Spring中JDBC插入数据后获得该记录的ID

Spring为自增长主键值数据库中插入数据后，获得该插入数据的ID的代码示例：

    public void addForum(final Forum forum) {

        final String sql = "INSERT INTO t_forum(forum_name, forum_desc) VALUES(?,?)";

        KeyHolder keyHolder = new GeneratedKeyHolder();

        getJdbcTemplate().update(new PreparedStatementCreator() {

            public PreparedStatement createPreparedStatement(Connection conn) {

                PreparedStatement ps = conn.prepareStatement(sql);

                ps.setString(1, forum.getForumName());

                ps.setString(2, forum.getForumDesc());

                return ps;

            }

        }, keyHolder);

        forum.setForumId(keyHolder.getKey().intValue());

    }