0
我在簡單的Spring Boot應用程序上工作，並希望在其上使用併發線程。爲了實現這一點，我在服務方法上使用@Async註釋，但是當我添加@Async註釋時，彈簧DI崩潰。它在一個線程內沒有@Async的情況下工作沒有問題。要調用服務方法，我創建了jUnit測試。錯誤日誌顯示DI不起作用，並且沒有爲服務類找到這樣的bean。請幫助在Spring上使用@Async運行多個線程。爲什麼Spring Boot應用程序使用@Async註釋方法崩潰
編輯 我試圖把我的測試類@Autowired服務接口，而不是它的實現和@Async方法在其他線程運行之後。我應該如何測試我的服務的不同實現？
當時和崩潰：
@Autowired
CatalogPageServiceImpl catalogPageServiceImpl;
現在，而不是崩潰：
@Autowired
CatalogPageService catalogPageService;
我的服務接口：
public interface CatalogPageService {
public void processPagesList(List<CatalogPage> catalogPage);
public void processPage(CatalogPage catalogPage);
}
測試類：
@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = CLApplication.class)
@TestPropertySource(locations="classpath:test.properties")
public class CatalogPageServiceImplTest {
@Autowired
CatalogPageServiceImpl catalogPageServiceImpl;
@Test
public void processPageTest(){
for (int i=0; i<20; i++){
catalogPageServiceImpl.processPage(
new CatalogPage("test url string "+Integer.toString(i)));
}
}
}
應用類：
@SpringBootApplication
@EnableAsync
@ComponentScan(basePackages = {"org.cl, org.cl.service.location "})
public class CLApplication {
private static final Logger log = LoggerFactory.getLogger(CLApplication.class);
@Bean
public TaskExecutor locationPageExecutor() {
ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
executor.setCorePoolSize(20);
executor.setMaxPoolSize(20);
executor.setQueueCapacity(20);
return executor;
}
public static void main(String[] args) {
log.info("Application main method call");
try{
SpringApplication.run(CLApplication.class, args);
}catch(Throwable t){
log.error("Unexpected error: ",t);
}
log.info("Application main method exit");
}
}
服務類：
@Service
public class CatalogPageServiceImpl implements CatalogPageService {
@Override
public void processPagesList(List<CatalogPage> catalogPageList) {
for (CatalogPage catalogPage:catalogPageList){
processPage(catalogPage);
}
}
@Override
@Async("locationPageExecutor")
public void processPage(CatalogPage catalogPage) {
try {
Thread.sleep((new Random()).nextInt(1000));
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("print from Async method "+catalogPage.getUrl());
}
}
錯誤日誌：
org.springframework.beans.factory.BeanCreationException: Error creating bean wit
h name 'org.cl.service.CatalogPageServiceImplTest': Injection of autowired depen
dencies failed; nested exception is org.springframework.beans.factory.BeanCreati
onException: Could not autowire field: org.cl.service.location.CatalogPageServic
eImpl org.cl.service.CatalogPageServiceImplTest.catalogPageServiceImpl; nested e
xception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No
qualifying bean of type [org.cl.service.location.CatalogPageServiceImpl] found f
or dependency: expected at least 1 bean which qualifies as autowire candidate fo
r this dependency. Dependency annotations: {@org.springframework.beans.factory.a
nnotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProc
essor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) ~
[spring-beans-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory
.populateBean(AbstractAutowireCapableBeanFactory.java:1214) ~[spring-beans-4.2.7
.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory
.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:385) ~[spring-be
ans-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.test.context.support.DependencyInjectionTestExecutionLis
tener.injectDependencies(DependencyInjectionTestExecutionListener.java:118) ~[sp
ring-test-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.test.context.support.DependencyInjectionTestExecutionLis
tener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) ~[sp
ring-test-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.test.context.TestContextManager.prepareTestInstance(Test
ContextManager.java:228) ~[spring-test-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(S
pringJUnit4ClassRunner.java:230) [spring-test-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflect
iveCall(SpringJUnit4ClassRunner.java:289) [spring-test-4.2.7.RELEASE.jar:4.2.7.R
ELEASE]
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.j
ava:12) [junit-4.12.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(
SpringJUnit4ClassRunner.java:291) [spring-test-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(Spr
ingJUnit4ClassRunner.java:249) [spring-test-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(Spr
ingJUnit4ClassRunner.java:89) [spring-test-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:
4.12]
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.
jar:4.12]
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.1
2.jar:4.12]
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.
jar:4.12]
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12
.jar:4.12]
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbac
ks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.2.7.RELEASE.jar:
4.2.7.RELEASE]
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallback
s.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-4.2.7.RELEASE.jar:4.
2.7.RELEASE]
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.
12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJU
nit4ClassRunner.java:193) [spring-test-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestRef
erence.java:86) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:3
8) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.java:459) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.java:675) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.
java:382) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner
.java:192) [.cp/:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Could not au
towire field: org.cl.service.location.CatalogPageServiceImpl org.cl.service.Cata
logPageServiceImplTest.catalogPageServiceImpl; nested exception is org.springfra
mework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [
org.cl.service.location.CatalogPageServiceImpl] found for dependency: expected a
t least 1 bean which qualifies as autowire candidate for this dependency. Depend
ency annotations: {@org.springframework.beans.factory.annotation.Autowired(requi
red=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProc
essor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:573
) ~[spring-beans-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(Inject
ionMetadata.java:88) ~[spring-beans-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProc
essor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ~
[spring-beans-4.2.7.RELEASE.jar:4.2.7.RELEASE]
... 26 common frames omitted
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No q
ualifying bean of type [org.cl.service.location.CatalogPageServiceImpl] found fo
r dependency: expected at least 1 bean which qualifies as autowire candidate for
this dependency. Dependency annotations: {@org.springframework.beans.factory.an
notation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNo
SuchBeanDefinitionException(DefaultListableBeanFactory.java:1373) ~[spring-beans
-4.2.7.RELEASE.jar:4.2.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResol
veDependency(DefaultListableBeanFactory.java:1119) ~[spring-beans-4.2.7.RELEASE.
jar:4.2.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolve
Dependency(DefaultListableBeanFactory.java:1014) ~[spring-beans-4.2.7.RELEASE.ja
r:4.2.7.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProc
essor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:545
) ~[spring-beans-4.2.7.RELEASE.jar:4.2.7.RELEASE]
... 28 common frames omitted
顯示你的web.xml。 –
我沒有web.xml，因爲根本不使用web（servlet）服務器。我的test.properties包含：spring.main.web-environment = false – Pavlo
你解決了你的問題嗎？ –