尝试将@Named添加到您的读者，处理器和作家类中，并删除src/main/resources/META-INF/batch.xml.这将使CDI能够像CDI bean那样发现批处理工件并执行依赖项注入.

Try adding @Named to your reader, processor and writer classes, and removing src/main/resources/META-INF/batch.xml. This will let CDI to discover batch artifacts as CDI beans and perform dependency injection.