Spring中的@StepScope批量尝试传递参数时抛出异常
作者：互联网
我很难将Spring-batch与使用Spring-boot的Spring-batch-admin结合起来.
因为我使用的是Spring-batch-admin,所以我必须禁用@EnableBatchProcessing并手动配置它提供的两个构建器.
来自我的问题：
Error Integrating spring-batch and Spring-Batch-admin
现在我想尝试做一个简单的场景,当我想使用@StepScope将param从jobContext params传递到ItemReader并注入属性
我在这里跟着示例(示例没有spring-batch-admin和spring boot)
我得到这个例外：
2015-01-06 18:22:09.852 ERROR 10260 --- [nio-8080-exec-1] o.s.batch.core.step.AbstractStep : Exception while closing step execution resources in step step2 in job MyTestJob
java.lang.ClassCastException: com.sun.proxy.$Proxy74 cannot be cast to org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader
at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader$$FastClassBySpringCGLIB$$ebb633d0.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
at org.springframework.batch.item.file.FlatFileItemReader$$EnhancerBySpringCGLIB$$e99a9c6b.close(<generated>)
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:267)
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148)
at org.springframework.batch.core.job.AbstractJob.handleStep(AbstractJob.java:386)
at org.springframework.batch.core.job.SimpleJob.doExecute(SimpleJob.java:135)
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:304)
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 com.mycompany.notification.processor.service.controller.BatchJobController.job1(BatchJobController.java:38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:777)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:706)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.boot.actuate.autoconfigure.EndpointWebMvcAutoConfiguration$ApplicationContextHeaderFilter.doFilterInternal(EndpointWebMvcAutoConfiguration.java:288)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.batch.admin.web.filter.ParameterUnpackerFilter.doFilterInternal(ParameterUnpackerFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.boot.actuate.autoconfigure.MetricFilterAutoConfiguration$MetricsFilter.doFilterInternal(MetricFilterAutoConfiguration.java:90)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:537)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1085)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:658)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1556)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1513)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
2015-01-06 18:22:09.866 INFO 10260 --- [nio-8080-exec-1] o.s.b.c.l.support.SimpleJobLauncher : Job: [SimpleJob: [name=MyTestJob]] completed with the following parameters: [{pathToFile=snids.csv, date=1420561328719}] and the following status: [FAILED]
这是我通过控制器创建Job的方法：
@RequestMapping(value = "/job1")
public @ResponseBody StatusResponse job1() {
try {
JobParameters jobParameters = new JobParametersBuilder().addString("pathToFile", "snids.csv").addDate("date", new Date()).toJobParameters();
jobLauncher.run(job1,jobParameters);
return new StatusResponse(true);
} catch (JobInstanceAlreadyCompleteException ex) {
return new StatusResponse(false, "This job has been completed already!");
} catch (Exception e) {
throw new RuntimeException(e);
}
}
Application.class：
@ComponentScan({"com.mycompany.notification.processor.service"})
@EnableAutoConfiguration
@Configuration
@ImportResource({
"classpath:integration-context.xml","classpath:launch-context.xml"})
@PropertySource("file:///d://etc/mycompany/services/pushExecuterService/pushExecuterServices.properties")
//@Import({ ServletConfiguration.class, WebappConfiguration.class })
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
System.out.printf("hello man");
}
}
和BatchConfiguration类：
@Configuration
public class BatchConfiguration {
private static final Logger logger = LoggerFactory.getLogger(BatchConfiguration.class);
@Inject
private WriteToKafkaTasklet writeToKafkaTasklet;
@Inject
private StepBuilderFactory steps;
@Autowired
private DownloadFileTasklet downloadFileTasklet;
@Inject
private JobBuilderFactory jobs;
@Inject
private StepBuilderFactory stepBuilderFactory;
@Bean
public Job job() throws Exception {
return this.jobs.get("MyTestJob").start(downloadFileFromETStep()).next(processFileStep()).next(pushToKafkaStep()).build();
}
private Step pushToKafkaStep() {
return this.steps.get("step3").tasklet(writeToKafkaTasklet).build();
}
private Step downloadFileFromETStep() {
return this.steps.get("step1").tasklet(downloadFileTasklet).build();
}
private static final String OVERRIDDEN_BY_EXPRESSION = null;
@Bean
public Step processFileStep() {
