Spring集成 - 需要来自webservice网关的即时响应，并在后端进行异步处理

We have a requirement where the external client are calling one of our spring integration inbound webservice gateway and we need to acknowledge them right away with a generic OK status. Meanwhile, the payload will be submitted to a channel for asynchronous processing and we don't need the response(email will be sent based on some business validation).We have a requirement where the external client