采用Spring Cloud 微服务架构,一款高性、高吞吐量、高扩展性的物联网系统

package com.mqttsnet.thinglinks.common.core.utils; import java.lang.management.ManagementFactory; import java.sql.Timestamp; import java.text.ParseException; import java.text.ParsePosition; import java.text.SimpleDateFormat; import java.time.*; import java.time.format.DateTimeFormatter; import java.util.*; import com.alibaba.fastjson.JSONArray; import com.github.pagehelper.util.StringUtil; import org.apache.commons.lang3.time.DateFormatUtils; /** * 时间工具类 * * @author thinglinks */ public class DateUtils extends org.apache.commons.lang3.time.DateUtils { public static String YYYY = "yyyy"; public static String YYYY_MM = "yyyy-MM"; public static String YYYY_MM_DD = "yyyy-MM-dd"; public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss"; public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss"; private static String[] parsePatterns = { "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM", "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM", "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"}; /** * 获取当前时间 * * @return 当前日期 */ public static Timestamp getNowTime() { SimpleDateFormat dateFormat = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS); Timestamp nowTime = Timestamp.valueOf(dateFormat.format(new Date())); return nowTime; } /** * 获取当前系统时间. * 默认模板格式yyyy-MM-dd hh:mm:ss. * * @return 当前系统时间 */ public static String getCurrentDateTime() { return getCurrentDateTime(YYYY_MM_DD_HH_MM_SS); } /** * 获取当前系统同期。 * * @return 当前系统日期 * @author zhenggz 2003-11-09 */ public static String getCurrentDate() { return getCurrentDateTime(YYYY_MM_DD); } /** * 获取当前系统时间. * * @return 当前系统时间 */ public static String getCurrentDateTime(String pattern) { Calendar cal = Calendar.getInstance(); SimpleDateFormat sdf = new SimpleDateFormat(pattern); return sdf.format(cal.getTime()); } public static Date getDate(String dateStr) throws ParseException { return getDate(dateStr, YYYY_MM_DD_HH_MM_SS); } public static Date getDate(String dateStr, String pattern) throws ParseException { Date date = null; SimpleDateFormat dateFormat = new SimpleDateFormat(pattern); date = dateFormat.parse(dateStr); return date; } public static String getDateString(Date date) { return getString(date, YYYY_MM_DD); } public static String getDateTimeString(Date date) { return getString(date, YYYY_MM_DD_HH_MM_SS); } public static String getString(Date date, String pattern) { SimpleDateFormat dateFormat = new SimpleDateFormat(pattern); return dateFormat.format(date); } public static int getHour(Date date) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); int hour = calendar.get(Calendar.HOUR_OF_DAY); return hour; } public static long secsOf2Day(String day1, String day2) { try { Date date1 = getDate(day1); Date date2 = getDate(day2); long secs = Math.abs(date1.getTime() - date2.getTime()) / 1000; return secs; } catch (Exception e) { return -1; } } public static String getDateBefore(String datetimes, int day) { Calendar now = Calendar.getInstance(); try { now.setTime(getDate(datetimes)); } catch (ParseException e) { System.out.println("时间格式 [ " + datetimes + " ] 无法被解析：" + e.toString()); return null; } now.set(Calendar.DATE, now.get(Calendar.DATE) - day); return getString(now.getTime(), YYYY_MM_DD_HH_MM_SS); } /** * 获取当前Date型日期 * * @return Date() 当前日期 */ public static Date getNowDate() { return new Date(); } /** * 获取当前日期, 默认格式为yyyy-MM-dd * * @return String */ public static String getDate() { return dateTimeNow(YYYY_MM_DD); } public static final String getTime() { return dateTimeNow(YYYY_MM_DD_HH_MM_SS); } public static final String dateTimeNow() { return dateTimeNow(YYYYMMDDHHMMSS); } public static final String dateTimeNow(final String format) { return parseDateToStr(format, new Date()); } public static final String dateTime(final Date date) { return parseDateToStr(YYYY_MM_DD, date); } public static final String parseDateToStr(final String format, final Date date) { return new SimpleDateFormat(format).format(date); } public static final Date dateTime(final String format, final String ts) { try { return new SimpleDateFormat(format).parse(ts); } catch (ParseException e) { throw new RuntimeException(e); } } /** * 日期路径 即年/月/日 如2018/08/08 */ public static final String datePath() { Date now = new Date(); return DateFormatUtils.format(now, "yyyy/MM/dd"); } /** * 日期路径 即年/月/日 如20180808 */ public static final String dateTime() { Date now = new Date(); return DateFormatUtils.format(now, "yyyyMMdd"); } /** * 日期型字符串转化为日期 格式 */ public static Date parseDate(Object str) { if (str == null) { return null; } try { return parseDate(str.toString(), parsePatterns); } catch (ParseException e) { return null; } } /** * 获取服务器启动时间 */ public static Date getServerStartDate() { long time = ManagementFactory.getRuntimeMXBean().getStartTime(); return new Date(time); } /** * 计算两个时间差 */ public static String getDatePoor(Date endDate, Date nowDate) { long nd = 1000 * 24 * 60 * 60; long nh = 1000 * 60 * 60; long nm = 1000 * 60; // long ns = 1000; // 获得两个时间的毫秒时间差异 long diff = endDate.getTime() - nowDate.getTime(); // 计算差多少天 long day = diff / nd; // 计算差多少小时 long hour = diff % nd / nh; // 计算差多少分钟 long min = diff % nd % nh / nm; // 计算差多少秒//输出结果 // long sec = diff % nd % nh % nm / ns; return day + "天" + hour + "小时" + min + "分钟"; } //============================借助Calendar类获取今天、昨天、本周、上周、本年及特定时间的开始时间和结束时间（返回类型为date类型）======================== /** * 获取当天开始时间 * * @return */ public static Date getDayBegin() { Calendar cal = Calendar.getInstance(); //0点 cal.set(Calendar.HOUR_OF_DAY, 0); //0分 cal.set(Calendar.MINUTE, 0); //0秒 cal.set(Calendar.SECOND, 0); //0毫秒 cal.set(Calendar.MILLISECOND, 0); return cal.getTime(); } /** * 获取当前时间 */ public static String getNow() { LocalDateTime ldt1 = LocalDateTime.now(); DateTimeFormatter dtf1 = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"); String temp = dtf1.format(ldt1); return temp; } /** * 获取当前时间 */ public static String getNow(String zone) { Local