return stepBuilderFactory.get("step2")
.<PushItemDTO, PushItemDTO>chunk(1) //important to be one in this case to commit after every line read
.reader(reader(OVERRIDDEN_BY_EXPRESSION))
// .processor(processor())
.writer(writer())
// .listener(logProcessListener())
// .faultTolerant()
// .skipLimit(10) //default is set to 0
// .skip(MySQLIntegrityConstraintViolationException.class)
.build();
}
@Bean
public ItemWriter writer() {
return new ItemWriter() {
@Override
public void write(List items) throws Exception {
logger.debug("hello");
}
};
}
@Bean
@Scope(value = "step", proxyMode = ScopedProxyMode.INTERFACES)
public FlatFileItemReader<PushItemDTO> reader(@Value("#{jobParameters[pathToFile]}") String pathToFile){
FlatFileItemReader<PushItemDTO> itemReader = new FlatFileItemReader<PushItemDTO>();
itemReader.setLineMapper(lineMapper());
itemReader.setResource(new ClassPathResource(pathToFile));
return itemReader;
}
@Bean
public LineMapper<PushItemDTO> lineMapper() {
DefaultLineMapper<PushItemDTO> lineMapper = new DefaultLineMapper<PushItemDTO>();
DelimitedLineTokenizer lineTokenizer = new DelimitedLineTokenizer();
// lineTokenizer.setDelimiter(",");
lineTokenizer.setStrict(false);
lineTokenizer.setNames(new String[]{"SNID"});
BeanWrapperFieldSetMapper<PushItemDTO> fieldSetMapper = new BeanWrapperFieldSetMapper<PushItemDTO>();
fieldSetMapper.setTargetType(PushItemDTO.class);
lineMapper.setLineTokenizer(lineTokenizer);
lineMapper.setFieldSetMapper(new PushItemFieldSetMapper());
return lineMapper;
}
}
Servlet配置：
@Configuration
@ImportResource("classpath:/org/springframework/batch/admin/web/resources/servlet-config.xml")
public class ServletConfiguration {
}
Webapp配置：
@Configuration
@ImportResource("classpath:/org/springframework/batch/admin/web/resources/webapp-config.xml")
public class WebappConfiguration {
}
谢谢
我编辑了我的代码而不是@StepScope我添加了
@Scope(value = "step", proxyMode = ScopedProxyMode.INTERFACES)
如建议.
现在我得到了不同的例外：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'batchJobController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.batch.core.Job com.mycompany.notification.processor.service.controller.BatchJobController.job1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'job' defined in class path resource [com/mycompany/notification/processor/service/batch/conf/flow/BatchConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Job]: Factory method 'job' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processFileStep' defined in class path resource [com/mycompany/notification/processor/service/batch/conf/flow/BatchConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'processFileStep' threw exception; nested exception is java.lang.ClassCastException: com.sun.proxy.$Proxy59 cannot be cast to org.springframework.batch.item.file.FlatFileItemReader
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1202)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:762)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:109)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:961)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:950)
at com.mycompany.notification.processor.service.main.Application.main(Application.java:20)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.batch.core.Job com.mycompany.notification.processor.service.controller.BatchJobController.job1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'job' defined in class path resource [com/mycompany/notification/processor/service/batch/conf/flow/BatchConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Job]: Factory method 'job' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processFileStep' defined in class path resource [com/mycompany/notification/processor/service/batch/conf/flow/BatchConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.batch.core.Step]: Factory method 'processFileStep' threw exception; nested exception is java.lang.ClassCastException: com.sun.proxy.$Proxy59 cannot be cast to org.springframework.batch.item.file.FlatFileItemReader
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:558)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
... 16 common frames omitted
解决方法:
Spring Batch Admin通过XML配置StepScope,它提供了Java代理作为代理机制.但是,@ SteptScope使用动态子类.为了使其工作,而不是使用@StepScope快捷方式,请使用以下内容：
@Scope(value = "step", proxyMode = ScopedProxyMode.INTERFACES)
除了上述更新之外,您还需要返回接口(而不是实现),以便正确代理它.因此,在这种情况下,您将要返回ItemStreamReader而不是FlatFileItemReader.
标签：spring,spring-boot,spring-mvc,spring-batch,spring-batch-admin 来源： https://codeday.me/bug/20191007/1863657.html