Spring Integration @Transformer输入和输出

Question

我有一个@InboundChannelAdapter，它从文件系统读取文件，我应该将它们发送到Transformer，该Transformer会将文件从Message 转换为Message FileContent是我自己的课程

这是代码

@Bean
@InboundChannelAdapter(value = "importProcessChannel", poller = @Poller(fixedDelay = "1000"))
public MessageSource<File> importFileComparatorMessageSource() {
    FileReadingMessageSource source = new FileReadingMessageSource();
    source.setDirectory(new File("C:\\FileTest"));
    CompositeFileListFilter<File> filterList = new CompositeFileListFilter<File>();
    filterList.addFilter(new SimplePatternFileListFilter("*.txt"));
    source.setFilter(filterList);
    return source;
}

@Bean
@Transformer(inputChannel = "importProcessChannel" , outputChannel = "splitFileChannel")
public Message<Filecontent> handleImportFile(Message<File>importFileMsg) {

    Filecontent rows = null;
    Message<Filecontent> msf = null;
    return msf;
    }

启动应用程序时出现以下错误

Unsatisfied dependency expressed through method 'handleImportFile' parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.messaging.Message<java.io.File>' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}

有人可以帮我吗？ 非常感谢

Answer 1

从@Bean中删除@Transformer。