1、从结果集中取得日期部分
resultSet.getDate(); --2013-01-07
2、从结果集中取得时间部分
resultSet.getTime() --22：08：09
3、从结果集中同时得到日期和时间
resultSet.getTimestamp(); --2013-01-07 23：08：09
@Override
public List<User> findAll() {
List<User> list = new ArrayList<User>();
Connection con = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
con = JdbcUtil.getConnection();
String sql = "select * from [user]";
stmt = con.prepareStatement(sql);
rs = stmt.executeQuery();
while(rs.next())
{
//精确到秒 yyyy-MM-dd HH:mm:ss
User u = new User(rs.getInt("id"), rs.getString("username"),rs.getString("password"),rs.getTimestamp("createtime"));
//精确到秒 yyyy-MM-dd
//User u = new User(rs.getInt("id"), rs.getString("username"),rs.getString("password"),rs.getDate("createtime"));
list.add(u);
}
return list;
} catch (Exception e) {
e.printStackTrace();
}
finally
{
JdbcUtil.close(rs, stmt, con);
}
return null;
}
@Override
public void add(User user) {
Connection con = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
con = JdbcUtil.getConnection();
String sql = "insert into [user](username,password,createtime) values(?,?,?)";
stmt= con.prepareStatement(sql);
stmt.setString(1, user.getUsername());
stmt.setString(2,user.getPassword());
//精确到秒 yyyy-MM-dd HH:mm:ss
//stmt.setTimestamp(3, new java.sql.Timestamp((new Date()).getTime()));
//下面精确到 日 yyyy-MM-dd
stmt.setDate(3, new java.sql.Date(new Date().getTime()));
stmt.execute();
} catch (Exception e) {
e.printStackTrace();
}finally
{
JdbcUtil.close(rs, stmt, con);
}
}