String Date Calendar之间的转换

1 Calendar calendat = Calendar.getInstance();
2 
3 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
4 
5 String dateStr = sdf.format(calendar.getTime());

1 String str="2012-5-27";
2 
3 SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");
4 
5 Date date =sdf.parse(str);
6 
7 Calendar calendar = Calendar.getInstance();
8 
9 calendar.setTime(date);

1 SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");
2 
3 String dateStr=sdf.format(new Date());

1 String str="2012-5-27";
2 
3 SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");
4 
5 Date date= sdf.parse(str);

1 Calendar calendar = Calendar.getInstance();
2 
3 calendar.setTime(new java.util.Date());

1 Calendar calendar = Calendar.getInstance();
2 
3 java.util.Date date =calendar.getTime();

1 Timestamp ts = Timestamp.valueOf("2012-1-14 08:11:00");

1 SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
2 
3 String time = df.format(new Date());
4 
5 Timestamp ts = Timestamp.valueOf(time);