自定义 LineMapper 在 Spring 批量处理多个文件时抛出异常
Custom LineMapper throwing exception in Spring Batch multiple files process
我正在尝试实现自定义线映射器，以下是我的代码。
当我 运行 此代码出现异常时（也添加了异常）
在我的资源文件中，每行的分隔符可能不同。有些行的分隔符是'，'或'|'我想在 CustomLineMapper class 中处理。
工作-阅读-files.xml
<bean id="domain" class="com.di.pos.Domain" />
<job id="readMultiFileJob" xmlns="http://www.springframework.org/schema/batch">
<step id="step1">
<tasklet>
<chunk reader="multiResourceReader" writer="flatFileItemWriter"
commit-interval="1" />
<!-- <listeners> <listener ref="customItemReaderListener" /> </listeners> -->
</tasklet>
</step>
</job>
<bean id="multiResourceReader" class="org.springframework.batch.item.file.MultiResourceItemReader">
<property name="resources" value="file:csv/inputs/domain-*.csv" />
<property name="delegate" ref="flatFileItemReader" />
</bean>
<bean id="flatFileItemReader" class="org.springframework.batch.item.file.FlatFileItemReader">
<property name="lineMapper">
<!-- <bean class="org.springframework.batch.item.file.mapping.DefaultLineMapper">-->
<bean class="com.di.pos.CustomLineMapper">
<property name="lineTokenizer">
<bean
class="org.springframework.batch.item.file.transform.DelimitedLineTokenizer">
<property name="names" value="id, domain" />
</bean>
</property>
<property name="fieldSetMapper">
<bean
class="org.springframework.batch.item.file.mapping.BeanWrapperFieldSetMapper">
<property name="prototypeBeanName" value="domain" />
</bean>
</property>
</bean>
</property>
</bean>
和
CustomLineMapper.java
这里我改写了一些方法。
public class CustomLineMapper<T> extends DefaultLineMapper<T> {
public LineTokenizer lineTokenizer;
public FieldSetMapper<Domain> fieldSetMapper;
@Override
public T mapLine(String line, int lineNumber) throws Exception {
System.out.println("======" + line);
DelimitedLineTokenizer delimitedLineTokenizer = new DelimitedLineTokenizer();
if (line.indexOf("|") == -1) {
if (line.indexOf(",") == -1) {
} else {
delimitedLineTokenizer.setDelimiter(",");
}
} else {
delimitedLineTokenizer.setDelimiter("|");
}
setLineTokenizer(delimitedLineTokenizer);
return (T) this.fieldSetMapper.mapFieldSet(this.lineTokenizer.tokenize(line));
}
public LineTokenizer getLineTokenizer() {
return lineTokenizer;
}
public void setLineTokenizer(LineTokenizer lineTokenizer) {
this.lineTokenizer = lineTokenizer;
}
public FieldSetMapper<Domain> getFieldSetMapper() {
return fieldSetMapper;
}
@Override
public void setFieldSetMapper(FieldSetMapper<T> fieldSetMapper) {
super.setFieldSetMapper(fieldSetMapper);
}
}
当我执行这段代码时，出现以下异常。
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'step1': Cannot resolve reference to bean 'multiResourceReader' while setting bean property 'itemReader'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'multiResourceReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot resolve reference to bean 'flatFileItemReader' while setting bean property 'delegate'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flatFileItemReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot create inner bean 'com.di.pos.CustomLineMapper#3c50507' of type [com.di.pos.CustomLineMapper] while setting bean property 'lineMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.di.pos.CustomLineMapper#3c50507' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1393)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1134)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:608)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
at com.di.pos.App.run(App.java:23)
at com.di.pos.App.main(App.java:15)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'multiResourceReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot resolve reference to bean 'flatFileItemReader' while setting bean property 'delegate'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flatFileItemReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot create inner bean 'com.di.pos.CustomLineMapper#3c50507' of type [com.di.pos.CustomLineMapper] while setting bean property 'lineMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.di.pos.CustomLineMapper#3c50507' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1393)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1134)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323)
... 16 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flatFileItemReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot create inner bean 'com.di.pos.CustomLineMapper#3c50507' of type [com.di.pos.CustomLineMapper] while setting bean property 'lineMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.di.pos.CustomLineMapper#3c50507' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:282)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:121)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1393)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1134)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323)
... 26 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.di.pos.CustomLineMapper#3c50507' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1488)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:271)
... 36 more
Caused by: java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.util.Assert.notNull(Assert.java:112)
at org.springframework.batch.item.file.mapping.DefaultLineMapper.afterPropertiesSet(DefaultLineMapper.java:56)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1547)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1485)
... 39 more
谁能帮帮我？谢谢
试试这个：
@Override
public void setLineTokenizer(LineTokenizer lineTokenizer) {
super.setLineTokenizer(lineTokenizer);
this.lineTokenizer = lineTokenizer;
}
您需要像设置 fieldSetMapper 一样在超级 class 中设置 lineTokenizer。在 DefaultLineMapper 的 afterPropertiesSet 方法中，它正在检查它是否有 lineTokenizer，但它没有（不是超级 class 可以访问的） ).所以它抛出 IllegalArgumentException: 'The LineTokenizer must be set'.
