import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import org.apache.commons.lang.StringUtils;
import org.joda.time.DateTime;
import org.joda.time.LocalDate;
import org.joda.time.format.DateTimeFormat;
/**
* @author Simon Lv
* @since 2012-6-10
*/
public class DateUtils {
public static final String YYMMDD = "yyMMdd";
public static final String YYYYMMDD = "yyyyMMdd";
public static final String PATTERN_DATETIME = "yyyy-MM-dd HH:mm:ss";
public static final String PATTERN_DATETIME_M = "yyyy-MM-dd HH:mm";
public static final String PATTERN_DATE = "yyyy-MM-dd";
public static final String PATTERN_MONTH = "yyyy-MM";
public static final String YEAR = "yyyy";
public static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat(
"yyyy-MM-dd hh:mm:ss");
public static DateTime toDateTime(String dateTime) {
if (StringUtils.isBlank(dateTime)) {
return null;
}
return DateTimeFormat.forPattern(PATTERN_DATETIME).parseDateTime(dateTime);
}
public static DateTime strToDateTime(String dateTime) {
if (StringUtils.isBlank(dateTime)) {
return null;
}
return DateTimeFormat.forPattern(PATTERN_DATE).parseDateTime(dateTime);
}
public static String toString(DateTime dateTime) {
return dateTime.toString(PATTERN_DATETIME);
}
public static String dateToString(DateTime dateTime) {
return dateTime.toString(YEAR);
}
public static String dateTimeToString(DateTime dateTime) {
return dateTime.toString(PATTERN_DATE);
}
public static String toString(String dateTime, String pattern) {
return new DateTime(dateTime).toString(pattern);
}
public static String toString(LocalDate localDate, String pattern) {
if (localDate == null) {
return null;
}
return localDate.toString(pattern);
}
public static String todayToString() {
return new LocalDate().toString(YYMMDD);
}
public static String todayToStringYear() {
return new LocalDate().toString(YEAR);
}
public static String todayToString2() {
return new LocalDate().toString(YYYYMMDD);
}
public static String todayToYYYYMMDDStr() {
return new LocalDate().toString(PATTERN_DATE);
}
public static String todayToChinaStr() {
Calendar calendar =Calendar.getInstance();
StringBuffer sb = new StringBuffer();
sb.append(calendar.get(Calendar.YEAR)).append("年")
.append(calendar.get(Calendar.MONTH)+1).append("月")
.append(calendar.get(Calendar.DAY_OF_MONTH)).append("日")
.append(calendar.get(Calendar.HOUR)).append("时")
.append(calendar.get(Calendar.MINUTE)).append("分");
return sb.toString();
}
/**
* 将微信消息中的CreateTime转换成标准格式的时间（yyyy-MM-dd HH:mm:ss）
*
* @param createTime
* @return
*/
public static String getNormalDateFromWebChat(String createTime) {
Long msgCreateTime = Long.parseLong(createTime) * 1000;
return DATE_FORMAT.format(new Date(msgCreateTime));
}
/**
* 将long型时间格式转换为字符格式
*
* @return 返回字符串格式 yyyy-MM-dd HH:mm:ss
*/
public static String long2LongString(long date){
if(date == -99){
return "-";
}
SimpleDateFormat sdf = new SimpleDateFormat(PATTERN_DATETIME);
return sdf.format(new Date(date));
}
public static String long2DateString(Long date, String pattern){
if(date == null || date.longValue() ==0){
return "-";
}
if(date.longValue() == -99){
return "";
}
SimpleDateFormat sdf = new SimpleDateFormat(pattern);
return sdf.format(new Date(date));
}
/**
* 将long型时间格式转换为字符格式
*
* @return 返回字符串格式 yyyy-MM-dd HH:mm
*/
public static String long2DatemString(long date){
if(date == -99){
return "-";
}
SimpleDateFormat sdf = new SimpleDateFormat(PATTERN_DATETIME_M);
return sdf.format(new Date(date));
}
/**
* 将long型时间格式转换为字符格式
*
* @param date
* @return 返回字符串格式 yyyy-MM-dd
*/
public static String long2String(Long date){
if(null == date || date == -99 || date == 0){
return "-";
}
SimpleDateFormat sdf = new SimpleDateFormat(PATTERN_DATE);
return sdf.format(new Date(date));
}
/***
* YYYY-MM-DD
* @param dateTime
* @return
*/
public static long str2Long(String dateTime){
if (StringUtils.isBlank(dateTime)) {
return 0l;
}
Date date = string2Date(dateTime);
return date.getTime();
}
/**
* yyyy-MM-dd HH:mm:ss
* @param dateTime
* @return
*/
public static long strSLong(String dateTime){
if (StringUtils.isBlank(dateTime)) {
return 0l;
}
Date date = string2Datetime(dateTime);
return date.getTime();
}
/**
* 将DateTime型时间格式转换为long
*
* @param date
