我正在尝试使用JSR 352和Websphere Liberty Profile 17.0.0.2创建一个简单的批处理应用程序。在进入异常处理之前,一切似乎都正常工作。我假设在' skippable-exception-classes'中指定的应用程序引发了异常。 job.xml中的节点将被略微忽略/跳过,并允许作业继续执行下一个项目/步骤。
我遇到的问题是在调用其中一个方法时从注入的bean(通过@Inject)抛出异常时发生的。作业只是在抛出异常的当前项/步骤上停止。
奇怪的是每当我手动/显式地抛出完全相同的异常时,让我们说RecordNotFoundException,这个工作继续进行,这是我的预期。只有从注入的bean触发异常时才会出现此问题。我已将@ApplicationException添加到异常类中,因此异常包装/解包已到位。
我错过了什么吗?这是Websphere Liberty的错误吗?
编辑:添加了简化代码
SampleSharedLibrary - 来自其他项目/ jar的依赖
package sample;
import javax.ejb.ApplicationException;
import javax.ejb.Stateless;
@Stateless
public class SampleSharedLibrary {
public String someMethod(String object) {
String result = null;
if(object != null) {
result = "OK";
} else {
throw new MyException();
}
return result;
}
@ApplicationException(rollback = true)
public static class MyException extends RuntimeException {
public MyException() {}
}
}
BatchExample应用程序
SampleWriter import sample.SampleSharedLibrary;
import javax.batch.api.chunk.AbstractItemWriter;
import javax.enterprise.context.Dependent;
import javax.inject.Inject;
import javax.inject.Named;
import java.util.List;
@Dependent
@Named("SampleWriter")
public class SampleWriter extends AbstractItemWriter{
@Inject
SampleSharedLibrary sharedLibrary;
public void writeItems(List<Object> list) throws Exception {
for(Object item : list) {
sharedLibrary.someMethod(item.toString());
}
}
}
SampleReader
import javax.batch.api.chunk.AbstractItemReader;
import javax.enterprise.context.Dependent;
import javax.inject.Named;
import java.io.Serializable;
@Dependent
@Named("SampleReader")
public class SampleReader extends AbstractItemReader {
String[] sample;
int index;
@Override
public void open(Serializable checkpoint) throws Exception {
sample = new String[]{"S1", null, "S3"};
index = 0;
}
public Object readItem() throws Exception {
Object item = null;
if(index < sample.length) {
item = sample[index];
index++;
}
return item;
}
}
job.xml
<job id="myJob" xmlns="http://xmlns.jcp.org/xml/ns/javaee" version="1.0">
<step id="myStep" >
<chunk item-count="1" skip-limit="50">
<reader ref="SampleReader"/>
<writer ref="SampleWriter"/>
<skippable-exception-classes>
<include class="java.lang.Exception"/>
<include class="sample.SampleSharedLibrary$MyException"/>
</skippable-exception-classes>
</chunk>
</step>
</job>
至于server.xml,没有添加太多配置,但我启用了以下功能:cdi-1.2,ejbLite-3.2,jaxrs-2.0,jpa-2.0,jsf-2.2,managedBeans-1.0,servlet-3.1 ,localConnector-1.0,batch-1.0和json-1.0
当遇到来自实际应用程序的错误时,我会得到类似下面的日志(必须将某些值更改为星号):
[02-11-17 21:38:12:323 CST] 000000d1 com.ibm.ws.logging.internal.impl.IncidentImpl I FFDC1015I: An FFDC Incident has been created: "*******.**********.*******.batchflows.service.writer.ErrorWhileUpdating: *******.**********.*******.infrastructure.*****.commands.OurCommand$RecordNotFound: recordId=31AA69FAE017D21F com.ibm.jbatch.container.controller.impl.ChunkStepControllerImpl 485" at ffdc_17.11.02_21.38.12.0.log
[02-11-17 21:38:12:352 CST] 000000d1 com.ibm.ws.logging.internal.impl.IncidentImpl I FFDC1015I: An FFDC Incident has been created: "com.ibm.jbatch.container.exception.BatchContainerRuntimeException: *******.**********.*******.batchflows.service.writer.ErrorWhileUpdating: *******.**********.*******.infrastructure.*****.commands.OurCommand$RecordNotFound: recordId=31AA69FAE017D21F com.ibm.jbatch.container.controller.impl.ChunkStepControllerImpl 1041" at ffdc_17.11.02_21.38.12.1.log
[02-11-17 21:38:12:363 CST] 000000d1 com.ibm.ws.logging.internal.impl.IncidentImpl I FFDC1015I: An FFDC Incident has been created: "javax.transaction.RollbackException com.ibm.jbatch.container.transaction.impl.JTAUserTransactionAdapter 107" at ffdc_17.11.02_21.38.12.2.log
[02-11-17 21:38:12:385 CST] 000000d1 com.ibm.ws.logging.internal.impl.IncidentImpl I FFDC1015I: An FFDC Incident has been created: "com.ibm.jbatch.container.exception.TransactionManagementException: javax.transaction.RollbackException com.ibm.jbatch.container.controller.impl.ChunkStepControllerImpl 680" at ffdc_17.11.02_21.38.12.3.log
答案 0 :(得分:1)
配置作业XML以跳过给定的异常只会阻止批处理容器将块事务标记为回滚。它不会阻止其他人将事务标记为回滚。
这意味着EJB容器本身可以回滚事务。所以在你的情况下你需要使用:
@ApplicationException(rollback = false)
public static class MyException extends RuntimeException {
或者,在预注释样式中,您需要使用已检查的异常而不是未经检查的异常,以防止EJB容器回滚事务。