在Spring Batch中,可以通过配置来控制不将元数据持久化。以下是一种解决方法,其中包含代码示例:
JobRepository
的MapJobRepositoryFactoryBean
来禁用元数据的持久化。MapJobRepositoryFactoryBean
是一个内存中的存储库,不会将元数据持久化到数据库。XML配置示例:
JavaConfig配置示例:
@Configuration
@EnableBatchProcessing
public class BatchConfiguration {
@Autowired
private JobBuilderFactory jobBuilderFactory;
@Autowired
private StepBuilderFactory stepBuilderFactory;
@Bean
public JobRepository jobRepository(DataSource dataSource, PlatformTransactionManager transactionManager) throws Exception {
MapJobRepositoryFactoryBean factory = new MapJobRepositoryFactoryBean(transactionManager);
factory.afterPropertiesSet();
return factory.getObject();
}
// 其他配置...
}
JobRepository
的JobRepositorySupport
的setTablePrefix
方法来更改表名的前缀。JavaConfig配置示例:
@Configuration
@EnableBatchProcessing
public class BatchConfiguration {
@Autowired
private JobBuilderFactory jobBuilderFactory;
@Autowired
private StepBuilderFactory stepBuilderFactory;
@Autowired
private DataSource dataSource;
@Autowired
private PlatformTransactionManager transactionManager;
@Bean
public JobRepository jobRepository() throws Exception {
JobRepositoryFactoryBean factory = new JobRepositoryFactoryBean();
factory.setDataSource(dataSource);
factory.setTransactionManager(transactionManager);
factory.setTablePrefix("MY_PREFIX_"); // 设置表名前缀
factory.afterPropertiesSet();
return factory.getObject();
}
// 其他配置...
}
这样配置后,Spring Batch将使用以MY_PREFIX_
开头的表名作为元数据表的名称,而不是默认的表名。