Asynchronous Servlet and Web

最新推荐文章于 2025-11-07 16:45:49 发布

原创最新推荐文章于 2025-11-07 16:45:49 发布 · 150 阅读

0 ·

CC 4.0 BY-SA版权

本文探讨了Servlet 3.0引入的异步支持如何在Spring框架中通过DeferredResult实现长时间运行任务的处理，从而提高应用在高负载下的可扩展性和效率，特别是在I/O密集型操作上。

https://www.baeldung.com/spring-deferred-result

https://docs.spring.io/spring/docs/current/spring-framework-reference/web.html#mvc-ann-async

https://spring.io/blog/2012/05/07/spring-mvc-3-2-preview-introducing-servlet-3-async-support

https://www.reactiveprogramming.be/spring-webflux-servlet-api/

https://www.javaworld.com/article/2077995/java-concurrency-asynchronous-processing-support-in-servlet-3-0.html

Asynchronous support was introduced in Servlet 3.0 and, simply put, it allows processing an HTTP request in another thread than the request receiver thread.

DeferredResult, available from Spring 3.2 onwards, assists in offloading a long-running computation from an http-worker thread to a separate thread.
Although the other thread will take some resources for computation, the worker threads are not blocked in the meantime and can handle incoming client requests.
The async request processing model is very useful as it helps scale an application well during high loads, especially for IO intensive operations.