//4.1定义表头
String tableName="T_USER";
String tableCName = selectDataService.getString("select comments from user_tab_comments where table_name =‘"+tableName+"‘");
//4.2获取表的中文注释
List<Map> list=selectDataService.queryForList("select t.column_name,t.comments from user_col_comments t where table_name =‘"+tableName+"‘");