import org.springframework.batch.core.ItemProcessListener; //导入依赖的package包/类
@Before
public void setupMock() {
	when(taskletStep.getTasklet()).thenReturn(
			new ChunkOrientedTasklet(chunkProvider, chunkProcessor));
	when(taskletStep.getName()).thenReturn("FOOOBAR");

	registerAlias(ItemProcessListener.class, BatchEventAutoConfiguration.ITEM_PROCESS_EVENTS_LISTENER);
	registerAlias(StepExecutionListener.class, BatchEventAutoConfiguration.STEP_EXECUTION_EVENTS_LISTENER);
	registerAlias(ChunkListener.class, BatchEventAutoConfiguration.CHUNK_EVENTS_LISTENER);
	registerAlias(ItemReadListener.class, BatchEventAutoConfiguration.ITEM_READ_EVENTS_LISTENER);
	registerAlias(ItemWriteListener.class, BatchEventAutoConfiguration.ITEM_WRITE_EVENTS_LISTENER);
	registerAlias(SkipListener.class, BatchEventAutoConfiguration.SKIP_EVENTS_LISTENER);
}
 

import org.springframework.batch.core.ItemProcessListener; //导入依赖的package包/类
@Bean
@ConditionalOnProperty(prefix = "spring.cloud.task.batch.events.item-process", name = "enabled", havingValue = "true", matchIfMissing = true)
public ItemProcessListener itemProcessEventsListener() {
	return new EventEmittingItemProcessListener(listenerChannels.itemProcessEvents(),taskEventProperties.getItemProcessOrder());
}
 

import org.springframework.batch.core.ItemProcessListener; //导入依赖的package包/类
private void registerItemProcessEvents(SimpleChunkProcessor chunkProcessor) {
	if(this.applicationContext.containsBean(BatchEventAutoConfiguration.ITEM_PROCESS_EVENTS_LISTENER)) {
		chunkProcessor.registerListener((ItemProcessListener) this.applicationContext.getBean(BatchEventAutoConfiguration.ITEM_PROCESS_EVENTS_LISTENER));
	}
}