autowire异常的三个情况
2010-3-11 16:06:00 net.sf.ehcache.config.ConfigurationFactory parseConfiguration警告: No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/E:/kenny/%e9%a1%b9%e7%9b%ae/shops/webapp/WEB-INF/lib/ehcache-1.6.1.jar!/ehcache-failsafe.xml2010-03-11 16:06:02,734 [main] ERROR [org.springframework.test.context.TestContextManager] - Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@1292d12] to prepare test instance [com.zzh.entity.product.BrandServiceImplTest@4e32c8]org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.zzh.entity.product.BrandServiceImplTest': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.service.product.impl.BrandServiceImpl com.zzh.entity.product.BrandServiceImplTest.brandServiceImpl; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'brandServiceImpl': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.dao.product.BrandDao com.zzh.service.product.impl.BrandServiceImpl.brandDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching beanat org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:243)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:329)at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:110)at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:255)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:111)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.invokeTestMethod(SpringJUnit4ClassRunner.java:148)at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51)at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44)at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27)at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37)at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:97)at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.service.product.impl.BrandServiceImpl com.zzh.entity.product.BrandServiceImplTest.brandServiceImpl; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'brandServiceImpl': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.dao.product.BrandDao com.zzh.service.product.impl.BrandServiceImpl.brandDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching beanat org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:435)at org.springframework.beans.factory.annotation.InjectionMetadata.injectFields(InjectionMetadata.java:105)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:240)... 19 moreCaused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'brandServiceImpl': Autowiring of fields failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.dao.product.BrandDao com.zzh.service.product.impl.BrandServiceImpl.brandDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching beanat org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:243)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:959)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)at java.security.AccessController.doPrivileged(Native Method)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:671)at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:610)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:412)... 21 moreCaused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.zzh.dao.product.BrandDao com.zzh.service.product.impl.BrandServiceImpl.brandDao; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching beanat org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:435)at org.springframework.beans.factory.annotation.InjectionMetadata.injectFields(InjectionMetadata.java:105)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessAfterInstantiation(AutowiredAnnotationBeanPostProcessor.java:240)... 34 moreCaused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [com.zzh.dao.product.BrandDao] is defined: Unsatisfied dependency of type [class com.zzh.dao.product.BrandDao]: expected at least 1 matching beanat org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:613)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:412)... 36 more
?autowire异常主要由三个情况发生的
像上面的情况是BrandDao没有注入，
1。你的BrandServiceImpl必须以@Service或@Component注解才行。
?
2。自动写入的时候把接口写成实现类了
@Autowired
private BrandServiceImpl????? brandServiceImpl;
应该是
@Autowired
private BrandService??? brandService ;
?
3.在BrandDao 类上加上@Repository注解
1 楼 woxiangbo 2010-06-13 三种情况我都尝试了，还是不行啊