//将日期格式装成时间戳
try {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date date = sdf.parse("2016-08-25");
long timestamp = date.getTime();
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//将时间戳转成指定的日期格式
SimpleDateFormat sdf1=new SimpleDateFormat("yyyy-MM-dd hh:mm");
long timeStamp=1472089224000L;
String s=sdf1.format(new Date(timeStamp));
System.out.println(s);//打印:2016-08-25 09:40