带有两个数据源的Spring Boot Batch导致javax.persistence.TransactionRequiredException:执行更新/删除查询

@Configuration
@EnableBatchProcessing
public class BatchConfig {

    @Autowired
    private JobBuilderFactory jobBuilderFactory;

    @Autowired
    private StepBuilderFactory stepBuilderFactory;

    @Autowired
    @Qualifier("firstDataSource")
    private DataSource firstDataSource;

    @Autowired
    @Qualifier("secondDataSource")
    private DataSource secondDataSource;

    @Autowired
    private PlatformTransactionManager firstTransactionManager;

    @Autowired
    private PlatformTransactionManager secondTransactionManager;

    @Bean
    public Job myJob() {
        return jobBuilderFactory.get("myJob")
                .start(myStep())
                .build();
    }

    @Bean
    public Step myStep() {
        return stepBuilderFactory.get("myStep")
                .<MyEntity, MyEntity>chunk(10)
                .reader(myReader())
                .processor(myProcessor())
                .writer(myWriter())
                .build();
    }

    @Bean
    public ItemReader<MyEntity> myReader() {
        // Configure reader with firstDataSource
    }

    @Bean
    public ItemProcessor<MyEntity, MyEntity> myProcessor() {
        // Configure processor with firstDataSource
    }

    @Bean
    public ItemWriter<MyEntity> myWriter() {
        // Configure writer with secondDataSource
    }

    @Bean
    @Qualifier("firstDataSource")
    public DataSource firstDataSource() {
        // Configure firstDataSource
    }

    @Bean
    @Qualifier("secondDataSource")
    public DataSource secondDataSource() {
        // Configure secondDataSource
    }

    @Bean
    @Qualifier("firstTransactionManager")
    public PlatformTransactionManager firstTransactionManager() {
        return new DataSourceTransactionManager(firstDataSource);
    }

    @Bean
    @Qualifier("secondTransactionManager")
    public PlatformTransactionManager secondTransactionManager() {
        return new DataSourceTransactionManager(secondDataSource);
    }
}