我正在尝试实现自定义线映射器，以下是我的代码。
当我 运行 此代码出现异常时（也添加了异常）
在我的资源文件中，每行的分隔符可能不同。有些行的分隔符是'，'或'|'我想在 CustomLineMapper class 中处理。
工作-阅读-files.xml
<bean id="domain" class="com.di.pos.Domain" />
<job id="readMultiFileJob" xmlns="http://www.springframework.org/schema/batch">
<step id="step1">
<tasklet>
<chunk reader="multiResourceReader" writer="flatFileItemWriter"
commit-interval="1" />
<!-- <listeners> <listener ref="customItemReaderListener" /> </listeners> -->
</tasklet>
</step>
</job>
<bean id="multiResourceReader" class="org.springframework.batch.item.file.MultiResourceItemReader">
<property name="resources" value="file:csv/inputs/domain-*.csv" />
<property name="delegate" ref="flatFileItemReader" />
</bean>
<bean id="flatFileItemReader" class="org.springframework.batch.item.file.FlatFileItemReader">
<property name="lineMapper">
<!-- <bean class="org.springframework.batch.item.file.mapping.DefaultLineMapper">-->
<bean class="com.di.pos.CustomLineMapper">
<property name="lineTokenizer">
<bean
class="org.springframework.batch.item.file.transform.DelimitedLineTokenizer">
<property name="names" value="id, domain" />
</bean>
</property>
<property name="fieldSetMapper">
<bean
class="org.springframework.batch.item.file.mapping.BeanWrapperFieldSetMapper">
<property name="prototypeBeanName" value="domain" />
</bean>
</property>
</bean>
</property>
</bean>
和 CustomLineMapper.java 这里我改写了一些方法。
public class CustomLineMapper<T> extends DefaultLineMapper<T> {
public LineTokenizer lineTokenizer;
public FieldSetMapper<Domain> fieldSetMapper;
@Override
public T mapLine(String line, int lineNumber) throws Exception {
System.out.println("======" + line);
DelimitedLineTokenizer delimitedLineTokenizer = new DelimitedLineTokenizer();
if (line.indexOf("|") == -1) {
if (line.indexOf(",") == -1) {
} else {
delimitedLineTokenizer.setDelimiter(",");
}
} else {
delimitedLineTokenizer.setDelimiter("|");
}
setLineTokenizer(delimitedLineTokenizer);
return (T) this.fieldSetMapper.mapFieldSet(this.lineTokenizer.tokenize(line));
}
public LineTokenizer getLineTokenizer() {
return lineTokenizer;
}
public void setLineTokenizer(LineTokenizer lineTokenizer) {
this.lineTokenizer = lineTokenizer;
}
public FieldSetMapper<Domain> getFieldSetMapper() {
return fieldSetMapper;
}
@Override
public void setFieldSetMapper(FieldSetMapper<T> fieldSetMapper) {
super.setFieldSetMapper(fieldSetMapper);
}
}
当我执行这段代码时，出现以下异常。
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'step1': Cannot resolve reference to bean 'multiResourceReader' while setting bean property 'itemReader'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'multiResourceReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot resolve reference to bean 'flatFileItemReader' while setting bean property 'delegate'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flatFileItemReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot create inner bean 'com.di.pos.CustomLineMapper#3c50507' of type [com.di.pos.CustomLineMapper] while setting bean property 'lineMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.di.pos.CustomLineMapper#3c50507' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1393)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1134)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:608)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
at com.di.pos.App.run(App.java:23)
at com.di.pos.App.main(App.java:15)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'multiResourceReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot resolve reference to bean 'flatFileItemReader' while setting bean property 'delegate'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flatFileItemReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot create inner bean 'com.di.pos.CustomLineMapper#3c50507' of type [com.di.pos.CustomLineMapper] while setting bean property 'lineMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.di.pos.CustomLineMapper#3c50507' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1393)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1134)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323)
... 16 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flatFileItemReader' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Cannot create inner bean 'com.di.pos.CustomLineMapper#3c50507' of type [com.di.pos.CustomLineMapper] while setting bean property 'lineMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.di.pos.CustomLineMapper#3c50507' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:282)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:121)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1393)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1134)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:295)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323)
... 26 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.di.pos.CustomLineMapper#3c50507' defined in class path resource [spring/batch/jobs/job-read-files.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1488)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:271)
... 36 more
Caused by: java.lang.IllegalArgumentException: The LineTokenizer must be set
at org.springframework.util.Assert.notNull(Assert.java:112)
at org.springframework.batch.item.file.mapping.DefaultLineMapper.afterPropertiesSet(DefaultLineMapper.java:56)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1547)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1485)
... 39 more
谁能帮帮我？谢谢
试试这个：
@Override
public void setLineTokenizer(LineTokenizer lineTokenizer) {
super.setLineTokenizer(lineTokenizer);
this.lineTokenizer = lineTokenizer;
}
您需要像设置 fieldSetMapper 一样在超级 class 中设置 lineTokenizer。在 DefaultLineMapper 的 afterPropertiesSet 方法中，它正在检查它是否有 lineTokenizer，但它没有（不是超级 class 可以访问的） ).所以它抛出 IllegalArgumentException: 'The LineTokenizer must be set'.