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Golang之Mysql操作

时间：2021-07-01 10:21:17 帮助过：4人阅读

"fmt" "github.com/jmoiron/sqlx" _ "github.com/go-sql-driver/mysql" //初始化一个mysql驱动，必须 ) 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() { //"mysql"指定数据库类型， /test指定数据库 root:123 冒号隔开密码 root账号 123密码 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() { //插入数据入表 r, err := Db.Exec("insert into person(username,sex,email)values(?,?,?)", "chaoge", "man", "yc_uuu@163.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) } insert

查询select

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() {
    //初始化链接数据库
    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)

}

select

改update

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=?", "chaoge666", 1)
    if err != nil {
        fmt.Println("exec failed,", err)
    }
}

update

删delete

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() {
    //初始化链接数据库
    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")
}

delete

Golang之Mysql操作

标签：操作账号 where eve 增加 36-6 int ret failed

Golang之Mysql操作

查询select

改update

删delete

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