formatTime(Date time){SimpleDateFormat sdf=new SimpleDateFormat(FORMAT);return sdf.format(time);}public static String getCurrentTime(){Calendar now=Calendar.getInstance();StringBuffer time=new StringBuffer();time.append(now.get(now.YEAR));time.append(now.get(now.MONTH)+1);time.append(now.get(now.DAY_OF_MONTH));time.append(now.get(now.HOUR));time.append(now.get(now.MINUTE));time.append(now.get(now.SECOND));return time.toString();}/** * 判断是否在发短信的时间范围内(8:00-23:00) (penghuaiyi 2008-12-22) * @return */public static boolean  isSendTime(){boolean flag=false;Calendar current=Calendar.getInstance();int year=current.get(Calendar.YEAR);int month=current.get(Calendar.MONTH);int date=current.get(Calendar.DAY_OF_MONTH);    //设置短信发送开始时间：8:00current.set(year, month, date, BEGIN_TIME,0,0);Date beginTime=current.getTime();//设置短信发送截止时间：23:00current.set(year, month, date, END_TIME,0,0);Date endTime=current.getTime();Date now=new Date();  //当前时间if(now.after(beginTime) && now.before(endTime)){flag=true;}return flag;}public static void main(String args[]){       Date date=DateUtil.getTime();       String time=DateUtil.formatTime(date);       System.out.println(time);              String str=DateUtil.getCurrentTime();       System.out.println(str);}}