Select操作
<h1>1. Select操作</h1>
<pre><code>package main
import (
"fmt"
_ "github.com/go-sql-driver/mysql"
"github.com/jmoiron/sqlx"
)
type Person struct {
UserId int `db:"user_id"`
Username string `db:"username"`
Sex string `db:"sex"`
Email string `db:"email"`
}
type Place struct {
Country string `db:"country"`
City string `db:"city"`
TelCode int `db:"telcode"`
}
var Db *sqlx.DB
func init() {
database, err := sqlx.Open("mysql", "root:root@tcp(127.0.0.1:3306)/test")
if err != nil {
fmt.Println("open mysql failed,", err)
return
}
Db = database
defer db.Close() // 注意这行代码要写在上面err判断的下面
}
func main() {
var person []Person
err := Db.Select(&person, "select user_id, username, sex, email from person where user_id=?", 1)
if err != nil {
fmt.Println("exec failed, ", err)
return
}
fmt.Println("select succ:", person)
}</code></pre>
<p>输出结果：</p>
<pre><code> select succ: [{1 stu001 man stu01@qq.com}]</code></pre>