已知,存在 QueryRunner对象 runner , SQL语句: String sql = "select * from user where id=?"; 下面操作中,能实现查询指定记录的选项是() A: User user=(User)runner.query(sql, new BeanListHandler(User.class), new Object[]{id}); B: User user=(User)runner.query(sql, new BeanHandler(User.class)); C: User user=(User)runner.query(sql, new BeanListHandler(User.class), id); D: User user=(User)runner.query(sql, new BeanHandler(User.class), new Object[]{id});

Dbutils中的ResultSetHandler类中的子类BeanListHandler的作用是将查询结果的每一行数据都封装成一个javaBean对象;然后将这些javaBean对象保存到一个list集合中

已知，存在 QueryRunner对象 runner ， SQL语句：String sql = "select * from user";下面操作中，能实现查询所有记录的选项是（） A: List<;User>; list=runner.query(sql, newBeanHandler<;User>;(User.class)); B: List<;User>; list=runner.query(sql, new BeanListHandler<;User>;(User.class));Object num =runner.delete(1, sql); C: Object list=runner.query(sql, new BeanHandler<;User>;(User.class)); D: List list=runner.query(sql, new BeanHandler<;User>;(User.class));

已知，存在 QueryRunner对象 runner ， SQL语句：String sql = &quot;select * from user&quot;;下面操作中，能实现查询所有记录的选项是（ ） A: Object list=runner.query(sql, new BeanHandler＜User＞(User.class)); B: List list=runner.query(sql, new BeanHandler＜User＞(User.class)); C: List＜User＞ list=runner.query(sql, new BeanHandler＜User＞(User.class)); D: List＜User＞ list=runner.query(sql, new BeanListHandler＜User＞(User.class));Object num =runner.delete(1, sql);