java线程上下文,Java / Spring MVC：向子线程提供请求上下文

最新推荐文章于 2024-08-28 10:25:15 发布

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最新推荐文章于 2024-08-28 10:25:15 发布 · 1.1k 阅读

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#java线程上下文

本文讲述了在Spring MVC应用中，将处理过程放入单独线程时遇到的问题，即如何在子线程中访问请求上下文。尝试通过存储并恢复`RequestAttributes`来保持请求上下文，但遇到了`BeanCreationException`，提示请求范围不适用于当前线程。文章讨论了错误原因，并提供了使用`HttpServletRequest`和`SecurityContext`来解决上下文问题的方案。

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I have the Problem, that I want to outsource some processes of my Spring WebMVC application into separate Threads. That was easy enough and works, until I want to use a class, userRightService, which uses the global request. That's not available in the threads, and we get a problem, that's pretty much understandable.

This is my Error:

java.lang.RuntimeException:

org.springframework.beans.factory.BeanCreationException: Error creating bean

with name 'scopedTarget.userRightsService': Scope 'request' is not active

for the current thread; consider defining a scoped proxy for this bean if

you intend to refer to it from a singleton; nested exception is

java.lang.IllegalStateException: Cannot ask for request attribute -

request is not active anymore!

Okay, clear enough. I am trying to keep the request context by implementing this solution: