在go中连接mysql

• 5.访问数据库

• 5.1 database/sql接口
• 5.2 使用MySQL数据库
• 5.3 使用SQLite数据库
• 5.4 使用PostgreSQL数据库
• 5.5 使用Beego orm库进行ORM开发
• 5.6 NOSQL数据库操作
• 5.7 小结

package main

import (
	"database/sql"
	"fmt"

	_ "github.com/go-sql-driver/mysql"
)

func main() {
	db, err := sql.Open("mysql", "beego:beego_pass@tcp(10.25.27.92:3306)/PrismLogDB?charset=utf8")
	checkErr(err)

	stmt, err := db.Prepare("INSERT userinfo SET username=?, departname=?,created=?")
	checkErr(err)

	res, err := stmt.Exec("astaxie", "研发部门", "2012-12-19")
	checkErr(err)

	res, err = stmt.Exec("chengang", "研发部门", "2017-12-19")
	checkErr(err)

	id, err := res.LastInsertId()
	checkErr(err)

	fmt.Println(id)

	stmt, err = db.Prepare("update userinfo set username=? where uid=?")
	checkErr(err)

	res, err = stmt.Exec("astaxieupdate", id)
	checkErr(err)

	affect, err := res.RowsAffected()
	checkErr(err)
	fmt.Println(affect)

	rows, err := db.Query("SELECT * FROM userinfo")
	checkErr(err)

	for rows.Next() {
		var uid int
		var username string
		var department string
		var created string
		err = rows.Scan(&uid, &username, &department, &created)
		checkErr(err)
		fmt.Println(uid)
		fmt.Println(username)
		fmt.Println(department)
		fmt.Println(created)
	}

	stmt, err = db.Prepare("delete from userinfo where uid=?")
	checkErr(err)

	res, err = stmt.Exec(id)
	checkErr(err)

	affect, err = res.RowsAffected()
	checkErr(err)

	fmt.Println(affect)
	db.Close()

}

func checkErr(err error) {
	if err != nil {
		panic(err)
	}
}