java时间转换

1、long型转换成String

SimpleDateFormat formatter = new SimpleDateFormat("yyyy年-MM月dd日-HH时mm分ss秒");
Date data=new Date(System.currentTimeMillis());
String sTime = formatter.format(data);

2、String转换成long

String sTime = "2016-01-13 14:39";

SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd HH:mm");
Date dt = sdf.parse(sTime );
long lTime = dt.getTime();

3、Data转换成long

Date dt = new Date();

long lTime = dt.getTime();