package databases import ( "database/sql" "fmt" _ "github.com/go-sql-driver/mysql" "useEquipmentTimeEarlyWARNING/config" ) var Db *sql.DB func init() { host := config.Config.GetString("datasource.host") port := config.Config.GetString("datasource.port") dbname := config.Config.GetString("datasource.dbname") username := config.Config.GetString("datasource.username") password := config.Config.GetString("datasource.password") var datasource string = fmt.Sprintf("%s:%s@tcp(%s:%s)/%s", username, password, host, port, dbname) db, err := sql.Open("mysql", datasource) if err != nil { panic("初始化数据库失败,请检查数据库配置是否正确!") } _, err = db.Exec("show tables") if err != nil { panic("数据库连接失败,请检查!") } Db = db }