使用一个异步控制器，你释放这些线程时不做任何事情，这样他们就可以服务其他请求。

With an async controller, you free up these threads while they are not doing anything, so they can service other requests.

youdao

使用一个异步控制器，你释放这些线程时不做任何事情，这样他们就可以服务其他请求。

With an async controller, you free up these threads while they are not doing anything, so they can service other requests.

youdao