package com.qxueyou.scc.base.util;
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/**
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* 记录项目管理部分核心的数据库字典信息；基础操作Form
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*
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* @author 邓志永
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* @since JDK1.6
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* @history 2014-11-28 邓志永 新建
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*/
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import java.sql.Timestamp;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.Locale;
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import org.apache.commons.lang3.StringUtils;
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public class DateUtils {
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/**
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* 根据格式获得日期字符串
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*
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* @param sFormat
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* @return
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*/
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public String getDateStr(String sFormat) {
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Calendar tCal = Calendar.getInstance();
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Timestamp ts = new Timestamp(tCal.getTime().getTime());
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java.util.Date date = new java.util.Date(ts.getTime());
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SimpleDateFormat formatter = new SimpleDateFormat(sFormat, Locale.CHINA);
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return formatter.format(date);
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}
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/**
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* 根据给定格式获取特定时间的格式化显示
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*
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* @param ts
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* @param sFormat
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* @return
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*/
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public String getDateFormat(Timestamp ts, String sFormat) {
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Date date = new Date(ts.getTime());
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SimpleDateFormat formatter = new SimpleDateFormat(sFormat, Locale.CHINA);
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return formatter.format(date);
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}
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/**
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* 格式化日期
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*
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* @param ts
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* @return
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*/
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public String getSDate(Timestamp ts) {
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Date date = new Date(ts.getTime());
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SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd", Locale.CHINA);
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return formatter.format(date);
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}
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/**
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* 将String类型的日期转换为时间
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*
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* @param dt
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* @return
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*/
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public Timestamp getTs(String dt) {
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Date date = java.sql.Date.valueOf(dt);
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Calendar tCal = Calendar.getInstance();
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tCal.setTime(date);
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return new Timestamp(tCal.getTime().getTime());
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}
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/**
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* 建议获得短日期的处理方式 例如: getShortDate(2004-10-10 10:10:10.123) = 2004-10-10
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*
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* @param dt
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* @return
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*/
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public String getShortDate(String dt) {
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try {
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return dt.substring(0, dt.indexOf(' '));
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} catch (Exception e) {
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return dt;
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}
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}
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/**
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* 取得当前日期时间
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*
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* @return
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*/
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public Timestamp getCurrDateTime() {
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Calendar tCal = Calendar.getInstance();
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return new Timestamp(tCal.getTime().getTime());
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}
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/**
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* 取得当前日期时间 毫秒为0
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*
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* @return
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*/
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public static Timestamp getCurrTime() {
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Calendar tCal = Calendar.getInstance();
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tCal.set(Calendar.MILLISECOND, 0);
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return new Timestamp(tCal.getTime().getTime());
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}
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/**
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* 获得最常见的日期格式内容 : 年-月-日 小时-分钟-秒
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*
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* @param ts
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* @return
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*/
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public String getSDateTime(Timestamp ts) {
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return getDateFormat(ts, "yyyy-MM-dd HH:mm:ss");
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}
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/* 格式化日期 */
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public String getSTime(Timestamp ts) {
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return getDateFormat(ts, "HH:mm:ss");
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}
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/**
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* 获取当天的日期
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*
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* @return
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*/
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public final static String getToday() {
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java.sql.Timestamp ts = new java.sql.Timestamp(System.currentTimeMillis());
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SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd", Locale.CHINA);
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return formatter.format(ts);
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}
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// 根据时间获得随机数
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public String getRnd() {
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Calendar tCal = Calendar.getInstance();
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Timestamp ts = new Timestamp(tCal.getTime().getTime());
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java.util.Date date = new java.util.Date(ts.getTime());
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SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddhhmmss", Locale.CHINA);
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String tmpStr = formatter.format(date) + Math.round(Math.random() * 1000 + 1);
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return tmpStr;
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}
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/**
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* 计算日期之间的差值 2004-3-25 增加
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*
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* @param dt1
