如何在使用@Async 的方法中实现回调（Springboot 应用程序）

Question

I have a need to implement a callback-like solution to be notified of the success/failure of method calls. These methods I am calling are in a Springboot app and they are all asynchronous. More specifically, they all use the @Async annotation.

I have not been successful in finding a solution to this and was wondering whether others may have some ideas. I cannot use another async method (that is, I cannot change the existing code to remove the @Async and use something in its place). However, I can modify the method bodies themselves to add any callback capability.

Thank you.

Answer 1

I think you can just create a new Interface with two methods, and then pass a implementation parameter to the async method.

public interface TaskCallBack {
    
    void success(int code);
    void fail(int code);
}

Answer 2

Based on the suggestion of M. Derium (above) I am using CompletableFuture for my solution. I am still in the process of implementing and testing, but it seems to be a good solutions. Here is a good reference: Guide to CompletableFuture