go:mysql-conf

mysql-conf.go

package utils

import (
	"database/sql"
	_ "github.com/go-sql-driver/mysql"
	"strconv"
)

/**
 * conf/app.conf
 * mysqlDSN = uname:upwd@tcp(ip:3306)/db-name?autocommit=true&charset=utf8
 * mysql.maxIdleConns = 10
 * mysql.maxActives = 200
 */

/**
 * main.go
 * 	DB, err := utils.OpenMysql()
 * 	if err != nil {
 * 		utils.Logger.Error("init mysql-db dw connection failure:", err.Error())
 * 		return
 * 	} else {
 * 		utils.Logger.Info("init mysql-db dw connection successful.")
 * 		defer DB.Close()
 * 	}
 * 	utils.DB = DB
 */

var DB *sql.DB

func OpenMysql() (db *sql.DB, err error) {
	db, err = sql.Open("mysql", Config["mysql"])
	if db != nil {
		maxIdleConns, _ := strconv.ParseInt(Config["mysql.maxIdleConns"], 10, 32)
		maxActives, _ := strconv.ParseInt(Config["mysql.maxActives"], 10, 32)
		db.SetMaxIdleConns(int(maxIdleConns))
		db.SetMaxOpenConns(int(maxActives))
	}
	return
}