Question

我有下一个春季批量配置类：

@Configuration
@EnableBatchProcessing
public class BatchJobConfiguration {

    @Autowired
    private JobBuilderFactory jobBuilderFactory;

    @Autowired
    private StepBuilderFactory stepBuilderFactory;

    @Bean
    public Step step1() {
        return stepBuilderFactory.get("step1")
                .tasklet(new Tasklet() {
                    public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) {
                        return null;
                    }
                })
                .build();
    }

    @Bean
    public Job job(Step step1) throws Exception {
        return jobBuilderFactory.get("job1")
                .incrementer(new RunIdIncrementer())
                .start(step1)
                .build();
    }
}

当我启动我的应用程序时，我收到下一个异常：

引起：java.lang.ClassCastException： org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean $$ EnhancerBySpringCGLIB $$ 65a19538 无法施展 org.springframework.batch.core.repository.JobRepository at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration $$ EnhancerBySpringCGLIB $$ 14f7a80d.jobRepository（）在 org.springframework.batch.core.configuration.annotation.AbstractBatchConfiguration.jobBuilders（AbstractBatchConfiguration.java:58）在 org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration $$ EnhancerBySpringCGLIB $$ 14f7a80d.CGLIB $ jobBuilders $ 6（）在 org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration $$ EnhancerBySpringCGLIB $$ 14f7a80d $$ FastClassBySpringCGLIB $$ c6b630d7.invoke（）在 org.springframework.cglib.proxy.MethodProxy.invokeSuper（MethodProxy.java:228）在 org.springframework.context.annotation.ConfigurationClassEnhancer $ BeanMethodInterceptor.intercept（ConfigurationClassEnhancer.java:312）在 org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration $$ EnhancerBySpringCGLIB $$ 14f7a80d.jobBuilders（） at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）at sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）在 sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）在java.lang.reflect.Method.invoke（Method.java:497）at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate（SimpleInstantiationStrategy.java:162）

在pom.xml中我有下一个依赖：

<dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-batch</artifactId>
</dependency>

提前致谢。

Answer 1

需要重命名JobRepository实例，否则Spring上下文会找到不正确的自动装配候选者。

Spring Batch配置异常

1 个答案: