我使用Spring引导应用程序，并得到下面提供的错误
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'trafficMapper': Unsatisfied dependency expressed through field 'config'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.ratepay.iris.ella.config.MasterConfig' 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$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1378)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:575)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:846)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:863)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:88)
at com.ratepay.iris.ella.service.EllaServiceIntegrationTest.setup(EllaServiceIntegrationTest.java:72)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at com.github.tomakehurst.wiremock.junit.WireMockRule$1.evaluate(WireMockRule.java:73)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.ratepay.iris.ella.config.MasterConfig' 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:1644)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1203)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1164)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
... 38 more
当我尝试进行集成测试设计时发生了错误。
@Before
@SuppressWarnings( "resource" )
public void setup() {
int port = wireMockRule.port();
System.setProperty( "ella.uri", "http://localhost:" + port + ELLA_ENDPOINT );
// System.setProperty( "freud.master.config", "src/test/resources/test-master-config.json" );
System.setProperty( "ella.shadowmode", "enabled" );
ApplicationContext context = new AnnotationConfigApplicationContext( EllaConfiguration.class );
ellaService = context.getBean( EllaService.class );
}
这是提供错误的LOC
ApplicationContext context = new AnnotationConfigApplicationContext( EllaConfiguration.class );
下面提供了EllaConfiguration类，
@Configuration
@ComponentScan( "com.ratepay.iris.ella" )
public class EllaConfiguration {
public static final String ELLA_CONNECTOR_BEAN_NAME = "ellaConnector";
private static final String URI_CONFIG_KEY = "ella.uri";
private static final String CONNECTION_TIMEOUT_CONFIG_KEY = "ella.connection_timeout";
private static final String READ_TIMEOUT_CONFIG_KEY = "ella.read_timeout";
private static final int DEFAULT_CONNECTION_TIMEOUT = 100;
private static final int DEFAULT_READ_TIMEOUT = 800;
public static final String ELLA_SHADOW_MODE_KEY = "ella.shadowmode";
public static final String ELLA_SHADOW_MODE_ENABLED_VALUE = "enabled";
@Bean( name = ELLA_CONNECTOR_BEAN_NAME )
public EntityServiceConnectable<EllaResponse> timeoutConfiguration( final Environment env ) {
return ServiceConnectorBuilder.create( createConnectionConfiguration( env ) ).timeout( createTimeoutConfiguration( env ) ).build();
}
private SimpleTimeoutConfiguration createTimeoutConfiguration( final Environment env ) {
return new SimpleTimeoutConfiguration( env.getProperty( CONNECTION_TIMEOUT_CONFIG_KEY, Integer.class, DEFAULT_CONNECTION_TIMEOUT ),
env.getProperty( READ_TIMEOUT_CONFIG_KEY, Integer.class, DEFAULT_READ_TIMEOUT ) );
}
public boolean isEllaShadowModeEnabled( final Environment env ) {
return env.getRequiredProperty( ELLA_SHADOW_MODE_KEY ).equals( ELLA_SHADOW_MODE_ENABLED_VALUE );
}
private PostConnectionConfiguration<EllaResponse> createConnectionConfiguration( final Environment env ) {
return new SimplePostConnectionConfiguration<>( env.getRequiredProperty( URI_CONFIG_KEY ), EllaResponse.class );
}
}
提供了EllaService类，
@Service
public class EllaService {
public static final int IRIS_ACCEPT = 0;
public static final int IRIS_REJECT = 100;
@Autowired
@Qualifier( ELLA_CONNECTOR_BEAN_NAME )
private EntityServiceConnectable<EllaResponse> connector;
@Autowired
private TrafficMapper trafficMapper;
@Autowired
private EllaConfiguration config;
@Autowired
private Environment env;
@Getter
private boolean shadowModeEnabled = false;
/**
* Initialize the service.
*/
@PostConstruct
public void initialize() {
this.shadowModeEnabled = config.isEllaShadowModeEnabled( env );
}
/**
* Asynchronously call Ella. Determine if traffic is applicable for Ella and if yes forward to Ella.
*
* @param irisEo
* @return List<ResultBo>
* @throws EllaGatewayUnsuccessfulResponseException
*/
@Async
public void invokeEllaAsync( final IrisEo irisEo ) throws EllaGatewayUnsuccessfulResponseException {
invokeEllaSync( irisEo );
}
/**
* Synchronously call Ella. Determine if traffic is applicable for Ella and if yes forward to Ella.
