public Topic getTopic(Long id) {
return jdbcTemplate.query("select * from topic where id = ? limit 1",
ps -> ps.setLong(1, id),
(rs, row) -> {
Topic topic = new Topic();
<BUG>topic.setId(id);
topic.setAction(rs.getString("action"));</BUG>
topic.setTitle(rs.getString("title"));
topic.setContent(rs.getString("content"));
topic.setCreate_time(rs.getTimestamp("create_time"));

public Topic getTopic(Long id) {
return jdbcTemplate.query("select * from topic where id = ? limit 1",
ps -> ps.setLong(1, id),
(rs, row) -> {
Topic topic = new Topic();
topic.setId(rs.getLong("id"));
topic.setAction(rs.getString("action"));
topic.setTitle(rs.getString("title"));
topic.setContent(rs.getString("content"));
topic.setCreate_time(rs.getTimestamp("create_time"));
