go语言查询mysql demo

package main

import (
    "database/sql"
    "fmt"
    _ "github.com/go-sql-driver/mysql"
)

type User struct {
    ID   int
    Name string
}

func main() {
    // 连接数据库
    db, err := sql.Open("mysql", "user:password@tcp(127.0.0.1:3306)/dbname")
    if err != nil {
        panic(err.Error())
    }
    defer db.Close()

    // 查询数据
    rows, err := db.Query("SELECT id, name FROM users")
    if err != nil {
        panic(err.Error())
    }
    defer rows.Close()

    var users []User
    for rows.Next() {
        var user User
        err := rows.Scan(&user.ID, &user.Name)
        if err != nil {
            panic(err.Error())
        }
        users = append(users, user)
    }

    // 打印结果
    for _, user := range users {
        fmt.Printf("ID: %d, Name: %s\n", user.ID, user.Name)
    }
}