在嵌入式數據庫中為Spring Batch創建元數據表

Question

我正在使用帶有@EnableBatchProcessing Spring Boot自動配置的Spring Batch設置。 問題在於它在主數據庫中創建了元數據表，我不希望出現這種情況。 我想將所有Spring Batch信息保存到嵌入式數據庫中。

我嘗試使用spring.batch.initialize-schema=embedded屬性並將H2添加到類路徑中，用H2數據源覆蓋DefaultBatchConfigurer bean，替換JobRepository和JobLauncher bean，但它會在主Oracle數據庫中不斷創建元數據表。 我正在使用Spring Batch 3.0.8和Spring Boot 1.5.9。

任何幫助表示贊賞，謝謝！

更新 ：添加來配置：

H2配置：

@Bean
public DataSource springBatchDataSource() {
    DriverManagerDataSource dataSource = new DriverManagerDataSource();
    dataSource.setDriverClassName("org.h2.Driver");
    dataSource.setUrl("jdbc:h2:mem:db;DB_CLOSE_DELAY=-1");
    dataSource.setUsername("sa");
    dataSource.setPassword("sa");

    return dataSource;
}

甲骨文：

@Bean
@Primary
public DataSource dataSource() throws SQLException {
    PoolDataSourceImpl dataSource = new PoolDataSourceImpl();
    dataSource.setConnectionFactoryClassName(environment.getRequiredProperty("db.driverClassName"));
    dataSource.setURL(environment.getRequiredProperty("db.url"));
    dataSource.setUser(environment.getRequiredProperty("db.username"));
    dataSource.setPassword(environment.getRequiredProperty("db.password"));
    dataSource.setFastConnectionFailoverEnabled(Boolean.valueOf(environment
            .getRequiredProperty("db.fast.connect.failover.enabled")));
    dataSource.setValidateConnectionOnBorrow(true);
    dataSource.setSQLForValidateConnection("SELECT SYSDATE FROM DUAL");
    dataSource.setONSConfiguration(environment.getRequiredProperty("db.ons.config"));
    dataSource.setInitialPoolSize(Integer.valueOf(environment.getRequiredProperty("db.initial.pool.size")));
    dataSource.setMinPoolSize(Integer.valueOf(environment.getRequiredProperty("db.min.pool.size")));
    dataSource.setMaxPoolSize(Integer.valueOf(environment.getRequiredProperty("db.max.pool.size")));
    dataSource.setAbandonedConnectionTimeout(120);
    dataSource.setInactiveConnectionTimeout(360);
    dataSource.setTimeToLiveConnectionTimeout(0);

    return dataSource;
}

批量配置：

@Configuration
@EnableBatchProcessing
public class BatchConfigurer extends DefaultBatchConfigurer {

    @Override
    @Autowired
    public void setDataSource(@Qualifier("springBatchDataSource") DataSource dataSource) {
        super.setDataSource(dataSource);
    }

}

和一些相關的屬性

spring:
  batch:
    job.enabled: false

Answer 1

1.重新定義BasicBatchConfigurer

2.在spring-boot-batch-starter中，您必須創建自己的BatchDataSourceInitializer ，以便它將執行init sql腳本

@Configuration
public class MyBatchConfigurer {

    @Bean
    public BasicBatchConfigurer batchConfigurer(BatchProperties properties,
                @Qualifier("springBatchDataSource") DataSource dataSource,
                ObjectProvider<TransactionManagerCustomizers> transactionManagerCustomizers) {
            return new BasicBatchConfigurer(properties, dataSource,
                    transactionManagerCustomizers.getIfAvailable());
        }

    @Bean
    public BatchDataSourceInitializer batchDataSourceInitializer(@Qualifier("springBatchDataSource") DataSource dataSource,
            ResourceLoader resourceLoader, BatchProperties properties) {
        return new BatchDataSourceInitializer(dataSource, resourceLoader,
                properties);
    }
}

Answer 2

您需要限定H2數據源bean

  @Bean(name = "springBatchDataSource")
    public DataSource springBatchDataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName("org.h2.Driver");
        dataSource.setUrl("jdbc:h2:mem:db;DB_CLOSE_DELAY=-1");
        dataSource.setUsername("sa");
        dataSource.setPassword("sa");

        return dataSource;
    }

希望對您有所幫助。