adm-data-gateway/parser/database.go

// Copyright 2019 getensh.com. All rights reserved.
// Use of this source code is governed by getensh.com.

package parser

import (
	"adm-data-gateway/config"

	"git.getensh.com/common/gopkgsv2/database"
)

var mysqlConfig config.MysqlConfig

func MysqlHandler(conf *config.Configure) {
	// mysqlConfig.Addr 不为空表示已经初始化
	if mysqlConfig.Addr != "" {
		sqlDB, err := database.DB().DB()
		if err != nil {
			return
		}
		// 地址，用户名，密码相同比较其他配置是否一致
		if mysqlConfig.User == conf.Mysql.User &&
			mysqlConfig.Password == conf.Mysql.Password &&
			mysqlConfig.Addr == conf.Mysql.Addr {
			if mysqlConfig.MaxIdle != conf.Mysql.MaxIdle {
				sqlDB.SetMaxIdleConns(conf.Mysql.MaxIdle)
			}

			if mysqlConfig.MaxConn != conf.Mysql.MaxConn {
				sqlDB.SetMaxOpenConns(conf.Mysql.MaxConn)
			}

			if mysqlConfig.LogMode != conf.Mysql.LogMode {
				database.DB().Debug()
			}

			return // 这里直接返回
		}

		// 地址用户名密码不一致，关闭连接重新连接
		_ = sqlDB.Close()
	}

	// 私有db为空使用公共db
	dbname := conf.ADMDataGateway.MysqlDb
	if dbname == "" {
		dbname = conf.Mysql.DB
	}

	// 连接database
	database.Setup(conf.Mysql.User,
		conf.Mysql.Password,
		conf.Mysql.Addr,
		dbname,
		conf.Mysql.Charset,
		conf.Mysql.MaxIdle,
		conf.Mysql.MaxConn,
		conf.Mysql.LogMode)

	mysqlConfig = conf.Mysql
}