package com.appbox.util.time;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.regex.Pattern;
import org.apache.log4j.Logger;
public class DateTimeUtil {
private static Logger log = Logger.getLogger(DateTimeUtil.class);
/**
*
* @return 当前日期和时间 格式：20110101121212000
*/
public static String getTimeStampStr() {
return getDateTime("yyyyMMddHHmmssSSS");
}
/**
*
* @return 当前日期和时间 格式：2011-01-01 12:12:12
*/
public static String getCurrentDateAndTime() {
return getDateTime("yyyy-MM-dd HH:mm:ss");
}
/**
*
* @return 获取当前日期 格式：2011-01-01
*/
public static String getCurrentDate() {
return getDateTime("yyyy-MM-dd");
}
/**
*
* @return 获取当前时间 格式 12:12:12
*/
public static String getCurrentTime() {
String date = getDateTime("HH:mm:ss");
return date;
}
/**
*
* @return 获取当前时间戳
*/
public static long getTimestamp() {
Date dateNow = new Date();
return dateNow.getTime();
}
/**
* 将时间的string转换为Date类型
* @param str 例2011-01-01 12:12:12
* @return 时间类型对象
*/
public static Date StringToDate(String str){
DateFormat format1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = null;
try {
date = format1.parse(str);
} catch (ParseException e) {
log.error("string 转换date:"+e.getMessage());
e.printStackTrace();
}
return date;
}
public static String getDateTime(String pattern) {
if (null == pattern || "".equals(pattern)) {
pattern = "yyyy-MM-dd HH:mm:ss";
}
SimpleDateFormat sdf = new SimpleDateFormat(pattern);
String dt = sdf.format(new Date());
return dt;
}
/**
* 将时间的Date转换为String类型
* @param date
* @param pattern 指定返回的日期字符串的格式 ,如果没有指定则默认为"yyyy-MM-dd HH:mm:ss"
* @return String 返回为指定pattern格式的字符串
* @exception NullPointerException - 如果给定的模式为 null
* @exception IllegalArgumentException - 如果给定的模式无效
*/
public static String dateToString(Date date,String ...pattern){
String pattern2="yyyy-MM-dd HH:mm:ss";
if(pattern.length>0){
pattern2=pattern[0];
}
DateFormat format1 = new SimpleDateFormat(pattern2);
return format1.format(date);
}
/**
* 生成日期列表,包含开始日期和结束日期
* @param start 开始日期
* @param end 结束日期
* @param pattern 指定返回的日期的格式 ,如果未指定则默认为"yyyy-MM-dd"
* @return 包含开始日期和结束日期的日期列表,包含开始日期和结束日期,返回的日期格式为指定的pattern
*/
@SuppressWarnings("deprecation")
public static List<String> getDateList(Date start,Date end,String ...pattern){
List<String> ret=new ArrayList<String>();
String pattern2="yyyy-MM-dd";
if(pattern.length>0){
pattern2=pattern[0];
}
while(start.compareTo(end)<=0){
ret.add(dateToString(start,pattern2));
start.setDate(start.getDate()+1);
}
return ret;
}
/**
* 将时间的string转换为Date类型,注意本类中的另一个方法与此方法首字母的不同
* @param datestr 例2011-01-01 12:12:12
* @param pattern 指定转换的格式,如果不存在,则默认为yyyy-MM-dd HH:mm:ss
* @return 时间类型对象
*/
public static Date stringToDate(String datestr,String ...pattern){
String pattern2="yyyy-MM-dd HH:mm:ss";
if(pattern.length>0){
pattern2=pattern[0];
}
DateFormat format1 = new SimpleDateFormat(pattern2);
Date date = null;
try {
date = format1.parse(datestr);
} catch (ParseException e) {
log.error("string 转换date:"+e.getMessage());
e.printStackTrace();
}
return date;
}
/**
* 获取上个月的今天
* @return 当前日期和时间 格式：2011-01-01 12:12:12
*/
public static String getLastMonthDateAndTime() {
String year = getDateTime("yyyy");
String month = getDateTime("MM");
if(Integer.parseInt(month) > 1){
month = String.valueOf((Integer.parseInt(month)-1));
if(month.length() == 1){
month = "0" + month;
}
}else{
month = "12";
year = String.valueOf(Integer.parseInt(year)-1);
}
String time = getDateTime("-dd HH:mm:ss");
time = year + "-" + month + time;
return time;
}
/**
* 根据当前时间生成流水号
* @param prefix 例"R"
* @return 当前日期和时间 格式：2011-01-01 12:12:12
*/
public static String getSwiftnumber(String prefix) {
String swiftnumber = prefix;
String date = getCurrentDate();
String[] temp = date.split("-");
swiftnumber += (temp[0] + temp[1] + temp[2]);
return swiftnumber;
}
