我正在使用ClassifierCompositeItemWriter将不同类型的寄存器插入一个固定长度的平面文件中,并将其写入到 具有多个JdbcBatchItemWriters的postgres数据库,每个数据库位于一个不同的表中,所有这些都在一个步骤中,然后坚持执行春季批处理作业,它可以正常工作,但是在激活事务时,它们将在发生异常的情况下回滚。
例如,我有一个32行的平面文件,其中1行是标题记录,然后将其插入标题表中,然后有30条常规记录和1条页脚记录(按顺序),然后在29条记录中常规的它失败了,并带有数据库转换异常(为测试而创建的错误),然后以作业的失败状态结束,没关系,但是当我查看数据库时,我发现头的记录为1,常规数据的记录为29 (除了一个有错误的错误),并且没有页脚记录,但是我希望该事务回滚该记录中有1条记录为标头,其余29条记录,但是在异常回滚之后它们仍在数据库中。
我不知道我是否做错了,春季批处理中的事务无法正常工作,或者我的配置有误还是什么。
这是ClassifierCompositeItemWriter的代码,一个项目编写器的代码与此类似:
public ClassifierCompositeItemWriter<DTOBase> altasOffWriterClassifier(DataSource dataSource) {
BackToBackPatternClassifier classifier = new BackToBackPatternClassifier();
classifier.setRouterDelegate(dtoWriterClassifier);
classifier.setMatcherMap(new HashMap<String, JdbcBatchItemWriter<? extends DTOBase>>() {
private static final long serialVersionUID = -1247536568421993759L;
{
put(DTOHeader.class.getTypeName(), headerWriter());
put(DTOData.class.getTypeName(), dataWriter());
put(DTOFooter.class.getTypeName(), footerWriterFin());
}});
ClassifierCompositeItemWriter<DTOBase> writer = new ClassifierCompositeItemWriter<>();
writer.setClassifier(classifier);
return writer;
}
@Bean
public JdbcBatchItemWriter<DTOAltaOFF> altaOffWriter() {
return new JdbcBatchItemWriterBuilder<DTOData>()
.dataSource(dataSource)
.sql("insert into tabla(ticket, identificador, fecha_alta_operacion, "
+ " ordenante, numero, moneda, cif, importe_emisor, "
+ " estado, telefono_destino, fecha_caducidad_hal, concepto, cabecera_num_orden_fichero) "
+ " VALUES (:ticket,:identificador,to_timestamp(:fechaAltaOperacion,'DDMMYYYYHH24MISS'), "
+ " :ordenante,:numero,:moneda,:cif,(cast(:importeEmisor as double precision)/100), "
+ " :estado,:telefonoDestino,to_timestamp(:fechaCaducidadHal,'DDMMYYYYHH24MISS'),:concepto,:idCabecera) ")
.itemSqlParameterSourceProvider(new BeanPropertyItemSqlParameterSourceProvider<>())
.build();
}
我的配置类:
@Configuration
@EnableBatchProcessing
@Import({ DataSourceConfig.class })
@PropertySource("classpath:batch.properties")
@ComponentScan({ "..."})
public class BatchConfiguration {
@Autowired
public JobBuilderFactory jobBuilderFactory;
@Autowired
public StepBuilderFactory stepBuilderFactory;
@Autowired
public JobRepository jobRepository;
@Autowired
public DataSource dataSource;
@Bean
public JdbcTemplate getJdbcTemplate() {
return new JdbcTemplate(dataSource);
}
@Bean
public TaskExecutor taskExecutor() {
return new SimpleAsyncTaskExecutor();
}
数据源
@Configuration
@EnableTransactionManagement
public class DataSourceConfig {
...some @Value...
@Bean(name = "dataSource")
public DriverManagerDataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(driverClassName);
dataSource.setUrl(datasourceUrl);
dataSource.setUsername(usuario);
dataSource.setPassword(clave);
return dataSource;
}
}
配置:
@Configuration
@EnableBatchProcessing
@Import({ DataSourceConfig.class })
@PropertySource("classpath:batch.properties")
@ComponentScan({ "..."})
public class BatchConfiguration {
@Autowired
public JobBuilderFactory jobBuilderFactory;
@Autowired
public StepBuilderFactory stepBuilderFactory;
@Autowired
public JobRepository jobRepository;
@Autowired
public DataSource dataSource;
@Bean
public JdbcTemplate getJdbcTemplate() {
return new JdbcTemplate(dataSource);
}
@Bean
public TaskExecutor taskExecutor() {
return new SimpleAsyncTaskExecutor();
}
}
自定义:
@Component
@EnableTransactionManagement
public class CustomBatchConfigurer extends DefaultBatchConfigurer {
private final TaskExecutor taskExecutor;
public CustomBatchConfigurer(TaskExecutor taskExecutor) {
this.taskExecutor = taskExecutor;
}
@Override
protected JobLauncher createJobLauncher() throws Exception {
SimpleJobLauncher jobLauncher = new SimpleJobLauncher();
jobLauncher.setJobRepository(getJobRepository());
jobLauncher.setTaskExecutor(this.taskExecutor);
jobLauncher.afterPropertiesSet();
return jobLauncher;
}
@Autowired
private DataSource dataSource;
@Override
public PlatformTransactionManager getTransactionManager() {
DataSourceTransactionManager tm = new DataSourceTransactionManager();
tm.setDataSource(dataSource);
return tm;
}
}
任何帮助都会很棒。
答案 0 :(得分:0)
就像@MahmoudBenHassine在评论中所写的那样,它是块大小,我以这种方式添加了它
@Bean
public Step Step1(@Qualifier("xyzWriterClassifier") ItemWriter<DTOxyz> writer) throws Exception {
return stepBuilderFactory.get("Step1")
.<DTOxyz, DTOxyz> chunk(100)
.reader(dtoXyzItemReader(NULL because WILL_BE_INJECTED))
.processor(XyzProcessor())
.writer(writer)
.build();
}