SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
java.util.Date date = null;
try {
date = sdf.parse("1999-09-09");
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
java.sql.Date birthday=new Date(date.getTime());
结果的birthday就是sql日期类型的格式了!