Iam尝试使用StaxEventItemReader和Jaxb2Marshaller读取嵌套了xml节点的xml文件。我做错了什么导致异常的地方。
将在此处提供示例XML文件
File.xml
<File>
<FileDate>05/28/2016</FileDate>
<RecordCount>75</RecordCount>
<Transaction>
<RecordID>1</RecordID>
<MemberDetails>
<Id>A2334549</Id>
<MemberDemoData>
<SubID>89890734548557</SubID>
<MemberSuffix>01</MemberSuffix>
<SSN>XXXXX</SSN>
<CategoryCode>B</CategoryCode>
<Gender>F</Gender>
<LastName>Naaz</LastName>
<FirstName>Affu</FirstName>
<MiddleInitial>H</MiddleInitial>
<BirthDate>04/02/1990</BirthDate>
<HICNumber>4567376739A</HICNumber>
<PhoneNumber>894567893</PhoneNumber>
<ProviderID>09678546</ProviderID>
<PCPOverride>N</PCPOverride>
<Address>
<AddressType>HOME</AddressType>
<Address1>2226 Indira nagar RD</Address1>
<City>Noida</City>
<State>Delhi</State>
<Zip>525001</Zip>
<County>India</County>
</Address>
<Address>
<AddressType>MAIL</AddressType>
<Address1>2226 Indira nagar RD</Address1>
<City>Noida</City>
<State>Delhi</State>
<Zip>525001</Zip>
<County>India</County>
</Address>
<AgentInfo>
<MailAgentNo>40</MailAgentNo>
<AgentNo>67894</AgentNo>
</AgentInfo>
</MemberDemoData>
<Package>
<Plan>Yu8883</Plan>
<PlanId>009</PlanId>
<SegmentId>104</SegmentId>
<Group>000987666</Group>
<SubGroup>B004</SubGroup>
<Class>0004</Class>
<PartD>
<BIN>789034</BIN>
<PCN>*******</RxPCN>
</PartD>
<EffectiveDate>09/01/2016/01/2016</EffectiveDate>
<TerminationDate>12/31/2016</TerminationDate>
</Package>
<LICSInfo>
<SubsidyLevel>100</SubsidyLevel>
<CopayCategory>1</CopayCategory>
<SubsidyLevelStartDate>08/11/2016</SubsidyLevelStartDate>
</LICSInfo>
<MedihealthData>
<PartA>
<EffectiveDate>02/01/2008</EffectiveDate>
</PartA>
<PartB>
<EffectiveDate>02/01/2008</EffectiveDate>
</PartB>
<ESignDate>
<EffectiveDate>08/16/2016</EffectiveDate>
</ESignDate>
<ElectionPeriod>S</ElectionPeriod>
<EnrollmentDate>
<EffectiveDate>08/01/2016</EffectiveDate>
</EnrollmentDate>
</MedihealthData>
<BillingData>
<PremiumWithHold>D</PremiumWithHold>
</BillingData>
</MemberDetails>
</Transaction>
<Transaction>
-------
</Transaction>
<Transaction>
------
</Transaction>
<Transaction>
-------
</Transaction>
</File>
拥有Jaxb类 - ＆gt;文件，事务，MemberDetails，MemberDemoData，Address，AgentInfo，Package，PartD，LICSInfo，MedihealthData，PartA，PartB，ESignDate，EnrollmentDate，BillingData
样本类
File.java
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
"fileDate",
"recordCount",
"Transaction"
})
@XmlRootElement(name = "File")
class File{
@XmlElement(name = "FileDate", required = true)
protected String fileDate;
@XmlElement(name = "RecordCount", required = true)
protected String recordCount;
@XmlElement(name = "Transaction")
protected List<Transaction> transaction;
//setters and getters
}
其中File.java是所有xml元素的根类
文件中的重复元素是交易
Transaction.java
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
"recordID",
"memberDetails"
})
@XmlRootElement(name = "MPTransaction")
public class Transaction {
@XmlElement(name = "RecordID", required = true)
protected String recordID;
@XmlElement(name = "MemberDetails", required = true)
protected MemberDetails memberDetails;
// setter and getter
}
现在我在SpringBatch中编写了ItemReader方法
读取File.xml的ItemReader方法
@Bean
@StepScope
public ItemReader<File> fileXmlReader(@Value("#{stepExecution}") StepExecution stepExecution) {
StaxEventItemReader<File> xmlFileReader = new StaxEventItemReader<>();
xmlFileReader.setResource(new ClassPathResource("/File.xml"));
xmlFileReader.setFragmentRootElementNames(new String[] {"Transaction" , "MemberDetails" ,
"MemberDemoData", "Address" ,"AgentInfo","Package" , "PartD" ,"LICSInfo" , "MedihealthData",
"PartA", "PartB","ESignDate","EnrollmentDate","BillingData"} );
Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
marshaller.setClassesToBeBound(Transaction.class,MemberDetails.class,
MemberDemoData.class,Address.class,AgentInfo.class,Package.class,
PartD.class,LICSInfo.class,MedihealthData.class,PartA.class,PartB.class,
ESignDate.class,EnrollmentDate.class,BillingData.class);
xmlFileReader.setUnmarshaller(marshaller);
return xmlFileReader;
}
如果我运行我的Batch iam获得以下异常。请帮我确定哪里出错了？
java.lang.NullPointerException
at org.springframework.batch.item.xml.StaxEventItemReader.moveCursorToNextFragment(StaxEventItemReader.java:151)
at org.springframework.batch.item.xml.StaxEventItemReader.doRead(StaxEventItemReader.java:228)
at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.read(AbstractItemCountingItemStreamItemReader.java:88)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy34.read(Unknown Source)
at org.springframework.batch.core.step.item.SimpleChunkProvider.doRead(SimpleChunkProvider.java:91)
at org.springframework.batch.core.step.item.SimpleChunkProvider.read(SimpleChunkProvider.java:155)
at org.springframework.batch.core.step.item.SimpleChunkProvider$1.doInIteration(SimpleChunkProvider.java:114)
at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:368)
at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)
at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:144)
at org.springframework.batch.core.step.item.SimpleChunkProvider.provide(SimpleChunkProvider.java:108)
at org.springframework.batch.core.step.item.ChunkOrientedTasklet.execute(ChunkOrientedTasklet.java:69)
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:406)
at org.springframework.batch.core.step.tasklet.TaskletStep$ChunkTransactionCallback.doInTransaction(TaskletStep.java:330)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:271)
at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:77)
at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:368)
at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:215)
at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:144)
at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:257)
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:198)
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148)
at org.springframework.batch.core.job.AbstractJob.handleStep(AbstractJob.java:386)
at org.springframework.batch.core.job.SimpleJob.doExecute(SimpleJob.java:135)
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:304)
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:135)
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50)
at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:128)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy37.run(Unknown Source)
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.execute(JobLauncherCommandLineRunner.java:210)
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.executeLocalJobs(JobLauncherCommandLineRunner.java:227)
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.launchJobFromProperties(JobLauncherCommandLineRunner.java:121)
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.run(JobLauncherCommandLineRunner.java:115)
at org.springframework.boot.SpringApplication.runCommandLineRunners(SpringApplication.java:672)
at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:690)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:957)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:946)
at com.bcn.medicareEnrollment.Runner.main(Runner.java)
请帮我解决这个问题。我刚接触Spring批次。当我运行这个xml阅读器逻辑时，我得到了异常。