Spring Boot - Spring Security 依赖问题：UserDetailsS​​ervice.class 无法打开，因为它不存在

Question

直到今天我的应用程序运行良好，但突然出现了这个异常，我不知道该如何解决。

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.company.app.Application]; nested exception is java.io.FileNotFoundException: class path resource [org/springframework/security/core/userdetails/UserDetailsService.class] cannot be opened because it does not exist
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:180) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]

.....
Caused by: java.io.FileNotFoundException: class path resource [org/springframework/security/core/userdetails/UserDetailsService.class] cannot be opened because it does not exist
at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:177) ~[spring-core-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:51) ~[spring-core-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:99) ~[spring-core-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:89) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:76) ~[spring-boot-2.0.0.M3.jar:2.0.0.M3]
at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:94) ~[spring-core-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:703) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getInterfaces(ConfigurationClassParser.java:886) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser.processInterfaces(ConfigurationClassParser.java:373) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:321) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:190) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:293) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:198) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:166) ~[spring-context-5.0.0.RC3.jar:5.0.0.RC3]
... 43 common frames omitted

我评论了实现UserDetailsService 的类，但现在我有这个例外：

Caused by: java.lang.ClassNotFoundException: org.springframework.security.core.GrantedAuthority
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1269) ~[catalina.jar:9.0.0.M22]
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1104) ~[catalina.jar:9.0.0.M22]
... 80 common frames omitted

Spring Security 依赖项似乎造成了一些麻烦。

我的 pom.xml（摘要）：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.0.M3</version>
    <relativePath/> 
</parent>

<dependencies>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.security.oauth</groupId>
        <artifactId>spring-security-oauth2</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

</dependencies>

我的实现（即使这不是问题）：

@Service
public class CustomUserDetailsService implements UserDetailsService {

  @Autowired
  private SecurityService securityService;

   @Override
   public UserDetails loadUserByUsername( String username ) throws UsernameNotFoundException {
    return new CustomUserDetails( securityService.findUserCredentialsByUsername( username ) );
  }
}

编辑

这看起来很奇怪，因为我可以运行我的测试并且所有这些测试都从主类Application 加载上下文。测试不会失败，但是当我在 Tomcat 中运行应用程序时，它会失败！

有什么想法吗？谢谢

Answer 1

您的类路径似乎已过期，因为未找到 UserService.class 和 GrantedAuthority.class 文件。您可以通过更新 Maven 依赖项并确保依赖项位于类路径中来解决此问题。

Answer 2

也许您的本地 maven 存储库中有损坏的 jar 文件。这可能会导致错误，因为 maven 无法访问这些 jar 中的类文件。