jdbcTemplate的rowMapper内部类写法

String sql ="select sku,feature from product"
List<Product> products = jdbcTemplate.query(sql, (rs, rowNum) -> {
            Product entity = new Product();
            entity.setProductSku(rs.getString(ProductDBField.SKU));
            entity.setProductFeature(rs.getString(ProductDBField.FEATURE));
            return entity;
        });