java – 为什么使用@Transactional方法的类不能自动装配?
我正在使用带有WAFFLE过滤器的
Spring Security,该过滤器针对ActiveDirectory服务器对用户进行身份验证.
我创建了一个额外的过滤器,用于根据我的数据库对用户进行身份验证(它只是检查是否 以前经过身份验证的用户在数据库中).这是使用UserDetailsS??ervice的实现完成的. 这个组合一直有效,直到我向服务添加了@Transactional注释方法.现在的服务 这是服务类: @Service public class UserService implements UserDetailsService { @Autowired private UserRepository userRepository; @Autowired private LdapUserDao ldapUserDao; @Override public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { return getUserByUsername(username); } public User getUserByUsername(final String username) { final User databaseUser = userRepository.findByUsername(username); final User ldapUser = ldapUserDao.findByUsername(username); if (null == databaseUser || null == ldapUser) { return null; } final User user = mergeUsers(databaseUser,ldapUser); return user; } public List<User> getAllUsers() { return userRepository.findAll(); } @Transactional public void storeUser(final User user) { userRepository.save(user); } private User mergeUsers(final User database,final User ldap) { final User mergedUser = new User(); mergedUser.setId(database.getId()); mergedUser.setUsername(database.getUsername()); mergedUser.setEnabled(database.isEnabled()); mergedUser.setRoles(database.getRoles()); mergedUser.setEmail(ldap.getEmail()); mergedUser.setFirstName(ldap.getFirstName()); mergedUser.setLastName(ldap.getLastName()); mergedUser.setLocale(ldap.getLocale()); return mergedUser; } } 这是过滤器: public class WaffleAuthenticationWrapperFilter extends GenericFilterBean { @Autowired private UserService userService; @Override public void doFilter(ServletRequest request,ServletResponse response,FilterChain chain) throws IOException,ServletException { final SecurityContext securityContext = SecurityContextHolder.getContext(); final Authentication authentication = securityContext.getAuthentication(); if (null == authentication || !(authentication instanceof WindowsAuthenticationToken)) { chain.doFilter(request,response); return; } final WindowsAuthenticationToken waffleAuthentication = (WindowsAuthenticationToken) authentication; final String username = waffleAuthentication.getName().replaceAll("^.*\",""); final User user = userService.getUserByUsername(username); if (null == user) { securityContext.setAuthentication(null); return; } final WaffleAuthenticationWrapper authenticationWrapper = new WaffleAuthenticationWrapper(waffleAuthentication,user); securityContext.setAuthentication(authenticationWrapper); chain.doFilter(request,response); } } 一旦我删除了@Transactional,项目就会再次编译.为什么不能将方法注释为@Transactional? 这是堆栈跟踪: Exception in thread "main" org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:474) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686) at org.springframework.boot.SpringApplication.run(SpringApplication.java:320) at org.springframework.boot.SpringApplication.run(SpringApplication.java:957) at org.springframework.boot.SpringApplication.run(SpringApplication.java:946) at my.project.App.main(App.java:13) Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:98) at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:75) at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:378) at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:155) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:157) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130) ... 7 more Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.setFilterChainProxySecurityConfigurer(org.springframework.security.config.annotation.ObjectPostProcessor,java.util.List) throws java.lang.Exception; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webSecurityConfig': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.auth.WaffleAuthenticationWrapperFilter my.project.config.WebSecurityConfig.waffleAuthenticationWrapperFilter; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'waffleAuthenticationWrapperFilter': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.services.UserService my.project.auth.WaffleAuthenticationWrapperFilter.userService; nested exception is java.lang.IllegalArgumentException: Can not set my.project.services.UserService field my.project.auth.WaffleAuthenticationWrapperFilter.userService to com.sun.proxy.$Proxy84 at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1210) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:368) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1119) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1014) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.boot.context.embedded.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:209) at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addAsRegistrationBean(ServletContextInitializerBeans.java:165) at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addAsRegistrationBean(ServletContextInitializerBeans.java:160) at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addAdaptableBeans(ServletContextInitializerBeans.java:143) at org.springframework.boot.context.embedded.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:74) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getServletContextInitializerBeans(EmbeddedWebApplicationContext.java:234) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.selfInitialize(EmbeddedWebApplicationContext.java:221) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.access$000(EmbeddedWebApplicationContext.java:84) at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext$1.onStartup(EmbeddedWebApplicationContext.java:206) at org.springframework.boot.context.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:54) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5151) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1399) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.setFilterChainProxySecurityConfigurer(org.springframework.security.config.annotation.ObjectPostProcessor,java.util.List) throws java.lang.Exception; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webSecurityConfig': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.auth.WaffleAuthenticationWrapperFilter my.project.config.WebSecurityConfig.waffleAuthenticationWrapperFilter; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'waffleAuthenticationWrapperFilter': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.services.UserService my.project.auth.WaffleAuthenticationWrapperFilter.userService; nested exception is java.lang.IllegalArgumentException: Can not set my.project.services.UserService field my.project.auth.WaffleAuthenticationWrapperFilter.userService to com.sun.proxy.