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* @param dt2
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* @return
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*/
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public int dateDiff(Timestamp dt1, Timestamp dt2) {
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long ldate1 = dt1.getTime();
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long ldate2 = dt2.getTime();
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return (int) ((ldate2 - ldate1) / (1000 * 60 * 60 * 24));
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}
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/**
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* 计算分钟
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*
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* @param dt1
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* @param dt2
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* @return
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*/
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public int minuteDiff(Timestamp dt1, Timestamp dt2) {
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long ldate1 = dt1.getTime();
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long ldate2 = dt2.getTime();
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return (int) ((ldate2 - ldate1) / (1000 * 60));
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}
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/**
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* 获取明天的日期
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*
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* @return
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*/
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public String getTomorrow() {
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return getNextDay(getToday());
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}
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/**
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* 获得当前日期的下一天
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*
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* @param date
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* @return
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*/
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public String getNextDay(String date) {
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if (StringUtils.isBlank(date)) {
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return "";
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}
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SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd", Locale.CHINA);
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Calendar calendar = Calendar.getInstance();
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try {
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calendar.setTime(f.parse(date));
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} catch (ParseException ex) {
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return date;
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}
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calendar.add(5, 1);
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return f.format(calendar.getTime());
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}
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/**
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* LST num为正:当前日期后num天是返回值 num为负:当前日期前num天是返回值 返回的日期的格式:yyyy-MM-dd
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*/
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public static String getTheDay(int num) {
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SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd", Locale.CHINA);
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GregorianCalendar gc = new GregorianCalendar();
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gc.add(GregorianCalendar.DATE, num);
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Date theday = gc.getTime();
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return sdf.format(theday);
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}
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/**
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* 将日期由String转换为Date类型
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*
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* @param date
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* @return
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* @throws ParseException
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*/
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public static Date convertStringToDate(String sdate) throws ParseException {
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String date = sdate;
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if (StringUtils.isBlank(date)) {
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date = getToday();
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}
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SimpleDateFormat objDateFormat = new SimpleDateFormat("yyyy-MM-dd", Locale.CHINA);
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Date objDate = objDateFormat.parse(date);
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return objDate;
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}
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/**
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* 将日期由String转换为Date类型
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*
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* @param date
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* @param format
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* @return
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* @throws ParseException
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*/
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public static Date convertStringToDate(String sdate, String format) throws ParseException {
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String date = sdate;
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SimpleDateFormat objDateFormat = new SimpleDateFormat(format, Locale.CHINA);
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if (StringUtils.isBlank(date)) {
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java.sql.Timestamp ts = new java.sql.Timestamp(System.currentTimeMillis());
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date = objDateFormat.format(ts);
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}
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Date objDate = objDateFormat.parse(date);
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return objDate;
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}
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/**
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* 将日期由yyyy年MM月String转换为Date类型
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*
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* @param date
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* @return
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* @throws ParseException
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*/
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public static Date convertStringToDateCh(String sdate) throws ParseException {
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String date = sdate;
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SimpleDateFormat objDateFormat = new SimpleDateFormat("yyyy年MM月", Locale.CHINA);
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if (StringUtils.isBlank(date)) {
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java.sql.Timestamp ts = new java.sql.Timestamp(System.currentTimeMillis());
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date = objDateFormat.format(ts);
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}
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Date objDate = objDateFormat.parse(date);
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return objDate;
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}
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/**
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* 取得指定年月的第一天
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* @param year
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* @param month
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* @return
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*/
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public static String getLastDayOfMonthToString(int year, int month) {
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Calendar cal = Calendar.getInstance();
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cal.set(Calendar.YEAR, year);
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cal.set(Calendar.MONTH, month - 1);
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cal.set(Calendar.DAY_OF_MONTH,cal.getActualMaximum(Calendar.DATE));
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return new SimpleDateFormat( "yyyy-MM-dd", Locale.CHINA).format(cal.getTime());
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}
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/**
