Spring ApplicationListener没有收到事件 [英] Spring ApplicationListener is not receiving events

问题描述

我有以下ApplicationListener:

I have the following ApplicationListener:

package org.mycompany.listeners;

import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextStartedEvent;

public class MyApplicationListener implements ApplicationListener<ContextStartedEvent> {

  public MyApplicationListener() {
    super();
    System.out.println("Application context listener is created!");
  }

  /**
   * {@inheritDoc}
   */
  public void onApplicationEvent(final ContextStartedEvent event) {
    System.out.println("Context '" + event.getApplicationContext().getDisplayName() + "' is started!");
  }

}

以及以下bean定义:

And the following bean definition:

<bean name="myApplicationListener" class="org.mycompany.listeners.MyApplicationListener" />

我可以看到在打印来自构造函数的消息时就创建了bean，但是从未收到上下文启动事件.我想念什么?

I can see that bean is created as message from the constructor is printed, but context start event is never recieved. What am I missing?

推荐答案

ContextStartedEvent.如果您需要在初始化上下文时发布的事件，请使用ContextRefreshedEvent.

ContextStartedEvent is published when you explicitly invoke ConfigurableApplicationContext.start() on the context. If you need an event that is published when context is initialized, use ContextRefreshedEvent.

另请参见:

• 3.13.2标准事件和自定义事件

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