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运行SpringBootTest报 UnsatisfiedDependencyException 和 NoSuchBeanDefinitionException 异常的解决思路分析_springboot单元测试 unsatisfied dependency

作者：花生_TL007 | 2024-06-12 16:18:50

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springboot单元测试 unsatisfied dependency

1、报错的信息

  • 问题出在 pom 文件中的依赖关系

 

  1. org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'com.example.Mybatisplus01QuickstartApplicationTests': Unsatisfied dependency expressed through field 'userDao': No qualifying bean of type 'com.example.mapper.UserDao' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
  2.  
  3. 	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:713)
  4. 	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:693)
  5. 	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:133)
  6. 	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:482)
  7. 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1416)
  8. 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:396)
  9. 	at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:142)
  10. 	at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:97)
  11. 	at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:241)
  12. 	at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138)
  13. 	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$10(ClassBasedTestDescriptor.java:377)
  14. 	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:382)
  15. 	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$11(ClassBasedTestDescriptor.java:377)
  16. 	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
  17. 	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
  18. 	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
  19. 	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
  20. 	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
  21. 	at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:310)
  22. 	at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735)
  23. 	at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734)
  24. 	at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
  25. 	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:376)
  26. 	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:289)
  27. 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  28. 	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:288)
  29. 	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:278)
  30. 	at java.base/java.util.Optional.orElseGet(Optional.java:364)
  31. 	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:277)
  32. 	at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31)
  33. 	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:105)
  34. 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  35. 	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:104)
  36. 	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:68)
  37. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123)
  38. 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  39. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123)
  40. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90)
  41. 	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
  42. 	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
  43. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
  44. 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  45. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
  46. 	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
  47. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
  48. 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  49. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
  50. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
  51. 	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
  52. 	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
  53. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
  54. 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  55. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
  56. 	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
  57. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
  58. 	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
  59. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
  60. 	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
  61. 	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
  62. 	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
  63. 	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
  64. 	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)
  65. 	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)
  66. 	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)
  67. 	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)
  68. 	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)
  69. 	at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)
  70. 	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
  71. 	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
  72. 	at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
  73. 	at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
  74. 	at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57)
  75. 	at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38)
  76. 	at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11)
  77. 	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35)
  78. 	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232)
  79. 	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55)
  80. Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.example.mapper.UserDao' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
  81. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1824)
  82. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1383)
  83. 	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1337)
  84. 	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:710)
  85. 	... 76 more

 2、解决思路

  • 原因是 springboot 版本和  mysql 依赖不兼容导致的，把springboot 版本换成 2.5.0 版本 和 mysql 依赖换成 mysql - connector - java 版本的

           

                

  • 下面是正确的依赖关系
  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.     <modelVersion>4.0.0</modelVersion>
  5.     <parent>
  6.         <groupId>org.springframework.boot</groupId>
  7.         <artifactId>spring-boot-starter-parent</artifactId>
  8.         <version>2.5.0</version>
  9.         <relativePath/> <!-- lookup parent from repository -->
  10.     </parent>
  11.  
  12.     <!-- Generated by https://start.springboot.io -->
  13.     <!-- 优质的 spring/boot/data/security/cloud 框架中文文档尽在 => https://springdoc.cn -->
  14.     <groupId>com.example</groupId>
  15.     <artifactId>mp_demo</artifactId>
  16.     <version>0.0.1-SNAPSHOT</version>
  17.     <name>mp_demo</name>
  18.     <description>mp_demo</description>
  19.     <properties>
  20.         <java.version>17</java.version>
  21.     </properties>
  22.     <dependencies>
  23.  
  24.         <dependency>
  25.             <groupId>com.baomidou</groupId>
  26.             <artifactId>mybatis-plus-boot-starter</artifactId>
  27.             <version>3.4.1</version>
  28.         </dependency>
  29.  
  30.         <dependency>
  31.             <groupId>org.springframework.boot</groupId>
  32.             <artifactId>spring-boot-starter</artifactId>
  33.         </dependency>
  34.  
  35.         <!--<dependency>
  36.             <groupId>com.mysql</groupId>
  37.             <artifactId>mysql-connector-j</artifactId>
  38.             <version>8.0.32</version>
  39.             <scope>runtime</scope>
  40.         </dependency>-->
  41.  
  42.         <dependency>
  43.             <groupId>mysql</groupId>
  44.             <artifactId>mysql-connector-java</artifactId>
  45.             <version>8.0.28</version>
  46.         </dependency>
  47.  
  48.  
  49.         <dependency>
  50.             <groupId>org.springframework.boot</groupId>
  51.             <artifactId>spring-boot-starter-test</artifactId>
  52.             <scope>test</scope>
  53.         </dependency>
  54.  
  55.  
  56.         <dependency>
  57.             <groupId>com.alibaba</groupId>
  58.             <artifactId>druid</artifactId>
  59.             <version>1.1.16</version>
  60.         </dependency>
  61.  
  62.         <dependency>
  63.             <groupId>org.projectlombok</groupId>
  64.             <artifactId>lombok</artifactId>
  65.             <version>1.18.26</version>
  66.         </dependency>
  67.  
  68.     </dependencies>
  69.  
  70.     <build>
  71.         <plugins>
  72.             <plugin>
  73.                 <groupId>org.springframework.boot</groupId>
  74.                 <artifactId>spring-boot-maven-plugin</artifactId>
  75.             </plugin>
  76.         </plugins>
  77.     </build>
  78.  
  79. </project>
  • 此时的mysql版本也可以不指定，不指定会默认使用 spring-boot-dependencies-2.5.0.pom文件中的 mysql 8.0.25 版本。
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