Spring錯誤之org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'bookService' ...

1 org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'cashier': Unsatisfied dependency expressed through field 'bookService'; nested exception is org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'bookService' is expected to be of type 'pw.fengya.tx.BookService' but was actually of type 'com.sun.proxy.$Proxy19'
 2     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:587)
 3     at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91)
 4     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:373)
 5     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1344)
 6     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
 7     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:502)
 8     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312)
 9     at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$176/667821226.getObject(Unknown Source)
10     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
11     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
12     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200)
13     at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760)
14     at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:868)
15     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
16     at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:144)
17     at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:85)
18     at pw.fengya.tx.Test.<init>(Test.java:19)
19     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
20     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
21     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
22     at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
23     at org.junit.platform.commons.util.ReflectionUtils.newInstance(ReflectionUtils.java:347)
24     at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:60)
25     at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.instantiateTestClass(ClassTestDescriptor.java:197)
26     at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.instantiateAndPostProcessTestInstance(ClassTestDescriptor.java:188)
27     at org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$testInstanceProvider$1(ClassTestDescriptor.java:181)
28     at org.junit.jupiter.engine.descriptor.ClassTestDescriptor$$Lambda$154/1860944798.getTestInstance(Unknown Source)
29     at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:80)
30     at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:57)
31     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:60)
32     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
33     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$$Lambda$136/201556483.accept(Unknown Source)
34     at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
35     at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
36     at java.util.Iterator.forEachRemaining(Iterator.java:116)
37     at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
38     at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
39     at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
40     at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
41     at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
42     at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
43     at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
44     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
45     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$$Lambda$133/1287712235.execute(Unknown Source)
46     at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
47     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
48     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$null$2(HierarchicalTestExecutor.java:92)
49     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$$Lambda$136/201556483.accept(Unknown Source)
50     at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
51     at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
52     at java.util.Iterator.forEachRemaining(Iterator.java:116)
53     at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
54     at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
55     at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
56     at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
57     at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
58     at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
59     at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
60     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.lambda$execute$3(HierarchicalTestExecutor.java:92)
61     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$$Lambda$133/1287712235.execute(Unknown Source)
62     at org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66)
63     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:77)
64     at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:51)
65     at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43)
66     at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:170)
67     at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:154)
68     at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
69     at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:86)
70     at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
71     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538)
72     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)
73     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)
74     at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)
75 Caused by: org.springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'bookService' is expected to be of type 'pw.fengya.tx.BookService' but was actually of type 'com.sun.proxy.$Proxy19'
76     at org.springframework.beans.factory.support.DefaultListableBeanFactory.checkBeanNotOfRequiredType(DefaultListableBeanFactory.java:1527)
77     at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1505)
78     at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1104)
79     at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1065)
80     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584)
81     ... 72 more      

最近在學習Spring架構的時候，很容易犯下的一個錯誤，需要在配置檔案中打開aop命名空間，并設定如下屬性：

<aop:config proxy-target-class="true"></aop:config>      

不知道為什麼，在使用注解配置bean的時候，很容易報的一個錯，尤其是自定義的接口與實作類

轉載于:https://www.cnblogs.com/lxc-2017/p/8639408.html