java根据开始时间结束时间计算中间间隔日期的实例代码

具体代码如下所述：

import java.text.parseexception;
import java.text.simpledateformat;
import java.util.arraylist;
import java.util.calendar;
import java.util.date;
import java.util.list;
public class test {
 public static list<string> finddates(string stime, string etime)
   throws parseexception {
  list<string> alldate = new arraylist();
  simpledateformat sdf = new simpledateformat("yyyy-mm-dd");
  date dbegin = sdf.parse(stime);
  date dend = sdf.parse(etime);
  alldate.add(sdf.format(dbegin));
  calendar calbegin = calendar.getinstance();
  // 使用给定的 date 设置此 calendar 的时间
  calbegin.settime(dbegin);
  calendar calend = calendar.getinstance();
  // 使用给定的 date 设置此 calendar 的时间
  calend.settime(dend);
  // 测试此日期是否在指定日期之后
  while (dend.after(calbegin.gettime())) {
   // 根据日历的规则，为给定的日历字段添加或减去指定的时间量
   calbegin.add(calendar.day_of_month, 1);
   alldate.add(sdf.format(calbegin.gettime()));
  }
  return alldate;
 }
 public static void main(string[] args) {
  //测试数据
  string stime = "2019-05-01";
  string etime = "2019-05-05";
  //集合中包含2019-05-01/2019-05-05，不需要可去除
  list<string> list = new arraylist<>();
  try {
   simpledateformat sdf = new simpledateformat("yyyy-mm-dd");
   long s = long.valueof(sdf.parse(stime).gettime());
   long e = long.valueof(sdf.parse(etime).gettime());
   //只有结束时间大于开始时间时才进行查询
   if(s<e) {
    list = finddates(stime, etime);
   }
  } catch (parseexception e) {
   e.printstacktrace();
  }
  for(string time : list) {
   system.out.println(time);
  }
  system.out.println("间隔天数：" + list.size());
 }
}

ps：下面看下java根据开始时间和结束时间，计算中间天数，并打印

import java.text.simpledateformat;
import java.util.date;
public class calcdate {
 static simpledateformat sdf = new simpledateformat("yyyy-mm-dd hh:mm:ss");
 static simpledateformat ymd = new simpledateformat("yyyy-mm-dd");
 public static void main(string[] args)throws exception{
  date begintime = sdf.parse("2015-04-23 12:32:44");
//  date endtime = sdf.parse("2015-04-23 14:56:44");
  date endtime = sdf.parse("2015-04-29 14:56:44");
  long diff = (endtime.gettime() - begintime.gettime()) / (86400 * 1000);
  system.out.println("diff = " + diff);
  date sb = null;
  date se = null;
  if(diff == 0){
   sb = begintime;
   se = endtime;
   string ss = string.format("%d> sb=%s, se=%s", 1, coder.datetimetostr(sb), coder.datetimetostr(se));
   system.out.println(ss);
  }else {
   int i = 0;
   while (i <= diff) {
    if (i == 0) {
     sb = begintime;
     se = sdf.parse(ymd.format(sb) + " 23:59:59");
    } else if (i == diff) {
     sb = sdf.parse(ymd.format(endtime) + " 00:00:00");
     se = endtime;
    } else {
     se = new date(begintime.gettime() + i * 24 * 60 * 60 * 1000);
     sb = sdf.parse(ymd.format(se) + " 00:00:00");
     se = sdf.parse(ymd.format(se) + " 23:59:59");
    }
    string ss = string.format("%d> sb=%s, se=%s", i, coder.datetimetostr(sb), coder.datetimetostr(se));
    system.out.println(ss);
    i++;
   }
  }
 }
}

diff = 6
0> sb=2015-04-23 12:32:44, se=2015-04-23 23:59:59
1> sb=2015-04-24 00:00:00, se=2015-04-24 23:59:59
2> sb=2015-04-25 00:00:00, se=2015-04-25 23:59:59
3> sb=2015-04-26 00:00:00, se=2015-04-26 23:59:59
4> sb=2015-04-27 00:00:00, se=2015-04-27 23:59:59
5> sb=2015-04-28 00:00:00, se=2015-04-28 23:59:59
6> sb=2015-04-29 00:00:00, se=2015-04-29 14:56:44

总结

以上所述是小编给大家介绍的java根据开始时间结束时间计算中间间隔日期的实例代码，希望对大家有所帮助