Spring Batch：SimpleJobRepository - 示例不起作用

时间：2011-10-27 17:51:56

标签： java spring spring-batch

我一直试图从

运行Spring Batch Hello World 3示例

http://jroller.com/0xcafebabe/entry/spring_batch_hello_world_3

我错过了一些罐子，有人帮助我，让项目更好地工作，但我仍然有错误......有人可以帮助我：

这是我的applicationContext.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"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

    <bean id="jobLauncher" class="org.springframework.batch.core.launch.support.SimpleJobLauncher">
        <property name="jobRepository" ref="jobRepository"/>
    </bean>

    <bean id="jobRepository" class="org.springframework.batch.core.repository.support.SimpleJobRepository">
        <constructor-arg>
            <bean class="org.springframework.batch.core.repository.dao.MapJobInstanceDao"/>
        </constructor-arg>
        <constructor-arg>
            <bean class="org.springframework.batch.core.repository.dao.MapJobExecutionDao" />
        </constructor-arg>
        <constructor-arg>
            <bean class="org.springframework.batch.core.repository.dao.MapStepExecutionDao"/>
        </constructor-arg>
        <constructor-arg>
            <bean class="org.springframework.batch.core.repository.dao.MapExecutionContextDao"/>
        </constructor-arg>
    </bean>
</beans>

这是我在控制台上遇到的错误

INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@48ff2413: defining beans [jobLauncher,jobRepository,transactionManager,step,itemReader,lineTokenizer,fieldSetMapper,itemWriter,lineAggregator,simpleJob]; root of factory hierarchy
Oct 27, 2011 1:59:46 PM org.springframework.batch.core.launch.support.CommandLineJobRunner start
SEVERE: Job Terminated in error:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'step' defined in class path resource [itemOrientedJob.xml]: Cannot resolve reference to bean 'itemReader' while setting bean property 'itemReader'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'itemReader' defined in class path resource [itemOrientedJob.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'lineTokenizer' of bean class [org.springframework.batch.item.file.FlatFileItemReader]: Bean property 'lineTokenizer' 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.resolveReference(BeanDefinitionValueResolver.java:328)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
    at org.springframework.batch.core.launch.support.CommandLineJobRunner.start(CommandLineJobRunner.java:190)
    at org.springframework.batch.core.launch.support.CommandLineJobRunner.main(CommandLineJobRunner.java:254)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'itemReader' defined in class path resource [itemOrientedJob.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'lineTokenizer' of bean class [org.springframework.batch.item.file.FlatFileItemReader]: Bean property 'lineTokenizer' 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.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1361)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:322)
    ... 16 more
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'lineTokenizer' of bean class [org.springframework.batch.item.file.FlatFileItemReader]: Bean property 'lineTokenizer' 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.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:1052)
    at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:921)
    at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:76)
    at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:58)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1358)
    ... 24 more

1 个答案:

答案 0 :(得分：2)

看起来SimpleJobRepository的API在1.1.2和1.1.3之间发生了变化（引入向后不兼容的更改IMHO的糟糕时刻）。

您正在使用的教程使用Spring Batch 1.1.1，其中上面的类有一个带three parameters的构造函数。现在它有四个。额外参数是ExecutionContextDao。

这是我完全未经测试的解决方案：

<bean id="jobRepository" class="org.springframework.batch.core.repository.support.SimpleJobRepository">
    <constructor-arg>
        <bean class="org.springframework.batch.core.repository.dao.MapJobInstanceDao"/>
    </constructor-arg>
    <constructor-arg>
        <bean class="org.springframework.batch.core.repository.dao.MapJobExecutionDao" />
    </constructor-arg>
    <constructor-arg>
        <bean class="org.springframework.batch.core.repository.dao.MapStepExecutionDao"/>
    </constructor-arg>
    <constructor-arg>  <!-- Extra constructor argument -->
        <bean class="org.springframework.batch.core.repository.dao.MapExecutionContextDao"/>
    </constructor-arg>
</bean>

从未使用过Spring Batch，但也许您可以使用更新的教程（我不建议降级为1.x）？

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