[英]FlatFileItemReader using FixedLengthTokenizer not working
我在SpringBatch中做一个示例，使用带有FixedLengthTokenizer的FlatFileItemReader从文本文件读取并保存到xml文件。 我收到一个错误：Bean属性“ fixedLengthTokenizer”不可写或具有无效的setter方法。 setter的参数类型是否与getter的返回类型匹配？ （我将放孔控制台日志）。 感谢您的任何帮助 。 配置文件：spring-batch-context.xml：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:batch="http://www.springframework.org/schema/batch"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation=" http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/batch
http://www.springframework.org/schema/batch/spring-batch-3.0.xsd">
<bean id="dataSource1" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.OracleDriver"></property>
<property name="url" value="********"></property>
<property name="password" value="*****"></property>
<property name="username" value="******"></property>
</bean>
<bean id="dataSource2" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.OracleDriver"></property>
<property name="url" value="*******"></property>
<property name="password" value="*****"></property>
<property name="username" value="*****"></property>
</bean>
<bean id="flatFileItemReader" class="org.springframework.batch.item.file.FlatFileItemReader" scope="step">
<property name="resource" value="txt/flatfile" />
<property name="lineMapper">
<bean class="org.springframework.batch.item.file.mapping.DefaultLineMapper">
<property name="fieldSetMapper">
<bean class="artifact1.StudentFieldSetMapper" />
</property>
<property name="fixedLengthTokenizer">
<bean class="org.springframework.batch.item.file.transform.FixedLengthTokenizer">
<property name="names" value="fisrtName,id, phone,lastName ,streetName,age,city, date_of_birth,quantity,sin ,code"></property>
<property name="columns" value="1-4,6-9,10-13,15-18,19-22,23-26,27-31,33-40,45-47,48-53,55-55"></property>
</bean>
</property>
</bean>
</property>
</bean>
<bean id="xmlItemWriter" class="org.springframework.batch.item.xml.StaxEventItemWriter">
<property name="resource" value="file:xml/etudiant.xml" />
<property name="rootTagName" value="Student" />
<property name="marshaller">
<bean class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
<property name="classesToBeBound">
<list>
<value>artifact1.ExamResult</value>
</list>
</property>
</bean>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.batch.support.transaction.ResourcelessTransactionManager" />
<batch:job id="examResultJob">
<batch:step id="step105" >
<batch:tasklet transaction-manager="transactionManager">
<batch:chunk reader="flatFileItemReader" writer="xmlItemWriter" commit-interval="2" />
</batch:tasklet>
</batch:step>
</batch:job>
<bean id="jobRepository" class="org.springframework.batch.core.repository.support.JobRepositoryFactoryBean">
<property name="dataSource" ref="dataSource2"></property>
<property name="transactionManager" ref="transactionManager"></property>
<property name="databaseType" value="oracle"></property>
</bean >
<bean id="jobLauncher" class="org.springframework.batch.core.launch.support.SimpleJobLauncher">
<property name="jobRepository" ref="jobRepository"> </property>
</bean>
</beans>
main.java：
package artifact1;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobExecutionException;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.JobParametersBuilder;
import org.springframework.batch.core.JobParametersInvalidException;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.core.repository.JobExecutionAlreadyRunningException;
import org.springframework.batch.core.repository.JobInstanceAlreadyCompleteException;
import org.springframework.batch.core.repository.JobRestartException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Main1
{
public static void main (String[] args)
{
ApplicationContext context=new ClassPathXmlApplicationContext("spring/batch/spring-batch-context.xml");
JobLauncher jobLuncher= (JobLauncher) context.getBean("jobLauncher");
Job job=(Job) context.getBean("examResultJob");
try
{
JobExecution jobExecution=jobLuncher.run(job, new JobParameters());
System.out.println("job completed :"+jobExecution.getStatus());
}
catch (JobExecutionException e)
{
System.out.println("job failed :");
e.printStackTrace();
}
}
}
Student.java POJO：
package artifact1;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name="etud")
public class Student
{
String fisrtName;
Integer id;
Integer phone;
String lastName;
String streetName;
Integer age;
String city;
String date_of_birth;
Integer quantity;
Integer sin;
Short code;
@XmlElement(name= "prenom")
public String getFisrtName()
{
return fisrtName;
}
public void setFisrtName(String fisrtName)
{
this.fisrtName = fisrtName;
}
@XmlElement(name= "idd")
public Integer getId()
{
return id;
}
public void setId(Integer id)
{
this.id = id;
}
@XmlElement(name= "tel")
public Integer getPhone()
{
return phone;
}
public void setPhone(Integer phone)
{
this.phone = phone;
}
@XmlElement(name= "nom")
public String getLastName()
{
return lastName;
}
public void setLastName(String lastName)
{
this.lastName = lastName;
}
@XmlElement(name= "trig")
public String getStreetName()
{
return streetName;
}
public void setStreetName(String streetName)