*
* @param irisEo
* @return List<ResultBo>
* @throws EllaGatewayUnsuccessfulResponseException
*/
public List<ResultBo> invokeEllaSync( final IrisEo irisEo ) throws EllaGatewayUnsuccessfulResponseException {
Optional<String> mapId = trafficMapper.getApplicableMapId( irisEo );
if( mapId.isPresent() && StringUtils.isNotEmpty( mapId.get() ) ) {
try {
return irisEo.getOrder().getProducts().stream().map( product -> fetchEllaResult( irisEo, mapId.get(), product ) )
.collect( Collectors.toList() );
}
catch( EllaGatewayUnsuccessfulResponseException ex ) {
throw new EllaGatewayUnsuccessfulResponseException( ex.getMessage(), ex.getCause() );
}
}
return Collections.emptyList();
}
private ResultBo fetchEllaResult( final IrisEo irisEo, String mapId, String product ) throws EllaGatewayUnsuccessfulResponseException {
HttpHeaders freudHeaders = createRequestHeaders( irisEo );
ServiceResponse<EllaResponse> response = connector
.call( EllaDtoConverter.convertToRequest( irisEo, mapId, product ), freudHeaders );
if( !response.isSuccess() ) {
throw new EllaGatewayUnsuccessfulResponseException( response.getErrorMessage(), response.getException().getCause() );
}
EllaResult prediction = response.getResponse().getResult();
return convertToResultBo( prediction, product );
}
private ResultBo convertToResultBo( EllaResult prediction, String product ) {
ClassificationResult classification = prediction.getClassification();
final int irisPrediction = ClassificationResult.FRAUD.equals( classification ) ? IRIS_REJECT : IRIS_ACCEPT;
// final int irisPrediction = Integer.valueOf( classification.getValue() ) < 900 ? IRIS_REJECT : IRIS_ACCEPT;
return new ResultBo( product, irisPrediction );
}
private HttpHeaders createRequestHeaders( final IrisEo irisEo ) {
HttpHeaders freudHeaders = new HttpHeaders();
freudHeaders.add( ACCEPT, APPLICATION_JSON_UTF8_VALUE );
RatepayHeaders.append( freudHeaders, irisEo.getRequestInfo() );
return freudHeaders;
}
}
我从LOC中的invokeEllaSync方法获得了NPE，
Optional<String> mapId = trafficMapper.getApplicableMapId( irisEo );
提供了TrafficMapper类，
@Component
public class TrafficMapper {
@Autowired
private MasterConfig config;
private final Map<Integer, String> shopIdToMapId = new HashMap<>();
/**
* Initialize the component.
*/
@PostConstruct
public void initialize() {
fillShopIdMap();
}
/**
* Return an optional holding a specific map id.
*
* @param irisEo
* @return Optional<String>
*/
public Optional<String> getApplicableMapId( IrisEo irisEo ) {
Integer shopId = irisEo.getOrder().getShopId();
return Optional.ofNullable( this.shopIdToMapId.get( shopId ) );
}
private void fillShopIdMap() {
this.config.getTrafficMappings().stream().forEach( trafficMapping -> trafficMapping.getTrafficDescription().getShopIds().stream()
.forEach( shopId -> this.shopIdToMapId.put( shopId, trafficMapping.getMapId() ) ) );
}
}
提供了MasterConfig类，
@Getter
@Setter
@ToString
public class MasterConfig {
@NotNull
@JsonProperty( "traffic_mappings" )
private List<TrafficMapping> trafficMappings;
}
我提供这些课程的原因是我找不到问题，并希望提供更多调查信息。
如何解决UnsatisfiedDependencyException错误？
PS：
如果不合适，我可以修改问题。如果您有任何疑虑，请在下面发表评论。
答案 0 :(得分：1)
向Component类添加MasterConfig注释。
@Component
@Getter
@Setter
@ToString
public class MasterConfig {
@NotNull
@JsonProperty( "traffic_mappings" )
private List<TrafficMapping> trafficMappings;
}
Autowired表示您想将Bean注入到字段等中。
因此MasterConfig应该是一个bean。您可以使其成为组件或服务或其他bean。
答案 1 :(得分：0)
在MasterConfig类的@Component（）下面提供。这里就是这样。最好也提供@Primary（）。
@Component() @primary()
@Getter
@Setter
@ToString
public class MasterConfig {
@NotNull
@JsonProperty( "traffic_mappings" )
private List<TrafficMapping> trafficMappings;
}