* @return
*/
public static long date2Long(DateTime dateTime){
if (dateTime == null) {
return 0l;
}
String date1 = dateTimeToString(dateTime);
Date date = string2Date(date1);
return date.getTime();
}
/**
* 获得精确到秒的日期类型
* yyyy-MM-dd HH:mm:ss
* @param date
* @return
*/
public static Date string2Datetime(String date) {
Date retValue = null ;
SimpleDateFormat sdf= new SimpleDateFormat(PATTERN_DATETIME);
try{
retValue = sdf.parse(date);
}catch(Exception e){
e.printStackTrace();
}
return retValue;
}
/**
* 获得日期类型
*
* @param date
* @return
*/
public static Date string2Date(String date) {
Date retValue = null ;
SimpleDateFormat sdf= new SimpleDateFormat(PATTERN_DATE);
try{
retValue = sdf.parse(date);
}catch(Exception e){
e.printStackTrace();
}
return retValue;
}
/**
* 日期转换为Long
*
* @param dateTime
* @return
*/
public static long str2MonthLong(String dateTime){
if (StringUtils.isEmpty(dateTime)) {
return 0l;
}
Date date = string2MonthDate(dateTime);
return date != null ? date.getTime() : 0l;
}
/**
* 获得月份类型
*
* @param date
* @return
*/
public static Date string2MonthDate(String date) {
Date retValue = null ;
SimpleDateFormat sdf= new SimpleDateFormat(PATTERN_MONTH);
try{
retValue = sdf.parse(date);
}catch(Exception e){
e.printStackTrace();
}
return retValue;
}
/***
* YYYY-MM-DD
* @param date
* @return
*/
public static int getDayOfWeek(String date){
String[] dateArr = date.split("-");
int year = Integer.parseInt(dateArr[0]);
int month = Integer.parseInt(dateArr[1]);
int day= Integer.parseInt(dateArr[2]);
Calendar calendar = Calendar.getInstance();//获得一个日历
calendar.set(year, month-1, day);//设置当前时间,月份是从0月开始计算
int number = calendar.get(Calendar.DAY_OF_WEEK);//星期表示1-7，是从星期日开始，
return number;
}
/**
* 获取指定日期一年前时间
*
* @return 返回long格式
*/
public static long getChainYear(long date){
Calendar cal = Calendar.getInstance();
cal.setTime(new Date(date));
cal.add(Calendar.YEAR,-1);
return cal.getTime().getTime();
}
/***
* 时间差，分钟
* @param startTime
* @param endTime
* @return
*/
public static String timeDifference(long startTime,long endTime ){
long timeDifferenceSecond = endTime - startTime;
double dmin = ((double)timeDifferenceSecond/(60*1000));
BigDecimal bd = BigDecimal.valueOf(dmin);
DecimalFormat df = new DecimalFormat("0");
df.setRoundingMode(RoundingMode.HALF_UP);
return df.format(bd);
}
public static Date getTimesWeekMoningDate(int h,int m,int s){
Calendar cal = Calendar.getInstance();
int year = cal.get(Calendar.YEAR);
int monday = cal.get(Calendar.MONDAY);
int dayOfMonth = cal.get(Calendar.DAY_OF_MONTH);
cal.set(year, monday,dayOfMonth, h, m, s);
cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
return cal.getTime();
}
/**
* 本周开始时间 yyyy-MM-dd HH:mm:ss 0点
* @return
*/
public static String getTimesWeekMorning() {
SimpleDateFormat formatter = new SimpleDateFormat(PATTERN_DATETIME);
String dateString = formatter.format(getTimesWeekMoningDate(0,0,0));
return dateString;
}
/**
* 本周结束时间 yyyy-MM-dd HH:mm:ss 24点
* @return
*/
public static String getTimesWeekNight() {
Calendar cal = Calendar.getInstance();
cal.setTime(getTimesWeekMoningDate(0,0,0));
cal.add(Calendar.DAY_OF_WEEK, 7);
SimpleDateFormat formatter = new SimpleDateFormat(PATTERN_DATETIME);
String dateString = formatter.format(cal.getTime());
return dateString;
}
/***
* 本月开始时间0点
* @return
*/
public static String getTimesMonthMorning() {
Calendar cal = Calendar.getInstance();
cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
cal.set(Calendar.DAY_OF_MONTH, cal.getActualMinimum(Calendar.DAY_OF_MONTH));
SimpleDateFormat formatter = new SimpleDateFormat(PATTERN_DATETIME);
String dateString = formatter.format(cal.getTime());
return dateString;
}
/***
* 本月结束时间24点
* @return
*/
public static String getTimesMonthNight() {
Calendar cal = Calendar.getInstance();
int year = cal.get(Calendar.YEAR);
int monday = cal.get(Calendar.MONDAY);
int dayOfMonth = cal.get(Calendar.DAY_OF_MONTH);
cal.set(year, monday,dayOfMonth, 0, 0, 0);
cal.set(Calendar.DAY_OF_MONTH, cal.getActualMaximum(Calendar.DAY_OF_MONTH));
cal.set(Calendar.HOUR_OF_DAY, 24);
SimpleDateFormat formatter = new SimpleDateFormat(PATTERN_DATETIME);
String dateString = formatter.format(cal.getTime());
return dateString;
}
}
