用sqlx库连接mysql操作方法

本文主要给大家介绍用sqlx库连接mysql操作方法，文章内容都是笔者用心摘选和编辑的，具有一定的针对性，对大家的参考意义还是比较大的，下面跟笔者一起了解下用sqlx库连接mysql操作方法吧。

连接mysql(用sqlx库，不仅支持mysql，第一个参数还可以是别的数据库)：
database, err := sqlx.Open("mysql", "root:password@tcp(127.0.0.1:3306)/dbname")
insert操作：
r, err := Db.Exec("insert into person(username, sex, email)values(?, ?, ?)", "stu001", "man", "stu01@qq.com")

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"`
}

//此处的db是线程安全的，实现了连接池
var Db *sqlx.DB
func init() {
    database, err := sqlx.Open("mysql", "root:@tcp(127.0.0.1:3306)/test")
    if err != nil {
        fmt.Println("open mysql failed,", err)
        return
    }
    Db = database
}

func main() {
    r, err := Db.Exec("insert into person(username, sex, email)values(?, ?, ?)", "stu001", "man", "stu01@qq.com")
    if err != nil {
        fmt.Println("exec failed, ", err)
        return
    }
    id, err := r.LastInsertId()
    if err != nil {
        fmt.Println("exec failed, ", err)
        return
    }

    fmt.Println("insert succ:", id)
}

Select 操作：
err := Db.Select(&person, "select user_id, username, sex, email from person where user_id=?", 1)

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:@tcp(127.0.0.1:3306)/test")
    if err != nil {
        fmt.Println("open mysql failed,", err)
        return
    }

    Db = database
}

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)
}

update操作：
_, err := Db.Exec("update person set username=? where user_id=?", "stu0001", 1)

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:@tcp(127.0.0.1:3306)/test")
    if err != nil {
        fmt.Println("open mysql failed,", err)
        return
    }

    Db = database
}

func main() {

    _, err := Db.Exec("update person set username=? where user_id=?", "stu0001", 1)
    if err != nil {
        fmt.Println("exec failed, ", err)
        return
    }

}

Delete 操作：
_, err := Db.Exec("delete from person where user_id=?", 1)

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:@tcp(127.0.0.1:3306)/test")
    if err != nil {
        fmt.Println("open mysql failed,", err)
        return
    }

    Db = database
}

func main() {

    _, err := Db.Exec("delete from person where user_id=?", 1)
    if err != nil {
        fmt.Println("exec failed, ", err)
        return
    }

    fmt.Println("delete succ")
}
看完以上关于用sqlx库连接mysql操作方法，很多读者朋友肯定多少有一定的了解，如需获取更多的行业知识信息 ，可以持续关注我们的行业资讯栏目的。