The Java timestamp and date string are converted to each other

Java code

2. /**
4. * Timestamp converted to date format string
6. * @param seconds the exact string to the second
8. * @param formatstr
10. * @return
12. */
14. public static string timestamp2date (string seconds,string format) {
16. if (seconds = = Null | | seconds.isempty () | | seconds.equals ("null")) {
18. return "";
20. }
22. if (format = = Null | | format.isempty ()) format = "Yyyy-mm-dd HH:mm:ss";
24. SimpleDateFormat SDF = new SimpleDateFormat (format);
26. return Sdf.format (new Date (long.valueof (seconds+"000"));
28. }
30. /** 
32. * Date format string converted to timestamp
34. * @param date string dates
36. * @param format such as: Yyyy-mm-dd HH:MM:SS
38. * @return
40. */
42. public static string Date2timestamp (string date_str,string format) {
44. try {
46. SimpleDateFormat SDF = new SimpleDateFormat (format);
48. return string.valueof (Sdf.parse (DATE_STR). GetTime ()/1000);
50. } catch (Exception e) {
52. E.printstacktrace ();
54. }
56. return "";
58. }
62. /** 
64. * Get current timestamp (accurate to seconds)
66. * @return
68. */
70. public static String TimeStamp () {
72. Long time = System.currenttimemillis ();
74. String t = string.valueof (time/1000);
76. return t;
78. }
82. //Output Result:
84. //timestamp=1417792627
86. //date=2014-12-05 23:17:07
88. //1417792627
90. public static void Main (string[] args) {
92. String TimeStamp = TimeStamp ();
94. System.out.println ("timestamp=" +timestamp);
98. String date = Timestamp2date (TimeStamp, "Yyyy-mm-dd HH:mm:ss");
100. System.out.println ("date=" +date);
104. String TIMESTAMP2 = Date2timestamp (date, "Yyyy-mm-dd HH:mm:ss");
106. System.out.println (TIMESTAMP2);
108. }

The Java timestamp and date string are converted to each other