mysql(或其他數據庫)
阿新 • • 發佈:2019-02-14
update pda roo code sql tab ack hub print 連接mysql(用sqlx庫,不僅支持mysql,第一個參數還可以是別的數據庫):
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", "[email protected]")
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", "[email protected]")
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"` } //此處的db是線程安全的,實現了連接池 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", "[email protected]") 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")
}
mysql(或其他數據庫)