golang语言sql Rows转化保存成map

func DoQuery(db *sql.DB, sqlInfo string, args ...interface{}) ([]map[string]interface{}, error) {
    rows, err := db.Query(sqlInfo, args...)
    if err != nil {
        return nil, err
    }
    columns, _ := rows.Columns()
    columnLength := len(columns)
    cache := make([]interface{}, columnLength) //临时存储每行数据
    for index, _ := range cache { //为每一列初始化一个指针
        var a interface{}
        cache[index] = &a
    }
    var list []map[string]interface{} //返回的切片
    for rows.Next() {
        _ = rows.Scan(cache...)
 
        item := make(map[string]interface{})
        for i, data := range cache {
            item[columns[i]] = *data.(*interface{}) //取实际类型
        }
        list = append(list, item)
    }
    _ = rows.Close()
    return list, nil
}

来源：https://www.cnblogs.com/nyist-xsk/p/11414197.html