1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
package com.tanpu.community.util;
import java.time.Duration;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
public class TimeUtils {
public static long getTimestampOfDateTime(LocalDateTime localDateTime) {
ZoneId zone = ZoneId.systemDefault();
Instant instant = localDateTime.atZone(zone).toInstant();
return instant.toEpochMilli();
}
public static LocalDateTime getDateTimeOfTimestamp(long timestamp) {
Instant instant = Instant.ofEpochMilli(timestamp);
ZoneId zone = ZoneId.systemDefault();
return LocalDateTime.ofInstant(instant, zone);
}
/**
* 计算迄今时间
*/
public static String calUpToNowTime(LocalDateTime start) {
Duration between = Duration.between(start, LocalDateTime.now());
long duration = between.toMinutes();
if (duration < 1) {
return "刚刚";
} else if (duration < 60) {
return duration + "分钟前";
} else if (duration < 60 * 24) {
return duration / 60 + "小时前";
} else if (duration < 60 * 48) {
return "1天前";
} else if (duration < 60 * 24 * 180) {
return start.format(DateTimeFormatter.ofPattern("MM-dd HH:mm"));
}
return start.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm"));
}
/**
* 格式化话题列表时间
* 发布时间 = Today，显示时间格式：00:00 ，24小时制
* 发布时间 = Today-1，显示时间格式：昨日 00:00 ，24小时制
* 发布时间 ＜Today-1，显示时间格式：yyyy年mm月dd日
*/
public static String formatTopicListTime(LocalDateTime target) {
LocalDateTime dayBegin = LocalDateTime.of(LocalDate.now(), LocalTime.MIN);
LocalDateTime lastDayBegin = dayBegin.minusDays(1);
if (target.isAfter(dayBegin)) {
return target.format(DateTimeFormatter.ofPattern(" HH:mm"));
} else if (target.isAfter(lastDayBegin)) {
return target.format(DateTimeFormatter.ofPattern("昨天 HH:mm"));
}
return target.format(DateTimeFormatter.ofPattern("yyyy年MM月dd日"));
}
public static String format(LocalDateTime start) {
return start.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm"));
}
public static LocalDateTime reFormat(String time) {
return LocalDateTime.parse(time,DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm"));
}
//计算迄今分钟
public static long calMinuteTillNow(LocalDateTime start) {
if (start==null){
return 0L;
}
Duration between = Duration.between(start, LocalDateTime.now());
return between.toMinutes();
}
//计算迄今毫秒数
public static long calMillisTillNow(LocalDateTime start) {
if (start==null){
return 0L;
}
Duration between = Duration.between(start, LocalDateTime.now());
return between.toMillis();
}
//计算迄今天数
public static long calDaysTillNow(LocalDateTime start) {
if (start==null){
return 0L;
}
Duration between = Duration.between(start, LocalDateTime.now());
return between.toDays();
}
//计算迄今小时数
public static long calHoursTillNow(LocalDateTime start) {
if (start==null){
return 0L;
}
Duration between = Duration.between(start, LocalDateTime.now());
return between.toHours();
}
//计算n天前的时间
public static LocalDateTime getDaysBefore(Integer number) {
return LocalDateTime.now().minusDays(number);
}
public static void main(String[] args) {
System.out.println(calUpToNowTime(LocalDateTime.now().minusDays(180)));
System.out.println(calUpToNowTime(LocalDateTime.now().minusDays(1)));
System.out.println(calUpToNowTime(LocalDateTime.now().minusDays(18)));
System.out.println(calUpToNowTime(LocalDateTime.now().minusHours(2)));
System.out.println(calUpToNowTime(LocalDateTime.now().minusMinutes(12)));
System.out.println(calUpToNowTime(LocalDateTime.now().minusSeconds(12)));
}
public static boolean lessThan(String cacheTime, LocalDateTime updateTime) {
return calMillisTillNow(reFormat(cacheTime)) > calMillisTillNow(updateTime);
}
public static boolean lessThan(LocalDateTime before, LocalDateTime after) {
return calMillisTillNow(before) > calMillisTillNow(after);
}
}