Calendar 转化 String

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

 

String 转化Calendar

String str="2016-6-25";SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");Date date =sdf.parse(str);Calendar calendar = Calendar.getInstance();calendar.setTime(date);

Date 转化String

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

 

String 转化Date

String str="2016-6-25";SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");Date date= sdf.parse(str);

 

Date 转化Calendar

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

 

Calendar转化Date

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

 

String 转成 Timestamp

Timestamp ts = Timestamp.valueOf("2016-6-25 15:11:00");

 

Date 转 TimeStamp

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