java.util.Date d = new java.util.Date();
java.sql.Date date = new java.sql.Date(d.getTime()); //会丢失时分秒
Time time = new Time(d.getTime()); //会丢失年月日
Timestamp timestamp = new Timestamp(d.getTime());
java.util.Date d = new java.util.Date();
java.sql.Date date = new java.sql.Date(d.getTime()); //会丢失时分秒
Time time = new Time(d.getTime()); //会丢失年月日
Timestamp timestamp = new Timestamp(d.getTime());