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bean类型java的未满足依赖项异常。util。性质

dependency-injection spring java

x80486 · 技术社区 · 3 年前

Spring Framework 5.3.10 Spring Boot . 我在创建/注入一个 Properties 豆以下是我的设置:

@Configuration
@AllArgsConstructor
@EnableTransactionManagement
@PropertySource("classpath:application.properties")
public class PersistenceConfig {
  @Bean
  public NamedParameterJdbcTemplate namedParameterJdbcTemplate() throws NamingException {
    return new NamedParameterJdbcTemplate(dataSource());
  }

  ...

  @Bean("employeeQueries")
  public Properties employeeQueries() throws IOException {
    final var properties = new PropertiesFactoryBean();
    properties.setLocation(new FileSystemResource("database/employee-queries.properties"));
    return properties.getObject();
  }
}

@Repository
@Transactional
@AllArgsConstructor
public class EmployeeJdbc implements IEmployeeJdbc {
  private final NamedParameterJdbcTemplate template;

  @Qualifier("employeeQueries")
  private final Properties queries; // Not getting injected >:/

  ...

stacktrace在这个问题上非常清楚,但我仍然无法让它工作:

2021-12-19 19:19:40,771 |- ERROR in o.s.t.context.TestContextManager:252 [main] - Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@14e2e1c3] to prepare test instance [org.acme.persistence.EmployeeJdbcTest@2b4786dd]
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.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138)
  at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$8(ClassBasedTestDescriptor.java:363)
  at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:368)
  at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$9(ClassBasedTestDescriptor.java:363)
  at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
  at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
  at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655)
  at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
  at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
  at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312)
  at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735)
  at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734)
  at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658)
  at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:362)
  at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:283)
  at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:282)
  at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:272)
  at java.base/java.util.Optional.orElseGet(Optional.java:369)
  at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:271)
  at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31)
  at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:102)
  at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:101)
  at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:66)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123)
  at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90)
  at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
  at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
  at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
  at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
  at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
  at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
  at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
  at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
  at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
  at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
  at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
  at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
  at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
  at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
  at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107)
  at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88)
  at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54)
  at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67)
  at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52)
  at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
  at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
  at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
  at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
  at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:71)
  at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
  at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235)
  at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'employeeJdbc' defined in file [/home/gorre/Workshop/Development/java-spring-jdbc/target/classes/org/acme/persistence/EmployeeJdbc.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'java.util.Properties' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value="employeeQueries")}
  at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800)
  at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:229)
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1372)
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1222)
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
  at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$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:944)
  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)
  ... 69 common frames omitted
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'java.util.Properties' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value="employeeQueries")}
  at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1790)
  at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1385)
  at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1300)
  at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:887)
  at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791)
  ... 87 common frames omitted

namedParameterJdbcTemplate 位于同一文件上,并且安装程序没有 employeeQueries 很好,我只是想把SQL查询放进去 .properties

Lombok的配置已经完成 lombok.copyableannotations += org.springframework.beans.factory.annotation.Qualifier .

性质

1 回复 | 直到 3 年前

xerx593 3 年前

使用的(弹簧标准)“工厂”机具 FactoryBean<Properties> InitializingBean ...

按设计方法

@Bean("employeeQueries")
public FactoryBean<Properties> employeeQueries() throws IOException {
    final var properties = new PropertiesFactoryBean();
    // please prefer: File- ressource with *absolute* path, alternatively (spring) Classpath- or ServletContext-
    properties.setLocation(new FileSystemResource("database/employee-queries.properties"));
    return properties;
}

直接(问题解决方案/低影响)方法:

我们需要:

factory.afterProertiesSet();

... 设置完所有(工厂)bean属性后,执行其(工厂)总体配置的验证和最终初始化。

资料来源: https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/beans/factory/config/PropertiesFactoryBean.html#afterPropertiesSet--

factory.getObject();

但上述规定仅适用于 @Bean afterPropertiesSet /验证“引擎盖下”,例如,当我们将暴露工厂而不是属性时)。

总是 ,当我们(初始化)时:

(any spring)InitializingBean factory = new InitializingBean();
factory.setXXX(...)
factory.setYYY(...)

应该

工厂afterProertiesSet();

之前我们可以:

工厂getObject();