$Proxy84 at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:649) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ... 35 more Caused by: org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webSecurityConfig': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.auth.WaffleAuthenticationWrapperFilter my.project.config.WebSecurityConfig.waffleAuthenticationWrapperFilter; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'waffleAuthenticationWrapperFilter': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.services.UserService my.project.auth.WaffleAuthenticationWrapperFilter.userService; nested exception is java.lang.IllegalArgumentException: Can not set my.project.services.UserService field my.project.auth.WaffleAuthenticationWrapperFilter.userService to com.sun.proxy.$Proxy84 at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:164) at org.springframework.beans.factory.support.AbstractBeanFactory.evaluateBeanDefinitionString(AbstractBeanFactory.java:1365) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:957) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:606) ... 37 more Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webSecurityConfig': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.auth.WaffleAuthenticationWrapperFilter my.project.config.WebSecurityConfig.waffleAuthenticationWrapperFilter; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'waffleAuthenticationWrapperFilter': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.services.UserService my.project.auth.WaffleAuthenticationWrapperFilter.userService; nested exception is java.lang.IllegalArgumentException: Can not set my.project.services.UserService field my.project.auth.WaffleAuthenticationWrapperFilter.userService to com.sun.proxy.$Proxy84 at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1210) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:523) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:512) at org.springframework.security.config.annotation.web.configuration.AutowiredWebSecurityConfigurersIgnoreParents.getWebSecurityConfigurers(AutowiredWebSecurityConfigurersIgnoreParents.java:52) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.expression.spel.support.ReflectiveMethodExecutor.execute(ReflectiveMethodExecutor.java:112) at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:129) at org.springframework.expression.spel.ast.MethodReference.access$000(MethodReference.java:49) at org.springframework.expression.spel.ast.MethodReference$MethodValueRef.getValue(MethodReference.java:342) at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:88) at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:120) at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:242) at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:161) ... 41 more Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.auth.WaffleAuthenticationWrapperFilter my.project.config.WebSecurityConfig.waffleAuthenticationWrapperFilter; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'waffleAuthenticationWrapperFilter': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.services.UserService my.project.auth.WaffleAuthenticationWrapperFilter.userService; nested exception is java.lang.IllegalArgumentException: Can not set my.project.services.UserService field my.project.auth.WaffleAuthenticationWrapperFilter.userService to com.sun.proxy.$Proxy84 at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ... 63 more Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'waffleAuthenticationWrapperFilter': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.services.UserService my.project.auth.WaffleAuthenticationWrapperFilter.userService; nested exception is java.lang.IllegalArgumentException: Can not set my.project.services.UserService field my.project.auth.WaffleAuthenticationWrapperFilter.userService to com.sun.proxy.$Proxy84 at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1210) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1127) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1044) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533) ... 65 more Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private my.project.services.UserService my.project.auth.WaffleAuthenticationWrapperFilter.userService; nested exception is java.lang.IllegalArgumentException: Can not set my.project.services.UserService field my.project.auth.WaffleAuthenticationWrapperFilter.userService to com.sun.proxy.$Proxy84 at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561) at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ... 76 more Caused by: java.lang.IllegalArgumentException: Can not set my.project.services.UserService field my.project.auth.WaffleAuthenticationWrapperFilter.userService to com.sun.proxy.$Proxy84 at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) at sun.reflect.UnsafeObjectFieldAccessorImpl.set(Unknown Source) at java.lang.reflect.Field.set(Unknown Source) at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:557) ... 78 more 解决方法
要应用AOP spring使用代理,它们有两种版本的JDK Dynamic Proxies(基于接口)和基于CgLIB的代理(基于类).默认情况下,Spring将JDK Dynamic Proxies用于实现1个或更多接口的类.
在运行时,您将获得一个动态创建的对象(代理),该对象实现它所包装的类(UserService)的所有接口(UserDetailsS??ervice).因此动态创建的对象是UserDetailsS??ervice而不是UserService. 因此,代理无法强制转换为UserService的错误. 你有(至少)两种方法来解决这个问题 >程序到接口 程序到接口 在调用getUserByUsername时,您需要创建一个新接口并实现它以及UserDetailsS??ervice. public interface UserService { User getUserByUsername(String username); void storeUser(User user); List<User> findAllUsers(); } @Service("userService") public class UserServiceImpl implements UserDetailsService,UserService { ... } 如果你这样做,你可以保持你的过滤器不变,因为UserService现在只是一个接口.如果为接口指定其他名称,则还必须将过滤器中的UserService字段更改为该类型. 启用基于类的代理 当您使用spring boot时,启用基于类的代理就像在application.properties文件中添加属性一样简单. spring.aop.proxy-target-class=true 这将创建一个基于类的代理,这样您就可以保持过滤器的代码不变. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |