Als ich versuchte, einen Batch-Prozess mit Springboot durchzuführen, blieb ich im Folgenden stecken
Als ich das Netz durchsuchte, wurde gesagt, dass ConfigurableApplicationContext verwendet werden sollte. Schreiben Sie also wie folgt
package com;
import java.io.IOException;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
@SpringBootApplication
public class SampleApplication {
/**
* Hauptklasse
*
* @param args
*/
public static void main(String[] args) {
try {
ConfigurableApplicationContext context = SpringApplication.run(SampleBatchService.class, args);
SampleBatchService service = context.getBean(SampleBatchService.class);
service.run(args);
context.close();
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
// TODO automatisch generierter Fangblock
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
}
Der Fehler, dass Repository nicht DI sein kann, ist jedoch ...
***************************
APPLICATION FAILED TO START
***************************
Description:
Field latestRateRepository in com.SampleApplication required a bean of type 'com.repository.LatestRateRepository' that could not be found.
The injection point has the following annotations:
- @org.springframework.beans.factory.annotation.Autowired(required=true)
Action:
Consider defining a bean of type 'com.repository.LatestRateRepository' in your configuration.
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sampleBatchService': Unsatisfied dependency expressed through field 'latestRateRepository'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.repository.LatestRateRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1422)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
at com.SampleApplication.main(SampleApplication.java:21)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.repository.LatestRateRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1695)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1253)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640)
... 23 more
org.springframework.boot.devtools.restart.SilentExitExceptionHandler$SilentExitException
at org.springframework.boot.devtools.restart.SilentExitExceptionHandler.exitCurrentThread(SilentExitExceptionHandler.java:90)
at org.springframework.boot.devtools.restart.Restarter.immediateRestart(Restarter.java:180)
at org.springframework.boot.devtools.restart.Restarter.initialize(Restarter.java:164)
at org.springframework.boot.devtools.restart.Restarter.initialize(Restarter.java:554)
at org.springframework.boot.devtools.restart.RestartApplicationListener.onApplicationStartingEvent(RestartApplicationListener.java:74)
at org.springframework.boot.devtools.restart.RestartApplicationListener.onApplicationEvent(RestartApplicationListener.java:50)
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
at org.springframework.boot.context.event.EventPublishingRunListener.starting(EventPublishingRunListener.java:70)
at org.springframework.boot.SpringApplicationRunListeners.starting(SpringApplicationRunListeners.java:47)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:305)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
at com.SampleApplication.main(SampleApplication.java:21)
Nach ungefähr drei Tagen war die in ConfigurableApplicationContext angegebene Klasse in der Hauptklasse falsch. .. ..
ConfigurableApplicationContext context = SpringApplication.run(SampleBatchService.class, args); ↓ ConfigurableApplicationContext context = SpringApplication.run(SampleApplication.class, args);
Sie müssen hier Ihre eigene Klasse angeben: frowning2:
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