public void testPreparedStatement() {
    Connection connection = null;
    PreparedStatement ps = null;

    try {
        connection = JDBCTools.getConnection();
        String sql = "insert into t_user (id, username, pwd, regTime, lastLoginTime) values(?,?,?,?,?)";
        ps = connection.prepareStatement(sql);
        ps.setInt(1, 2);
        ps.setString(2, "狗贼");
        ps.setString(3, "123456");
        ps.setDate(4, new Date(System.currentTimeMillis()));
        ps.setTimestamp(5, new Timestamp(System.currentTimeMillis()));
        ps.executeUpdate();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        JDBCTools.release(ps, connection);
    }
}