Spring boot Spring批处理未从setTablePrefix获取表前缀_Spring Boot_Spring Batch

Spring boot Spring批处理未从setTablePrefix获取表前缀

spring-boot spring-batch

Spring boot Spring批处理未从setTablePrefix获取表前缀,spring-boot,spring-batch,Spring Boot,Spring Batch,我想为spring批处理使用一个不同的数据源，并创建了下面的配置类，并根据我使用的是SpringBoot（2.2.6）和SpringBatch版本4.2.1.0 @Configuration public class CustomBatchConfigurer extends DefaultBatchConfigurer { @Autowired @Qualifier("oracleDataSource") private DataSource da

我想为spring批处理使用一个不同的数据源，并创建了下面的配置类，并根据

我使用的是SpringBoot（2.2.6）和SpringBatch版本4.2.1.0

@Configuration
public class CustomBatchConfigurer extends DefaultBatchConfigurer {
    @Autowired
    @Qualifier("oracleDataSource")
    private DataSource dataSource;
    @Autowired
    private PlatformTransactionManager transactionManager;

    @Override
    protected JobRepository createJobRepository() throws Exception {
        JobRepositoryFactoryBean factory = new JobRepositoryFactoryBean();
        factory.setDataSource(dataSource);
        factory.setTransactionManager(transactionManager);
        factory.setIsolationLevelForCreate("ISOLATION_READ_COMMITTED");
        factory.setTablePrefix("MYDB.BATCH_");
        factory.setMaxVarCharLength(1000);
        factory.afterPropertiesSet();
        return factory.getObject();
    }
}

但是当我用这个启动我的应用程序时，它从不应用setTablePrefix，并且总是失败找不到表格错误。

我需要使用上面的方法，因为我有两个不同的数据源，我需要SpringBatch来使用我的oracleDataSource 豆子

如果我禁用非oracleDataSource bean并将属性移动到application.properties，一切都会正常工作

请指导如何解决此问题。我在这里看到了一个类似的问题，用户在扩展DefaultBatchConfigurer类后抱怨同一个表未找到问题

调试spring批处理源代码后，我发现在创建jobExplorer时，表前缀被重置。有效的修复方法如下所示

   
@Configuration
public class CustomBatchConfigurer extends DefaultBatchConfigurer {

    @Autowired
    @Qualifier("oracleDataSource")
    private DataSource dataSource;
    @Autowired
    private PlatformTransactionManager transactionManager;
   
   @Override
    protected JobRepository createJobRepository() throws Exception {
        JobRepositoryFactoryBean factory = new JobRepositoryFactoryBean();
        factory.setDataSource(dataSource);
        factory.setTransactionManager(transactionManager);
        factory.setIsolationLevelForCreate("ISOLATION_READ_COMMITTED");
        factory.setTablePrefix("MYDB.BATCH_");
        factory.setMaxVarCharLength(1000);
        factory.afterPropertiesSet();
        return factory.getObject();
    }

    @Override
    protected JobLauncher createJobLauncher() throws Exception {
        SimpleJobLauncher jobLauncher = new SimpleJobLauncher();
        jobLauncher.setJobRepository(createJobRepository());
        jobLauncher.afterPropertiesSet();
        return jobLauncher;
    }

    @Override
    protected JobExplorer createJobExplorer() throws Exception {
        JobExplorerFactoryBean jobExplorerFactoryBean = new JobExplorerFactoryBean();
        jobExplorerFactoryBean.setDataSource(this.dataSource);
        jobExplorerFactoryBean.setTablePrefix("MYDB.BATCH_");
        jobExplorerFactoryBean.afterPropertiesSet();
        return jobExplorerFactoryBean.getObject();
    }
    }

我认为这应该在spring批处理文档中提到，因为jobExplorer是常用的，如果没有按如下所示正确重写，可以将表前缀重置回batch_uu

   
@Configuration
public class CustomBatchConfigurer extends DefaultBatchConfigurer {

    @Autowired
    @Qualifier("oracleDataSource")
    private DataSource dataSource;
    @Autowired
    private PlatformTransactionManager transactionManager;
   
   @Override
    protected JobRepository createJobRepository() throws Exception {
        JobRepositoryFactoryBean factory = new JobRepositoryFactoryBean();
        factory.setDataSource(dataSource);
        factory.setTransactionManager(transactionManager);
        factory.setIsolationLevelForCreate("ISOLATION_READ_COMMITTED");
        factory.setTablePrefix("MYDB.BATCH_");
        factory.setMaxVarCharLength(1000);
        factory.afterPropertiesSet();
        return factory.getObject();
    }