public static boolean timeMatch(String startdate){
String datereg="(([\\d]{2}(([02468][048])|[13579][26])\\-"// 闰年
+ "((((0[13578])|(1[02]))\\-(([012][\\d])|(3[01])))"
+ "|(((0[469])|(11))\\-(([012][\\d])|30))"
+ "|(02\\-[012][\\d])))" // 月日
+ "|([\\d]{2}(([02468][^0^4^8])|([13579][^2^6]))\\-"// 非闰年
+ "((((0[13578])|(1[02]))\\-(([012][\\d])|(3[01])))"
+ "|(((0[469])|(11))\\-(([012][\\d])|30))"
+ "|(02\\-(([01][\\d])|(2[0-8]))))))";
return Pattern.matches(datereg, startdate);
}
public static String getDateByYearlimited(Integer limitedyear) {
String year = getDateTime("yyyy");
year = String.valueOf((Integer.parseInt(year) + limitedyear));
String date = getDateTime("-mm-dd");
return year + date;
}
public static String getTomorrow() {
String year = getDateTime("yyyy");
String month = getDateTime("MM");
String day = getDateTime("dd");
if("01".equals(month) || "03".equals(month) || "05".equals(month) || "07".equals(month) || "08".equals(month) || "10".equals(month)){
if(Integer.parseInt(day) >= 31){
month = String.valueOf(Integer.parseInt(month) + 1) ;
if(month.length() == 1){
month = "0" + month;
}
day = "01";
}else{
day = String.valueOf(Integer.parseInt(day) + 1);
if(day.length() == 1){
day = "0" + day;
}
}
}else if("04".equals(month) || "06".equals(month) || "09".equals(month) || "11".equals(month)){
if(Integer.parseInt(day) >= 30){
month = String.valueOf(Integer.parseInt(month) + 1) ;
if(month.length() == 1){
month = "0" + month;
}
day = "01";
}else{
day = String.valueOf(Integer.parseInt(day) + 1);
if(day.length() == 1){
day = "0" + day;
}
}
}else if("02".equals(month)){
int intyear = Integer.parseInt(year);
if((intyear % 4 == 0) && (intyear % 100 != 0)||(intyear % 400==0)){
if(Integer.parseInt(day) >= 29){
month = String.valueOf(Integer.parseInt(month) + 1) ;
if(month.length() == 1){
month = "0" + month;
}
day = "01";
}else{
day = String.valueOf(Integer.parseInt(day) + 1);
if(day.length() == 1){
day = "0" + day;
}
}
}else{
if(Integer.parseInt(day) >= 28){
month = String.valueOf(Integer.parseInt(month) + 1) ;
if(month.length() == 1){
month = "0" + month;
}
day = "01";
}else{
day = String.valueOf(Integer.parseInt(day) + 1);
if(day.length() == 1){
day = "0" + day;
}
}
}
}else if("12".equals(month)){
if(Integer.parseInt(day) >= 31){
year = String.valueOf(Integer.parseInt(year) + 1) ;
month = "01";
day = "01";
}else{
day = String.valueOf(Integer.parseInt(day) + 1);
if(day.length() == 1){
day = "0" + day;
}
}
}
String time = getDateTime(" HH:mm:ss");
time = year + "-" + month + "-" + day + time;
return time;
}
/**
* 获得过去几天前或几天后的日期
* @param days 负为几天前, 正为几天后
* @return
*/
public static String getNextDay(Long days) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String dt = sdf.format(new Date(new Date().getTime()+days*1000*3600*24));
return dt;
}
public static String getLastDay() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String dt = sdf.format(new Date(new Date().getTime()-1000*3600*24));
return dt;
}
public static String getNextDay() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String dt = sdf.format(new Date(new Date().getTime() + 1000*3600*24));
return dt;
}
public static Boolean checktime(String time){
if(getTimestamp() - StringToDate(time).getTime() <= 600000 && getTimestamp() - StringToDate(time).getTime() >= -600000){
return true;
}
return false;
}
/**
* 按日历算日期(明天或者昨天）
*
* @param date
* @param field
* @param amount
* @see Calendar#add(int, int)
* @return
*/
public static String dateWalker(String date, int field, int amount) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar cal = Calendar.getInstance();
try {
cal.setTime(sdf.parse(date));
cal.add(field, amount);
String target = sdf.format(cal.getTime());
return target;
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null; // 无法解析输入时间
}
}