63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package db
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import (
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"database/sql"
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"fmt"
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)
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func (c *Client) QueryRows(query string) ([]map[string]interface{}, error) {
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if c.Conn == nil {
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return nil, fmt.Errorf("database connection is nil")
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}
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rows, err := c.Conn.Query(query)
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if err != nil {
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return nil, fmt.Errorf("query error: %v", err)
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}
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defer func(rows *sql.Rows) {
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err := rows.Close()
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if err != nil {
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fmt.Println("关闭资源失败")
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}
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}(rows)
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// 获取列名
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cols, err := rows.Columns()
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if err != nil {
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return nil, err
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}
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var result []map[string]interface{}
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for rows.Next() {
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// 创建扫描用的切片
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columnPointers := make([]interface{}, len(cols))
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columnValues := make([]interface{}, len(cols))
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for i := range columnPointers {
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columnPointers[i] = &columnValues[i]
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}
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if err := rows.Scan(columnPointers...); err != nil {
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return nil, err
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}
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rowMap := make(map[string]interface{})
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for i, colName := range cols {
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val := columnValues[i]
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if b, ok := val.([]byte); ok {
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rowMap[colName] = string(b)
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} else {
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rowMap[colName] = val
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}
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}
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result = append(result, rowMap)
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return result, nil
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}
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