我正在尝试设置一个ResourcelessTransactionManager使用Java配置使用事务管理器的Spring
Boot批处理项目，但是我没有运气。

我尝试执行此操作的原因是我不希望任何状态持续存在，并且如果我不希望hsqldb以其开头，则我不希望浪费其内存。我有一个现有的Spring
Batch项目，它不使用Spring Boot，并且没有持久性，也没有hsqldb。

我使用此示例项目作为基础（但删除了hsqldb），并以其他答案作为参考，但我不断收到此异常：

Caused by: org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
    at org.springframework.boot.autoconfigure.jdbc.DataSourceProperties.determineDriverClassName(DataSourceProperties.java:218) ~[spring-boot-autoconfigure-1.4.0.RELEASE.jar:1.4.0.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration.createDataSource(DataSourceConfiguration.java:42) ~[spring-boot-autoconfigure-1.4.0.RELEASE.jar:1.4.0.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Tomcat.dataSource(DataSourceConfiguration.java:55) ~[spring-boot-autoconfigure-1.4.0.RELEASE.jar:1.4.0.RELEASE]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_73]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_73]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_73]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_73]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.2.RELEASE.jar:4.3.2.RELEASE]
    ... 56 common frames omitted

这是我修改的内容：

@SpringBootApplication
@EnableBatchProcessing
@Configuration
public class SampleBatchApplication {

    @Autowired
    private JobBuilderFactory jobs;

    @Autowired
    private StepBuilderFactory steps;

    @Bean
    protected Tasklet tasklet() {

        return new Tasklet() {
            @Override
            public RepeatStatus execute(StepContribution contribution,
                    ChunkContext context) {
                return RepeatStatus.FINISHED;
            }
        };

    }

    @Bean
    public Job job() throws Exception {
        return this.jobs.get("job").start(step1()).build();
    }

    @Bean
    protected Step step1() throws Exception {
        return this.steps.get("step1").tasklet(tasklet()).build();
    }


    public static void main(String[] args) throws Exception {
        // System.exit is common for Batch applications since the exit code can be used to
        // drive a workflow
        System.exit(SpringApplication
                .exit(SpringApplication.run(SampleBatchApplication.class, args)));
    }

    @Bean
    ResourcelessTransactionManager transactionManager() {
        return new ResourcelessTransactionManager();
    }

    @Bean
    public JobRepository getJobRepo() throws Exception {
        return new MapJobRepositoryFactoryBean(transactionManager()).getObject();
    }

}

我需要做什么才能使其使用ResourcelessTransactionManager？

编辑：增加了为什么我希望ResourcelessTransactionManager工作的清晰度。