java springboot mybatis plus 3.4 实现执行任意 sql 语句

试了 SqlRunner 一直失败，不知道原因，于是试了如下方法，完美解决。

@Autowired
    private SqlSessionFactory sqlSessionFactory;

public List<Map<String, Object>> executeSql(String sql) throws SQLException {
        try(var sqlSession = sqlSessionFactory.openSession();)
        {
            try(var connection = sqlSession.getConnection();)
            {
                List<Map<String, Object>> resultList = new ArrayList<>();
                var statement = connection.createStatement();
                var resultSet = statement.executeQuery(sql);

                var metaData = resultSet.getMetaData();
                int columnCount = metaData.getColumnCount();

                while (resultSet.next()) {
                    Map<String, Object> rowMap = new HashMap<>();
                    for (int i = 1; i <= columnCount; i++) {
                        String columnName = metaData.getColumnLabel(i);
                        Object columnValue = resultSet.getObject(i);
                        rowMap.put(columnName, columnValue);
                    }
                    resultList.add(rowMap);
                }
                return resultList;
            }
        }
    }