类分层结构
- java.lang.Object
- org.springframework.batch.sample.domain.mail.internal.TestMailErrorHandler (implements org.springframework.batch.item.mail.MailErrorHandler)
- org.springframework.batch.sample.domain.mail.internal.TestMailSender (implements org.springframework.mail.MailSender)
- org.springframework.batch.sample.domain.mail.internal.UserMailItemProcessor (implements org.springframework.batch.item.ItemProcessor<I,O>)