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* 取得指定年月的最后一天
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* @param year
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* @param month
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* @return
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*/
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public static String getFirstDayOfMonthToString(int year, int month) {
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Calendar cal = Calendar.getInstance();
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cal.set(Calendar.YEAR, year);
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cal.set(Calendar.MONTH, month - 1);
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cal.set(Calendar.DAY_OF_MONTH,cal.getMinimum(Calendar.DATE));
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return new SimpleDateFormat( "yyyy-MM-dd", Locale.CHINA).format(cal.getTime());
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}
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/**
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* 取得指定年月的第一天
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* @param year
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* @param month
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* @return
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*/
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public static Date getLastDayOfMonthToDate(int year, int month) {
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Calendar cal = Calendar.getInstance();
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cal.set(Calendar.YEAR, year);
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cal.set(Calendar.MONTH, month - 1);
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cal.set(Calendar.DAY_OF_MONTH,cal.getActualMaximum(Calendar.DATE));
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return cal.getTime() ;
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}
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/**
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* 取得指定年月的最后一天
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* @param year
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* @param month
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* @return
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*/
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public static Date getFirstDayOfMonthToDate(int year, int month) {
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Calendar cal = Calendar.getInstance();
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cal.set(Calendar.YEAR, year);
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cal.set(Calendar.MONTH, month - 1);
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cal.set(Calendar.DAY_OF_MONTH,cal.getMinimum(Calendar.DATE));
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return cal.getTime();
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}
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/**
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* 得到一段时间内有多少周
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* @param startTime
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* @param endTime
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* @return
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*/
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public static int getWeekCounts(Date startTime,Date endTime){
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Calendar c_begin = Calendar.getInstance();
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Calendar c_end = Calendar.getInstance();
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c_begin.setTime(startTime);
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c_end.setTime(endTime);
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int count = 1;
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while(c_begin.before(c_end)){
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if(c_begin.get(Calendar.DAY_OF_WEEK)==Calendar.SUNDAY){
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count++;
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}
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c_begin.add(Calendar.DAY_OF_YEAR, 1);
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}
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return count;
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}
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/**
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* 得到日期的年
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* @param date
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* @return
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*/
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public static int getYearInDate(Date date){
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Calendar cal = Calendar.getInstance();
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cal.setTime(date);
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return cal.get(Calendar.YEAR);
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}
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/**
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* 当前时间处于一段时间的第几周
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* @param startTime
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* @param endTime
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* @return
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*/
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public static int getWeekIndex(Date startTime,Date endTime){
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Calendar begin = Calendar.getInstance();
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Calendar end = Calendar.getInstance();
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begin.setTime(startTime);
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end.setTime(endTime);
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int count = 1;
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Calendar now = Calendar.getInstance();
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while(begin.before(end)){
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if(begin.get(Calendar.YEAR) == now.get(Calendar.YEAR)
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&& begin.get(Calendar.MONTH) == now.get(Calendar.MONTH)
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&& begin.get(Calendar.DAY_OF_MONTH) == now.get(Calendar.DAY_OF_MONTH)){
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return count ;
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}
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if(begin.get(Calendar.DAY_OF_WEEK)==Calendar.SUNDAY){
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count++;
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}
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begin.add(Calendar.DAY_OF_YEAR, 1);
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}
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return count;
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}
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/**
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* 指定时间处于一段时间的第几周
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* @param startTime
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* @param endTime
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* @return
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*/
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public static int getSpecifyWeekIndex(Date startTime,Date endTime,Date specifyDate){
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Calendar begin = Calendar.getInstance();
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Calendar end = Calendar.getInstance();
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begin.setTime(startTime);
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end.setTime(endTime);
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int count = 1;
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Calendar specify = Calendar.getInstance();
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specify.setTime(specifyDate);
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while(begin.before(end)){
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if(begin.get(Calendar.YEAR) == specify.get(Calendar.YEAR)
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&& begin.get(Calendar.MONTH) == specify.get(Calendar.MONTH)
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&& begin.get(Calendar.DAY_OF_MONTH) == specify.get(Calendar.DAY_OF_MONTH)){
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return count ;
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}
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if(begin.get(Calendar.DAY_OF_WEEK)==Calendar.SUNDAY){
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count++;
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}
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begin.add(Calendar.DAY_OF_YEAR, 1);
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}
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return count;
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}
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}
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