1 /**
2 * @Author taozhaoyang
3 * @Description 结合 java8 线程安全
4 * @Date 9:55 2018/7/30
5 **/
6 public class NewDateUtil {
7
8 private static DateTimeFormatter sdf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
9
10 /**
11 * 时间戳 转 date(String)
12 *
13 * @param time 毫秒
14 * @return
15 */
16 public static String formatTimestamp(Long time) {
17 return sdf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(time), ZoneId.systemDefault()));
18 }
19
20 /**
21 * @Author taozhaoyang
22 * @Description localDateTime 转 Date
23 * @Date 20:07 2018/7/30
24 * @Param [localDateTime]
25 * @return java.util.Date
26 **/
27 public static Date covertLocalDateTimeToDate (LocalDateTime localDateTime) {
28 return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
29 }
30
31 /**
32 * @Author taozhaoyang
33 * @Description localDateTime 转 String
34 * @Date 20:07 2018/7/30
35 * @Param [localDateTime]
36 * @return java.lang.String
37 **/
38 public static String formatLocalDateTime (LocalDateTime localDateTime) {
39 return formatDate(covertLocalDateTimeToDate(localDateTime));
40 }
41
42 /**
43 * 时间 转 date(String)
44 *
45 * @param date
46 * @return
47 */
48 public static String formatDate(Date date) {
49 return sdf.format(covertDateToLocalDateTime(date));
50 }
51
52 public static LocalDateTime covertDateToLocalDateTime (Date date) {
53 return LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault());
54 }
55 /**
56 * string 转date
57 *
58 * @param date
59 * @return
60 */
61 public static Date parseString(String date) {
62 return Date.from(LocalDateTime.parse(date, sdf).atZone(ZoneId.systemDefault()).toInstant());
63 }
64
65 /**
66 * @Author taozhaoyang
67 * @Description 比较相差多少天，只比较天数
68 * @Date 20:30 2018/7/30
69 * @Param [startDate, endDate]
70 * @return long
71 **/
72 public static long compareDates(Date startDate,Date endDate) {
73 return covertDateToLocalDateTime(endDate).toLocalDate().until(covertDateToLocalDateTime(endDate).toLocalDate(), ChronoUnit.DAYS);
74 }
75
76 /**
77 * @Author taozhaoyang
78 * @Description 今天 还剩多少秒
79 * @Date 20:35 2018/7/30
80 * @Param [startDate, endDate]
81 * @return long
82 **/
83 public static long remianSecondsOfToday() {
84 return LocalDateTime.now().until(LocalDateTime.of(LocalDate.now(),LocalTime.MAX), ChronoUnit.SECONDS);
85 }
86
87 /**
88 * @Author taozhaoyang
89 * @Description 和当前相差多少天
90 * @Date 20:31 2018/7/30
91 * @Param [endDate]
92 * @return long
93 **/
94 public static long compareToDay(Date endDate) {
95 return LocalDate.now().until(covertDateToLocalDateTime(endDate), ChronoUnit.DAYS);
96 }
97
98 public static void main(String[] args) {
99 System.out.println("----------------------");
100 long time = 1532353895000L;
101 System.out.println(formatTimestamp(time));
102
103 Date date = new Date();
104 System.out.println(formatDate(date));
105
106 String str = "2018-07-23 21:51:35";
107 System.out.println(parseString(str));
108 System.out.println("----------------------");
109
110 System.out.println(formatLocalDateTime(LocalDateTime.now()));
111
112 System.out.println(compareToDay(parseString(str)));
113 System.out.println(remianSecondsOfToday());
114 }
115 }
116
