package com.espeed.yxy.tool;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
/**
* 程序名称: EspeedMail_时速邮箱
* 程序版本: V1.0
* 作 者: 深圳市科飞时速网络技术有限公司(0755-88843776)
* 版权所有: 深圳市科飞时速网络技术有限公司
* 技术支持: Tech@21gmail.com
* 单元名称: 日期转换工具类(营销游)
* 开始时间: 2013.12.09
* 程 序 员: 谢勇
* 最后修改:
* 备 注: 如需修改请通知程序员
*/
public class DateFormat {
private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日");
private static SimpleDateFormat sdf2 = new SimpleDateFormat(
"yyyy-MM-dd hh:mm:ss");
/**将字符串转换日期*/
public static Date dateToString(String str) {
Date dateNum = null;
try {
dateNum = sdf.parse(str);
} catch (ParseException e) {
e.printStackTrace();
}
return dateNum;
}
/** 将字符串转换日期*/
public static Date dateToString2(String str) {
Date dateNum = null;
try {
dateNum = sdf2.parse(str);
} catch (ParseException e) {
e.printStackTrace();
}
return dateNum;
}
/** 将日期转换为字符串*/
public static String simpleDataFormat(Date date) {//yy必须小写，MM是月份，mm是分；HH是24小时制，而hh是12小时制*/
String str = sdf.format(date);
return str;
}
/**给定一个日期型字符串，返回加减n天后的日期型字符串*/
public static String nDaysAfterOneDateString(String basicDate, int n) {
Date tmpDate = null;
try {
tmpDate = sdf2.parse(basicDate);
System.out.println(tmpDate);
} catch (Exception e) {
//日期型字符串格式错误
}
long nDay = (tmpDate.getTime() / (24 * 60 * 60 * 1000) + 1 + n)* (24 * 60 * 60 * 1000);
tmpDate.setTime(nDay);
return sdf2.format(tmpDate);
}
/**给定一个日期，返回加减n天后的日期*/
public static Date nDaysAfterOneDate(Date basicDate, int n) {
long nDay = (basicDate.getTime() / (24 * 60 * 60 * 1000) + 1 + n)
* (24 * 60 * 60 * 1000);
basicDate.setTime(nDay);
return basicDate;
}
/**判断日期为星期几,0为星期天,依此类推*/
public static String dayOfWeek(String strdate) {
SimpleDateFormat df = new SimpleDateFormat("yyyy年MM月dd日");
Date date = null;
try {
date = df.parse(strdate);
} catch (ParseException e) {
System.out.println("字符型转日期有异常");
}
//首先定义一个calendar，必须使用getInstance()进行实例化
Calendar aCalendar = Calendar.getInstance();
//里面野可以直接插入date类型
aCalendar.setTime(date);
//计算此日期是一周中的哪一天
int x = aCalendar.get(Calendar.DAY_OF_WEEK) - 1;
String week = "";
switch (x) {
case 0:
week = "星期天";
break;
case 1:
week = "星期一";
break;
case 2:
week = "星期二";
break;
case 3:
week = "星期三";
break;
case 4:
week = "星期四";
break;
case 5:
week = "星期五";
break;
case 6:
week = "星期六";
break;
}
return week;
}
/**判断日期为星期几,0为星期天,依此类推*/
public static int dayOfWeekNum(String strdate) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
Date date = null;
try {
date = df.parse(strdate);
} catch (ParseException e) {
System.out.println("字符型转日期有异常");
}
//首先定义一个calendar，必须使用getInstance()进行实例化
Calendar aCalendar = Calendar.getInstance();
//里面野可以直接插入date类型
aCalendar.setTime(date);
//计算此日期是一周中的哪一天
int x = aCalendar.get(Calendar.DAY_OF_WEEK) - 1;
int week = 0;
switch (x) {
case 0:
week = 7;
break;
case 1:
week = 1;
break;
case 2:
week = 2;
break;
case 3:
week = 3;
break;
case 4:
week = 4;
break;
case 5:
week = 5;
break;
case 6:
week = 6;
break;
}
return week;
}
/** 计算两个日期相隔的天数*/
public static int nDaysBetweenTwoDate(Date firstDate, Date secondDate) {
int nDay = (int) ((secondDate.getTime() - firstDate.getTime()) / (24 * 60 * 60 * 1000));
return nDay;
}
/**计算两个日期相隔的天数*/
public static int nDaysBetweenTwoDate(String firstString, String secondString) {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
Date firstDate = null;
Date secondDate = null;
try {
firstDate = df.parse(firstString);
secondDate = df.parse(secondString);
} catch (Exception e) {
//日期型字符串格式错误
}
int nDay = (int) ((secondDate.getTime() - firstDate.getTime()) / (24 * 60 * 60 * 1000));
System.out.println("相差"+nDay+"天");
return nDay;
}
/** 某年某月有多少天*/
public static int yearMonthDay(int year, int month) {
int day = 0;
if (((month >= 1) && (month <= 12)) && (year >= 0)) {
if (month == 2) {
if ((((year % 4) == 0) && ((year % 100) != 0))|| ((year % 400) == 0))
day = 29;
else
day = 28;
} else {
if ((month == 1) || (month == 3) || (month == 5)
|| (month == 7) || (month == 8) || (month == 10)
|| (month == 12))
day = 31;
else
day = 30;
}
System.out.println(year + "年" + month + "月的天数为：" + day);
} else {
System.out.println("请输入正确的年月！");
}
return day;
}
/**判断两时间相差的分钟数*/
public static long minute1s(String beginDate,String endDate){
Date begin = null;
Date end = null;
SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
long minute1=0;
try {
begin = dfs.parse(beginDate);
end = dfs.parse(endDate);
long between = (end.getTime() - begin.getTime()) / 1000;//除以1000是为了转换成秒
minute1 = between / 60;
} catch (Exception e) {
e.printStackTrace();
}
return minute1;
}
/**判断两时间相差的分钟数*/
public static boolean isthisTimer(String nowTimer){
int hour=Integer.parseInt(nowTimer.split(":")[0]);
int minute=Integer.parseInt(nowTimer.split(":")[1]);
System.out.println(nowTimer);
System.out.println(hour);
System.out.println(minute);
if(hour==23||hour==0){
if(hour==23&&minute>=30||hour==0&&minute<=30){
return true;
}else{
return false;
}
}else{
return false;
}
}
//获取当前时间加减后的日期
public static String lastDays(int n){
String resultdate="";
try {
//获取几天之前的时间
SimpleDateFormat formatDate = new SimpleDateFormat("yyyy-MM-dd"); //字符串转换
Calendar c = Calendar.getInstance();
c.setTimeInMillis(new Date().getTime());
c.add(Calendar.DATE, n);//多少天后的日期
Date date= new Date(c.getTimeInMillis()); //将c转换成Date
resultdate=formatDate.format(date);
} catch (Exception e) {
resultdate="";
e.printStackTrace();
}
return resultdate;
}
public static void main(String[] args) {
try {
SimpleDateFormat df=new SimpleDateFormat("yyyy-MM-dd");
String nowdate=df.format(new Date());
System.out.println(minute1s("2016-10-10 10:10:00","2016-10-10 10:20:00"));
} catch (Exception e) {
e.printStackTrace();
}
}
}