Spring框架事件 [英] Spring Framework Events

问题描述

我是通过Spring框架的文档阅读，发现一节使用的ApplicationContext春季引发事件。看完几段后，我发现，春天的事件被同步提高。有什么办法来提高异步事件？你的帮助是非常AP preciated。我期待类似的东西，这将有助于我完成我的模块。

I was reading through spring framework documentation and found a section on raising events in Spring using ApplicationContext. After reading few paragraphs I found that spring events are raised synchronously. Is there any way to raise asynchronous events? your help is much appreciated. I am looking something similar which would help me to complete my module.

推荐答案

最简单的异步ApplicationListener：

Simplest asynchronous ApplicationListener:

出版商：

@Autowired
private SimpleApplicationEventMulticaster simpleApplicationEventMulticaster;

@Autowired
private AsyncTaskExecutor asyncTaskExecutor;

// ...

simpleApplicationEventMulticaster.setTaskExecutor(asyncTaskExecutor);

// ...

ApplicationEvent event = new ApplicationEvent("");
simpleApplicationEventMulticaster.multicastEvent(event);

监听器：

@Component
static class MyListener implements ApplicationListener<ApplicationEvent> 
    public void onApplicationEvent(ApplicationEvent event) {
         // do stuff, typically check event subclass (instanceof) to know which action to perform
    }
}

您应该继承了ApplicationEvent与特定的事件。您可以在XML文件中配置SimpleApplicationEventMulticaster及其taksExecutor。

You should subclass ApplicationEvent with your specific events. You can configure SimpleApplicationEventMulticaster and its taksExecutor in an xml file.

您可能要实施ApplicationEventPublisherAware在监听器类和事件构造传递源对象（而不是空字符串）。

You might want to implement ApplicationEventPublisherAware in your listener class and pass a source object (instead of empty string) in the event constructor.

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