{
this.streetName = streetName;
}
@XmlElement(name= "age")
public Integer getAge()
{
return age;
}
public void setAge(Integer age)
{
this.age = age;
}
@XmlElement(name= "ville")
public String getCity()
{
return city;
}
public void setCity(String city)
{
this.city = city;
}
@XmlElement(name= "datenaiss")
public String getDate_of_birth()
{
return date_of_birth;
}
public void setDate_of_birth(String date_of_birth)
{
this.date_of_birth = date_of_birth;
}
@XmlElement(name= "quant")
public Integer getQuantity()
{
return quantity;
}
public void setQuantity(Integer quantity)
{
this.quantity = quantity;
}
@XmlElement(name= "sin")
public Integer getSin()
{
return sin;
}
public void setSin(Integer sin)
{
this.sin = sin;
}
@XmlElement(name= "cd")
public Short getCode()
{
return code;
}
public void setCode(Short code)
{
this.code = code;
}
@Override
public String toString()
{
return "Student [fisrtName=" + fisrtName + ", id=" + id + ", phone=" + phone + ", lastName="
+ lastName + ", streetName=" + streetName + ", age=" + age + ", city=" + city
+ ", date_of_birth=" + date_of_birth + ", quantity=" + quantity + ", sin=" + sin + ", code="
+ code + "]";
}
}
StudentFieldSetMapper：
package artifact1;
import org.springframework.batch.item.file.mapping.FieldSetMapper;
import org.springframework.batch.item.file.transform.FieldSet;
import org.springframework.validation.BindException;
public class StudentFieldSetMapper implements FieldSetMapper<Student>
{
public Student mapFieldSet(FieldSet fs) throws BindException
{
System.out.println("inside StudentFieldSetMapper");
Student et=new Student();
et.setFisrtName(fs.readString(0));
et.setId(fs.readInt(1));
et.setPhone(fs.readInt(2));
et.setLastName(fs.readString(3));
et.setStreetName(fs.readString(4));
et.setAge(fs.readInt(5));
et.setCity(fs.readString(6));
et.setDate_of_birth(fs.readString(7));
et.setQuantity(fs.readInt(8));
et.setSin(fs.readInt(9));
et.setCode(fs.readShort(10));
return et;
}
}
日志控制台：
2018-10-26 13:56:42 ERROR org.springframework.batch.core.step.AbstractStep:229 - Encountered an error executing step ste
p105 in job examResultJob
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.flatFileItemReader'
defined in class path resource [spring/batch/spring-batch-context.xml]: Cannot create inner bean 'org.springframework.b
atch.item.file.mapping.DefaultLineMapper#184f6be2' of type [org.springframework.batch.item.file.mapping.DefaultLineMappe
r] while setting bean property 'lineMapper'; nested exception is org.springframework.beans.factory.BeanCreationException
: Error creating bean with name 'org.springframework.batch.item.file.mapping.DefaultLineMapper#184f6be2' defined in clas
s path resource [spring/batch/spring-batch-context.xml]: Error setting property values; nested exception is org.springfr
amework.beans.NotWritablePropertyException: Invalid property 'fixedLengthTokenizer' of bean class [org.springframework.b
atch.item.file.mapping.DefaultLineMapper]: Bean property 'fixedLengthTokenizer' is not writable or has an invalid setter
method. Does the parameter type of the setter match the return type of the getter?
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.j
ava:313)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueRes
olver.java:122)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCap
ableBeanFactory.java:1531)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBea
nFactory.java:1276)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBea
nFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanF
actory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$2.getObject(AbstractBeanFactory.java:345)
at org.springframework.batch.core.scope.StepScope.get(StepScope.java:113)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:340)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:192)
at com.sun.proxy.$Proxy3.open(Unknown Source)
at org.springframework.batch.item.support.CompositeItemStream.open(CompositeItemStream.java:96)
at org.springframework.batch.core.step.tasklet.TaskletStep.open(TaskletStep.java:310)
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:197)
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148)
at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:64)
at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:67)
at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:169)
at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:144)
at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:134)
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:306)
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 artifact1.Main1.main(Main1.java:27)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.b
atch.item.file.mapping.DefaultLineMapper#184f6be2' defined in class path resource [spring/batch/spring-batch-context.xml
]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid pr
operty 'fixedLengthTokenizer' of bean class [org.springframework.batch.item.file.mapping.DefaultLineMapper]: Bean proper
ty 'fixedLengthTokenizer' is not writable or has an invalid setter method. Does the parameter type of the setter match t
he return type of the getter?
