java Spring Batch如何设置Chunk tasklet中每次调用之间的时间间隔
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Spring Batch How to set time interval between each call in a Chunk tasklet
提问by Abhilash
Team,
团队，
I am doing a technical poc for reading records from a flat file and inserting the data to database.
我正在做一个技术 poc，用于从平面文件读取记录并将数据插入数据库。
I am using chunk task and running this job using spring batch admin successfully.
我正在使用块任务并成功使用 spring 批处理管理运行此作业。
I have to implement the retry policy along with a feature to set the time interval between each retry. I am stuck up with setting the time interval between each retry as chuck doesn't support it directly. Is there any work around for this?
我必须实施重试策略以及设置每次重试之间的时间间隔的功能。我坚持设置每次重试之间的时间间隔，因为卡盘不直接支持它。有什么解决办法吗？
My code is
我的代码是
<batch:job id="importDataJob" job-repository="jobRepository">
<batch:step id="importDataStep">
<batch:tasklet transaction-manager="transactionManager">
<batch:chunk reader="dataReader" writer="dataWriter" commit-interval="1" retry-limit="3">
<batch:retryable-exception-classes>
<batch:include class="javax.naming.ServiceUnavailableException" />
</batch:retryable-exception-classes>
</batch:chunk>
</batch:tasklet>
</batch:step>
</batch:job>
采纳答案by dma_k
In your case the configuration will look like:
在您的情况下，配置将如下所示：
Spring Batch 2.x
Spring Batch 2.x
<bean id="stepParent" class="org.springframework.batch.core.step.item.FaultTolerantStepFactoryBean" abstract="true">
<property name="backOffPolicy">
<bean class="org.springframework.batch.retry.backoff.FixedBackOffPolicy"
<property name="backOffPeriod" value="2000" />
</bean>
</property>
</bean>
<batch:job id="importDataJob" job-repository="jobRepository">
<batch:step id="importDataStep" parent="stepParent">
...
</batch:step>
</batch:job>
Unfortunately, batchnamespace does not support setting backOffPolicydirectly to step, see BATCH-1441.
不幸的是，batch命名空间不支持backOffPolicy直接设置为step，请参阅BATCH-1441。
Spring Batch 3.0
春季批次 3.0
In Spring Batch 3.0 some classes have moved to other packages. This is the the configuration fragment:
在 Spring Batch 3.0 中，一些类已移至其他包。这是配置片段：
<bean id="stepParent"
class="org.springframework.batch.core.step.factory.FaultTolerantStepFactoryBean"
abstract="true">
<property name="backOffPolicy">
<bean class="org.springframework.retry.backoff.FixedBackOffPolicy">
<property name="backOffPeriod" value="2000"/>
</bean>
</property>
</bean>
