1 import java.text.ParseException;
2 import java.text.SimpleDateFormat;
3 import java.util.Date;
4
5 public class DateUtil {
6
7 private static SimpleDateFormat sf = null;
8
9 /**
10 * 获取系统时间
11 */
12 public static String getCurrentDate() {
13 Date d = new Date();
14 sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
15 return sf.format(d);
16 }
17
18 /**
19 * 时间戳转换成字符串
20 */
21 public static String getDateToString(long time) {
22 Date d = new Date(time);
23 sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
24 return sf.format(d);
25 }
26
27 /**
28 * 将字符串转为时间戳
29 */
30 public static long getStringToDate(String time) {
31 sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
32 Date date = new Date();
33 try{
34 date = sf.parse(time);
35 } catch(ParseException e) {
36 e.printStackTrace();
37 }
38 return date.getTime();
39 }
40
41 /**
42 * 直接获取时间戳
43 */
44 public static String getTimeStamp() {
45 String currentDate = getCurrentDate();
46 sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
47 Date date = new Date();
48 try{
49 date = sf.parse(currentDate);
50 } catch(ParseException e) {
51 e.printStackTrace();
52 }
53 return String.valueOf(date.getTime());
54 }
55
56 }