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCap
ableBeanFactory.java:1568)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBea
nFactory.java:1276)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBea
nFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanF
actory.java:483)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.j
ava:299)
... 26 more
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'fixedLengthTokenizer' of bean class
[org.springframework.batch.item.file.mapping.DefaultLineMapper]: Bean property 'fixedLengthTokenizer' is not writable o
r has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
at org.springframework.beans.BeanWrapperImpl.createNotWritablePropertyException(BeanWrapperImpl.java:243)
at org.springframework.beans.AbstractNestablePropertyAccessor.processLocalProperty(AbstractNestablePropertyAccessor.jav
a:435)
at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:29
0)
at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:27
8)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:95)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:75)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCap
ableBeanFactory.java:1564)
... 30 more
2018-10-26 13:56:42 ERROR org.springframework.batch.core.step.AbstractStep:274 - Exception while closing step execution
resources in step step105 in job examResultJob
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.flatFileItemReader'
defined in class path resource [spring/batch/spring-batch-context.xml]: Cannot create inner bean 'org.springframework.b
atch.item.file.mapping.DefaultLineMapper#184f6be2' of type [org.springframework.batch.item.file.mapping.DefaultLineMappe
r] while setting bean property 'lineMapper'; nested exception is org.springframework.beans.factory.BeanCreationException
: Error creating bean with name 'org.springframework.batch.item.file.mapping.DefaultLineMapper#184f6be2' defined in clas
s path resource [spring/batch/spring-batch-context.xml]: Error setting property values; nested exception is org.springfr
amework.beans.NotWritablePropertyException: Invalid property 'fixedLengthTokenizer' of bean class [org.springframework.b
atch.item.file.mapping.DefaultLineMapper]: Bean property 'fixedLengthTokenizer' is not writable or has an invalid setter
method. Does the parameter type of the setter match the return type of the getter?
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.j
ava:313)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueRes
olver.java:122)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCap
ableBeanFactory.java:1531)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBea
nFactory.java:1276)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBea
nFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanF
actory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$2.getObject(AbstractBeanFactory.java:345)
at org.springframework.batch.core.scope.StepScope.get(StepScope.java:113)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:340)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:192)
at com.sun.proxy.$Proxy3.close(Unknown Source)
at org.springframework.batch.item.support.CompositeItemStream.close(CompositeItemStream.java:85)
at org.springframework.batch.core.step.tasklet.TaskletStep.close(TaskletStep.java:305)
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:271)
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148)
at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:64)
at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:67)
at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:169)
at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:144)
at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:134)
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:306)
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 artifact1.Main1.main(Main1.java:27)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.b
atch.item.file.mapping.DefaultLineMapper#184f6be2' defined in class path resource [spring/batch/spring-batch-context.xml
]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid pr
operty 'fixedLengthTokenizer' of bean class [org.springframework.batch.item.file.mapping.DefaultLineMapper]: Bean proper
ty 'fixedLengthTokenizer' is not writable or has an invalid setter method. Does the parameter type of the setter match t
he return type of the getter?
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCap
ableBeanFactory.java:1568)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBea
nFactory.java:1276)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBea
nFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanF
actory.java:483)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.j
ava:299)
... 26 more
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'fixedLengthTokenizer' of bean class
[org.springframework.batch.item.file.mapping.DefaultLineMapper]: Bean property 'fixedLengthTokenizer' is not writable o
r has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
at org.springframework.beans.BeanWrapperImpl.createNotWritablePropertyException(BeanWrapperImpl.java:243)
at org.springframework.beans.AbstractNestablePropertyAccessor.processLocalProperty(AbstractNestablePropertyAccessor.jav
a:435)
at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:29
0)
at org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:27
8)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:95)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:75)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCap
ableBeanFactory.java:1564)
... 30 more
job completed :FAILED
在配置spring bach文件中：spring-batch-context.xml：我改变了这个：
<property name="fixedLengthTokenizer">
<bean class="org.springframework.batch.item.file.transform.FixedLengthTokenizer">
<property name="names" value="fisrtName,id, phone,lastName ,streetName,age,city, date_of_birth,quantity,sin ,code"></property>
<property name="columns" value="1-4,6-9,10-13,15-18,19-22,23-26,27-31,33-40,45-47,48-53,55-55"></property>
</bean>
</property>
至 ：
<property name="lineTokenizer">
<bean class="org.springframework.batch.item.file.transform.FixedLengthTokenizer">
<property name="names" value="fisrtName,id, phone,lastName ,streetName,age,city, date_of_birth,quantity,sin ,code"></property>
<property name="columns" value="1-4,6-9,10-13,15-18,19-22,23-26,27-31,33-40,45-47,48-53,55-55"></property>
</bean>
</property>
工作正常。
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