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java - Spring Boot @SpringBootTest 给出 NoClassDefFoundError: ...DataAccessException

问题描述

我无法解决这个问题。我有一个spring boot应用程序。

带有注释的主类

@SpringBootApplication.

带有注释的测试类：

@RunWith(SpringRunner.class)
@SpringBootTest

一切都很好，直到我filter-configurer在应用程序中添加一个类：

@Configuration
public class YadaYadaFilterConfigurer
{
    @Bean
    public FilterRegistrationBean<YadaYadaFilter> createYadaYadaFilter() 
    {...}

    ...
}

繁荣！

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.servlet.FilterRegistrationBean]: 
...
nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:...org.springframework.boot/spring-boot-test-autoconfigure/2.0.6.RELEASE/b0eb15474e795850dfa59b01ee6a83d7a39e3645/spring-boot-test-autoconfigure-2.0.6.RELEASE.jar!/org/springframework/boot/test/autoconfigure/jdbc/JdbcTest.class]; nested exception is java.lang.NoClassDefFoundError: org/springframework/dao/DataAccessException

我的依赖：

dependencies {
    implementation('org.springframework.boot:spring-boot-starter-web')
    testImplementation('org.springframework.boot:spring-boot-starter-test')
}

一些澄清。剥离，以便我只有这个测试类：

@RunWith(SpringRunner.class)
@SpringBootTest
public class JsonvalidationApplicationTests {

    @Test
    public void contextLoads() {
    }
}

如果注释掉 @SpringBootTest 那么一切正常。似乎这个注释引入了对更多依赖项的需求？

更多堆栈跟踪：

原因：org.springframework.beans.BeanInstantiationException：无法实例化[org.springframework.boot.web.servlet.FilterRegistrationBean]：工厂方法'createyadayadaFilter'抛出异常；嵌套异常是 org.springframework.beans.factory.BeanDefinitionStoreException：无法读取候选组件类：URL [jar:file:/C:/Users/66122872/.gradle/caches/modules-2/files-2.1/org.springframework .boot/spring-boot-test-autoconfigure/2.0.6.RELEASE/b0eb15474e795850dfa59b01ee6a83d7a39e3645/spring-boot-test-autoconfigure-2.0.6.RELEASE.jar!/org/springframework/boot/test/autoconfigure/jdbc/JdbcTest。班级]; 嵌套异常是 java.lang.NoClassDefFoundError: org/springframework/dao/DataAccessException at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java: 185) 在 org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:583) ... 67 更多原因：org.springframework.beans.factory.BeanDefinitionStoreException：无法读取候选组件类：URL [ jar:file:/C:/Users/66122872/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-test-autoconfigure/2.0.6.RELEASE/b0eb15474e795850dfa59b01ee6a83d7a39e3645/spring-boot -test-autoconfigure-2.0.6.RELEASE.jar!/org/springframework/boot/test/autoconfigure/jdbc/JdbcTest.class]; 嵌套异常是 java.lang.NoClassDefFoundError: org/springframework/dao/DataAccessException BeanDefinitionStoreException：无法读取候选组件类：URL [jar:file:/C:/Users/66122872/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-test-autoconfigure/ 2.0.6.RELEASE/b0eb15474e795850dfa59b01ee6a83d7a39e3645/spring-boot-test-autoconfigure-2.0.6.RELEASE.jar!/org/springframework/boot/test/autoconfigure/jdbc/JdbcTest.class]；嵌套异常是 java.lang.NoClassDefFoundError: org/springframework/dao/DataAccessException BeanDefinitionStoreException：无法读取候选组件类：URL [jar:file:/C:/Users/66122872/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-test-autoconfigure/ 2.0.6.RELEASE/b0eb15474e795850dfa59b01ee6a83d7a39e3645/spring-boot-test-autoconfigure-2.0.6.RELEASE.jar!/org/springframework/boot/test/autoconfigure/jdbc/JdbcTest.class]；嵌套异常是 java.lang.NoClassDefFoundError: org/springframework/dao/DataAccessException

标签： javaspringspring-boot

解决方案

抱歉，经过更多调查后，我发现问题出在我的 FilterRegistrationBean 中。

在这里抛出异常。

ClassPathScanningCandidateComponentProvider provider = createComponentScanner();
provider.findCandidateComponents("").stream()...

我将回答这个线程并创建一个新线程。

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