堆棧內存溢出
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我在 Spring 5.3.18 上的組件掃描不起作用

[英]My component scan on Spring 5.3.18 does not work

 原文  2022-04-08 16:06:56  0   1    java/ spring/ component-scan

問題描述

我的應用程序中的 spring ComponentScan 沒有什么問題。

這是我的測試 spring 配置：

@Configuration
@ComponentScan(basePackages = {"com.dhl.cdm","com.dhl.common.dao"})
@EnableTransactionManagement
public class TestConfiguration {

    @Bean
    public DataSource dataSource() {
        EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder()
                .setType(EmbeddedDatabaseType.HSQL)
                .setScriptEncoding("UTF-8")
                .ignoreFailedDrops(true)
                .addScript("cdm_schema.sql");
        return builder.build();
    }

    @Bean(name="jdbcTemplateUserRepository")
    public NamedParameterJdbcTemplate getJdbcTemplateUserRepository(DataSource dataSource) {
        return new NamedParameterJdbcTemplate(dataSource);
    }

    @Bean
    public JdbcTemplate getJdbcTemplate(DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }

    @Bean
    public LocalSessionFactoryBean sessionFactoryBean() {
        LocalSessionFactoryBean result = new LocalSessionFactoryBean();
        result.setDataSource(dataSource());
        result.setPackagesToScan(new String[] { "com.dhl.cdm", "com.dhl.common.entity" });

        Properties properties = new Properties();
//        properties.setProperty("hibernate.hbm2ddl.auto", "create-drop");
        properties.setProperty("hibernate.format_sql", "true");
        properties.setProperty("hibernate.show_sql", "true");
        result.setHibernateProperties(properties);
        return result;
    }

    @Bean
    public SessionFactory sessionFactory() {
        return sessionFactoryBean().getObject();
    }

    @Bean
    public HibernateTransactionManager transactionManager() {
        HibernateTransactionManager man = new HibernateTransactionManager();
        man.setSessionFactory(sessionFactory());
        return man;
    }
    @Bean
    public CdmInMemoryConfigurationDataLoader getCdmInMemoryConfigurationDataLoader() {
       return new MockCdmInMemoryConfigurationDataLoader();
    }

}

當我嘗試在此配置上運行測試時，它失敗了：

17:55:42.882 [main] ERROR org.springframework.test.context.TestContextManager - Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@675230cd] to prepare test instance [com.dhl.cdm.core.entityconfig.entity.referencePath.ReferencePathParserTest@2a73a64f]
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'com.dhl.cdm.core.entityconfig.entity.referencePath.ReferencePathParserTest': Unsatisfied dependency expressed through field 'entityConfigProviderService'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.dhl.cdm.core.entityconfig.service.EntityConfigProviderService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

但是我的類路徑中缺少 class：

package com.dhl.cdm.core.entityconfig.service;

import com.dhl.cdm.core.entityconfig.entity.configWrapper.EntityConfigWrapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Profile;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service
@Transactional
@Profile("!autodiscovery")
public class EntityConfigProviderServiceImpl implements EntityConfigProviderService {

    private Map<String, EntityConfigWrapper> entityConfigWrapperMap = new HashMap<>();

    @Autowired(required = false)
    private IEntityConfigLoader loader;

    @Override
    public EntityConfigWrapper getEntityConfigWrapper(String entityId) {
        if (entityConfigWrapperMap.isEmpty()) {
            entityConfigWrapperMap.putAll(loader.loadEntityConfig());
        }
        return entityConfigWrapperMap.get(entityId);
    }

    @Override
    public void refresh() {
        entityConfigWrapperMap.clear();
    }

    @Override
    public List<EntityConfigWrapper> getAll() {
        if (entityConfigWrapperMap.isEmpty()) {
            entityConfigWrapperMap.putAll(loader.loadEntityConfig());
        }
        return new ArrayList<>(entityConfigWrapperMap.values());
    }

}

有人能告訴我為什么 Spring 中的組件掃描不起作用嗎？ 也許測試類路徑和普通類路徑之間有一些不同，我不知道。 感謝幫助。

完整的堆棧跟蹤例如：

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'inMemoryCdmDataProvider': Unsatisfied dependency expres
sed through field 'loader'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.dhl.cdm.core.confi
gProvider.pojo.dao.CdmInMemoryConfigurationDataLoader' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.spr
ingframework.beans.factory.annotation.Autowired(required=true)}
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostPro
cessor.java:659)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java
:639)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)  
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostPro
cessor.java:656)
        ... 51 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.dhl.cdm.core.configProvider.pojo.dao.CdmInMemoryConfigu
rationDataLoader' 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:1799)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1355)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostPro
cessor.java:656)
        ... 65 more

getTitle(com.dhl.cdm.core.localization.LocalizationServiceTest)  Time elapsed: 0 sec  <<< ERROR!
java.lang.IllegalStateException: Failed to load ApplicationContext
        at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:132)
        at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:124)
        at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:118) 
        at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) 
        at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:248)
        at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227)
        at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291)
        at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246)
        at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)
        at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
        at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
        at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
        at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
        at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
        at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
        at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
        at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'menuInMemoryDaoImpl': Unsatisfied dependency expressed 
through field 'provider'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'inMemoryCdmDataProvi
der': Unsatisfied dependency expressed through field 'loader'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying b
ean of type 'com.dhl.cdm.core.configProvider.pojo.dao.CdmInMemoryConfigurationDataLoader' 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$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostPro
cessor.java:659)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java
:639)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)  
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
        at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:127)
        at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:60)
        at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:275)
        at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:243)
        at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99)       
        at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124)
        ... 32 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'inMemoryCdmDataProvider': Unsatisfied dependency expres
sed through field 'loader'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.dhl.cdm.core.confi
gProvider.pojo.dao.CdmInMemoryConfigurationDataLoader' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.spr
ingframework.beans.factory.annotation.Autowired(required=true)}
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostPro
cessor.java:659)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java
:639)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)  
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1389)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostPro
cessor.java:656)
        ... 51 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.dhl.cdm.core.configProvider.pojo.dao.CdmInMemoryConfigu
rationDataLoader' 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:1799)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1355)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1309)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostPro
cessor.java:656)
        ... 65 more

1 個解決方案

解決方案1
 0  2022-04-21 18:04:11

Spring 報告沒有可用的合格 bean：這並不意味着 class 不在類路徑中，而是實現該接口的 bean 不包含在 Spring 上下文中。

問題的一個可能原因是您以某種方式在某個地方啟用了autodiscovery配置文件，並且您在服務中指出必須僅在該配置文件未激活時才定義 bean：

@Profile("!autodiscovery")

請仔細檢查：Spring 在啟動上下文時輸出活動的 Spring 配置文件，並根據需要調整測試配置文件。

請考慮仔細查看可能引發問題的嵌套錯誤的完整錯誤堆棧跟蹤。

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