@midwayjs/coreClassesDataListener版本:Next本页总览abstractDataListener <T, U>Index ConstructorsconstructorMethodsgetDatainitDataonDatastopConstructors constructornew DataListener<T, U>(): DataListener<T, U>Type parametersTU = TMethods publicgetDatagetData(): UabstractinitDatainitData(): T | Promise<T>abstractonDataonData(callback: (data: T) => void): anypublicstopstop(): Promise<void>