    @Override
    protected JobLauncher createJobLauncher() throws Exception {
        SimpleJobLauncher jobLauncher = new SimpleJobLauncher();
        jobLauncher.setJobRepository(createJobRepository());
        jobLauncher.afterPropertiesSet();
        return jobLauncher;
    }

    @Override
    protected JobExplorer createJobExplorer() throws Exception {
        JobExplorerFactoryBean jobExplorerFactoryBean = new JobExplorerFactoryBean();
        jobExplorerFactoryBean.setDataSource(this.dataSource);
        jobExplorerFactoryBean.setTablePrefix("MYDB.BATCH_");
        jobExplorerFactoryBean.afterPropertiesSet();
        return jobExplorerFactoryBean.getObject();
    }
    }

调试spring批处理源代码后，我发现在创建jobExplorer时，表前缀被重置。有效的修复方法如下所示

   
@Configuration
public class CustomBatchConfigurer extends DefaultBatchConfigurer {

    @Autowired
    @Qualifier("oracleDataSource")
    private DataSource dataSource;
    @Autowired
    private PlatformTransactionManager transactionManager;
   
   @Override
    protected JobRepository createJobRepository() throws Exception {
        JobRepositoryFactoryBean factory = new JobRepositoryFactoryBean();
        factory.setDataSource(dataSource);
        factory.setTransactionManager(transactionManager);
        factory.setIsolationLevelForCreate("ISOLATION_READ_COMMITTED");
        factory.setTablePrefix("MYDB.BATCH_");
        factory.setMaxVarCharLength(1000);
        factory.afterPropertiesSet();
        return factory.getObject();
    }

    @Override
    protected JobLauncher createJobLauncher() throws Exception {
        SimpleJobLauncher jobLauncher = new SimpleJobLauncher();
        jobLauncher.setJobRepository(createJobRepository());
        jobLauncher.afterPropertiesSet();
        return jobLauncher;
    }

    @Override
    protected JobExplorer createJobExplorer() throws Exception {
        JobExplorerFactoryBean jobExplorerFactoryBean = new JobExplorerFactoryBean();
        jobExplorerFactoryBean.setDataSource(this.dataSource);
        jobExplorerFactoryBean.setTablePrefix("MYDB.BATCH_");
        jobExplorerFactoryBean.afterPropertiesSet();
        return jobExplorerFactoryBean.getObject();
    }
    }

我认为这应该在spring批处理文档中提到，因为jobExplorer是常用的，如果没有按如下所示正确重写，可以将表前缀重置回batch_uu

   
@Configuration
public class CustomBatchConfigurer extends DefaultBatchConfigurer {

    @Autowired
    @Qualifier("oracleDataSource")
    private DataSource dataSource;
    @Autowired
    private PlatformTransactionManager transactionManager;
   
   @Override
    protected JobRepository createJobRepository() throws Exception {
        JobRepositoryFactoryBean factory = new JobRepositoryFactoryBean();
        factory.setDataSource(dataSource);
        factory.setTransactionManager(transactionManager);
        factory.setIsolationLevelForCreate("ISOLATION_READ_COMMITTED");
        factory.setTablePrefix("MYDB.BATCH_");
        factory.setMaxVarCharLength(1000);
        factory.afterPropertiesSet();
        return factory.getObject();
    }

    @Override
    protected JobLauncher createJobLauncher() throws Exception {
        SimpleJobLauncher jobLauncher = new SimpleJobLauncher();
        jobLauncher.setJobRepository(createJobRepository());
        jobLauncher.afterPropertiesSet();
        return jobLauncher;
    }

    @Override
    protected JobExplorer createJobExplorer() throws Exception {
        JobExplorerFactoryBean jobExplorerFactoryBean = new JobExplorerFactoryBean();
        jobExplorerFactoryBean.setDataSource(this.dataSource);
        jobExplorerFactoryBean.setTablePrefix("MYDB.BATCH_");
        jobExplorerFactoryBean.afterPropertiesSet();
        return jobExplorerFactoryBean.getObject();
    }
    }

在您的回答中，您说，

我发现在创建jobExplorer时，表前缀被重置[…]我认为这应该在spring批处理文档中提到：不，前缀没有重置或覆盖。JobRepository
和JobExplorer
是不同的组件，有两个不同的工厂bean来创建它们，因此您需要在这两个工厂bean上设置前缀，如您在回答中所示。在回答中，您说我发现在创建JobExplorer[…]时，表前缀被重置我认为这应该在spring批处理文档中提到：不，前缀没有重置或覆盖。JobRepository
和JobExplorer
是不同的组件，有两个不同的工厂bean来创建它们，因此您需要在这两个工厂bean上设置前缀，如您在回答中所示。