package com.huangshan.gjj.utils;
import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date;
/**
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文件描述：
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作者：Administrator
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创建时间：2018/8/27
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更改时间：2018/8/27
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类功能：1
*/
public class TimeCalUtils { private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); private static Calendar startDate = Calendar.getInstance(); private static Calendar endDate = Calendar.getInstance(); private static DateFormat df = DateFormat.getDateInstance(); private static Date earlydate = new Date(); private static Date latedate = new Date();
/** * 计算两个时间相差多少个年 * * @return * @throws ParseException */public static int yearsBetween(String start, String end) { try { startDate.setTime(sdf.parse(start)); endDate.setTime(sdf.parse(end)); return (endDate.get(Calendar.YEAR) - startDate.get(Calendar.YEAR)); } catch (ParseException e) { return -2; }}/** * 计算两个时间相差多少个月 * * @return int * @throws ParseException */public static int monthsBetween(String start, String end) throws ParseException { startDate.setTime(sdf.parse(start)); endDate.setTime(sdf.parse(end)); int result = yearsBetween(start, end) * 12 + endDate.get(Calendar.MONTH) - startDate.get(Calendar.MONTH); return result == 0 ? 1 : Math.abs(result);}/** * 计算两个时间相差多少个天 * * @return * @throws ParseException */public static int daysBetween(String start, String end) throws ParseException { // 得到两个日期相差多少天 return hoursBetween(start, end) / 24;}/** * 计算两个时间相差多少小时 * * @throws ParseException */public static int hoursBetween(String start, String end) throws ParseException { // 得到两个日期相差多少小时 return minutesBetween(start, end) / 60;}/** * 计算两个时间相差多少分 * * @throws ParseException */public static int minutesBetween(String start, String end) throws ParseException { // 得到两个日期相差多少分 return secondesBetween(start, end) / 60;}/** * 计算两个时间相差多少秒 * * @return * @throws ParseException */public static int secondesBetween(String start, String end) throws ParseException { earlydate = df.parse(start); latedate = df.parse(end); startDate.setTime(earlydate); endDate.setTime(latedate); // 设置时间为0时 startDate.set(Calendar.HOUR_OF_DAY, 0); startDate.set(Calendar.MINUTE, 0); startDate.set(Calendar.SECOND, 0); endDate.set(Calendar.HOUR_OF_DAY, 0); endDate.set(Calendar.MINUTE, 0); endDate.set(Calendar.SECOND, 0); // 得到两个日期相差多少秒 return ((int) (endDate.getTime().getTime() / 1000) - (int) (startDate.getTime().getTime() / 1000));}复制代码 } package com.huangshan.gjj.utils;
import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date;
/**
-
文件描述：
-
作者：Administrator
-
创建时间：2018/8/27
-
更改时间：2018/8/27
-
类功能：1
*/
public class TimeCalUtils { private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); private static Calendar startDate = Calendar.getInstance(); private static Calendar endDate = Calendar.getInstance(); private static DateFormat df = DateFormat.getDateInstance(); private static Date earlydate = new Date(); private static Date latedate = new Date();
/** * 计算两个时间相差多少个年 * * @return * @throws ParseException */public static int yearsBetween(String start, String end) { try { startDate.setTime(sdf.parse(start)); endDate.setTime(sdf.parse(end)); return (endDate.get(Calendar.YEAR) - startDate.get(Calendar.YEAR)); } catch (ParseException e) { return -2; }}/** * 计算两个时间相差多少个月 * * @return int * @throws ParseException */public static int monthsBetween(String start, String end) throws ParseException { startDate.setTime(sdf.parse(start)); endDate.setTime(sdf.parse(end)); int result = yearsBetween(start, end) * 12 + endDate.get(Calendar.MONTH) - startDate.get(Calendar.MONTH); return result == 0 ? 1 : Math.abs(result);}/** * 计算两个时间相差多少个天 * * @return * @throws ParseException */public static int daysBetween(String start, String end) throws ParseException { // 得到两个日期相差多少天 return hoursBetween(start, end) / 24;}/** * 计算两个时间相差多少小时 * * @throws ParseException */public static int hoursBetween(String start, String end) throws ParseException { // 得到两个日期相差多少小时 return minutesBetween(start, end) / 60;}/** * 计算两个时间相差多少分 * * @throws ParseException */public static int minutesBetween(String start, String end) throws ParseException { // 得到两个日期相差多少分 return secondesBetween(start, end) / 60;}/** * 计算两个时间相差多少秒 * * @return * @throws ParseException */public static int secondesBetween(String start, String end) throws ParseException { earlydate = df.parse(start); latedate = df.parse(end); startDate.setTime(earlydate); endDate.setTime(latedate); // 设置时间为0时 startDate.set(Calendar.HOUR_OF_DAY, 0); startDate.set(Calendar.MINUTE, 0); startDate.set(Calendar.SECOND, 0); endDate.set(Calendar.HOUR_OF_DAY, 0); endDate.set(Calendar.MINUTE, 0); endDate.set(Calendar.SECOND, 0); // 得到两个日期相差多少秒 return ((int) (endDate.getTime().getTime() / 1000) - (int) (startDate.getTime().getTime() / 1000));}复制代码 }