java - 创建名为 'JobTest' : Injection of autowired dependencies failed; nested exception is org. springframework.beans.factory.BeanCreat 的 bean 时出错

Question

我正在开发 CSV 文件到 MYSQL 的 JUnit 测试用例。我开发了以下测试用例，运行它时，我看到以下错误:

我不知道为什么 Spring Batch 希望获得 Spring Bean 的资格。有什么指点吗？

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'JobTest': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.batch.test.JobLauncherTestUtils JobTest.jobLauncherTestUtils; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.batch.test.JobLauncherTestUtils] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1122)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:379)
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:110)
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:312)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:211)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:288)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:284)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:88)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.batch.test.JobLauncherTestUtils JobTest.jobLauncherTestUtils; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.batch.test.JobLauncherTestUtils] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:514)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)
    ... 26 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.batch.test.JobLauncherTestUtils] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:986)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:856)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:768)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:486)
    ... 28 more

JobTest.java

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {
        "classpath:spring/batch/jobs/job-report.xml",
        "classpath:spring/batch/config/context.xml",
        "classpath:spring/batch/config/database.xml"})
public class JobTest{
    @Autowired
    private JobLauncherTestUtils jobLauncherTestUtils;


    @Test
    public void launchJob() throws Exception {

        JobExecution jobExecution = jobLauncherTestUtils.launchJob();
        Assert.assertEquals(jobExecution.getStatus(), BatchStatus.COMPLETED);
    }
}

context.xml

<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.xsd">

    <!-- stored job-meta in database -->
    <bean id="jobRepository" class="org.springframework.batch.core.repository.support.JobRepositoryFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="transactionManager" ref="transactionManager" />
        <property name="databaseType" value="mysql" />
    </bean>

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

job-report.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:batch="http://www.springframework.org/schema/batch" 
    xmlns:task="http://www.springframework.org/schema/task"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
    http://www.springframework.org/schema/batch  http://www.springframework.org/schema/batch/spring-batch.xsd
    http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans.xsd">


    <bean id="report" class="com.mkyong.model.Report" scope="prototype" />

    <batch:job id="reportJob">
        <batch:step id="step1">
            <batch:tasklet>
                <batch:chunk reader="cvsFileItemReader" writer="mysqlItemWriter" commit-interval="2" />
            </batch:tasklet>
        </batch:step>
    </batch:job>


    <bean id="cvsFileItemReader" class="org.springframework.batch.item.file.FlatFileItemReader">

        <!-- Read a csv file -->
        <property name="resource" value="classpath:cvs/report.csv" />

        <property name="lineMapper">
            <bean class="org.springframework.batch.item.file.mapping.DefaultLineMapper">

                <!-- split it -->
                <property name="lineTokenizer">
                    <bean class="org.springframework.batch.item.file.transform.DelimitedLineTokenizer">
                        <property name="names" value="date,impressions,clicks,earning" />
                    </bean>
                </property>

                <property name="fieldSetMapper">

                    <!-- return back to reader, rather than a mapped object. -->
                    <!-- <bean class="org.springframework.batch.item.file.mapping.PassThroughFieldSetMapper" /> -->

                    <!-- map to an object -->
                    <bean class="org.springframework.batch.item.file.mapping.BeanWrapperFieldSetMapper">
                        <property name="prototypeBeanName" value="report" />
                    </bean>
                </property>
            </bean>
        </property>
    </bean>

    <bean id="mysqlItemWriter"  class="org.springframework.batch.item.database.JdbcBatchItemWriter">
        <property name="dataSource" ref="dataSource" />
        <property name="sql">
            <value>
            <![CDATA[        
                insert into RAW_REPORT(DATE,IMPRESSIONS,CLICKS,EARNING) values (:date, :impressions, :clicks, :earning)
            ]]>
            </value>
        </property>
        <!-- It will take care matching between object property and sql name parameter -->
        <property name="itemSqlParameterSourceProvider">
            <bean class="org.springframework.batch.item.database.BeanPropertyItemSqlParameterSourceProvider" />
        </property>
    </bean>
</beans>

Answer 1

您尚未将 JobLauncherTestUtils 配置为 bean。

<!-- Spring should auto load this bean -->
<bean class="org.springframework.batch.test.JobLauncherTestUtils"/>

请在此处找到完整文档: http://www.mkyong.com/spring-batch/spring-batch-unit-test-example/