【发布时间】：2013-06-12 06:35:21
【问题描述】：
我想在基于 Grails 2.2.2 的 Web 应用程序中启用 OAuth2 提供程序。但是我正在努力使用 spring-security-oauth2-provider 插件。
spring-security-oauth2-provider 插件使用 spring-security-oauth2 库。我正在尝试从 Git 运行插件版本 1.0.4-SNAPSHOT，它使用 spring-security-oauth2-1.0.4.RELEASE 库。
插件安装后，我的应用程序无法启动，说它无法初始化 "oauth2ProviderFilter" bean 并出现此异常和堆栈跟踪：
| Error 2013-06-15 23:51:51,434 [localhost-startStop-1] ERROR context.GrailsContextLoader - Error initializing the application: Error creating bean with name 'oauth2ProviderFilter': Initialization of bean failed; nested exception is java.lang.reflect.MalformedParameterizedTypeException
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'oauth2ProviderFilter': Initialization of bean failed; nested exception is java.lang.reflect.MalformedParameterizedTypeException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
at org.codehaus.groovy.grails.commons.spring.ReloadAwareAutowireCapableBeanFactory.doCreateBean(ReloadAwareAutowireCapableBeanFactory.java:122)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:925)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:472)
at org.codehaus.groovy.grails.commons.spring.DefaultRuntimeSpringConfiguration.getApplicationContext(DefaultRuntimeSpringConfiguration.java:153)
at org.codehaus.groovy.grails.commons.spring.GrailsRuntimeConfigurator.configure(GrailsRuntimeConfigurator.java:170)
at org.codehaus.groovy.grails.commons.spring.GrailsRuntimeConfigurator.configure(GrailsRuntimeConfigurator.java:127)
at org.codehaus.groovy.grails.web.context.GrailsConfigUtils.configureWebApplicationContext(GrailsConfigUtils.java:121)
at org.codehaus.groovy.grails.web.context.GrailsContextLoader.initWebApplicationContext(GrailsContextLoader.java:107)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4887)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5381)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.reflect.MalformedParameterizedTypeException
at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.validateConstructorArguments(ParameterizedTypeImpl.java:60)
at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.<init>(ParameterizedTypeImpl.java:53)
at sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl.make(ParameterizedTypeImpl.java:95)
at sun.reflect.generics.factory.CoreReflectionFactory.makeParameterizedType(CoreReflectionFactory.java:105)
at sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:140)
at sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49)
at sun.reflect.generics.repository.ConstructorRepository.getParameterTypes(ConstructorRepository.java:94)
at java.lang.reflect.Method.getGenericParameterTypes(Method.java:291)
at java.beans.FeatureDescriptor.getParameterTypes(FeatureDescriptor.java:387)
at java.beans.MethodDescriptor.setMethod(MethodDescriptor.java:114)
at java.beans.MethodDescriptor.<init>(MethodDescriptor.java:72)
at java.beans.MethodDescriptor.<init>(MethodDescriptor.java:56)
at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1130)
at java.beans.Introspector.getBeanInfo(Introspector.java:414)
at java.beans.Introspector.getBeanInfo(Introspector.java:161)
at org.springframework.beans.CachedIntrospectionResults.<init>(CachedIntrospectionResults.java:217)
at org.springframework.beans.CachedIntrospectionResults.forClass(CachedIntrospectionResults.java:142)
at org.springframework.beans.BeanWrapperImpl.getCachedIntrospectionResults(BeanWrapperImpl.java:324)
at org.springframework.beans.BeanWrapperImpl.getPropertyDescriptors(BeanWrapperImpl.java:331)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.filterPropertyDescriptorsForDependencyCheck(AbstractAutowireCapableBeanFactory.java:1242)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1101)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
在查阅了 oauth2 库文档 (here) 后，我发现 oauth2ProviderFilter 是 OAuth2AuthenticationProcessingFilter 的一个实例。在检查了这个类的源代码 (github) 之后，看起来需要实例化的属性（authenticationEntryPoint、authenticationManager、authencticationDetailsSource）很少。我认为可能是依赖注入有问题，所以我尝试在resources.groovy中定义oauth2ProviderFilter bean，并引用Spring Security Core插件定义的实例。
我把它放在了我的 resources.groovy 中：
beans = {
oauth2ProviderFilter(OAuth2AuthenticationProcessingFilter){
authenticationEntryPoint = ref('basicAuthenticationEntryPoint')
authenticationManager = ref('authenticationManager')
authenticationDetailsSource = ref('authenticationDetailsSource')
}
}
那并没有解决问题，仍然有错误说这个过滤器不能被实例化。
由于我不是spring专家，你认为这个错误可能与bean创建过程中的依赖注入有关吗？问题可能出在哪里？
spring-security-oauth2 库是否有可能是为 spring 框架版本设计的，而 grails 可能使用不同的框架版本，这可能会导致问题？
我可以采取哪些后续步骤来找出问题的原因并最终解决问题？
【问题讨论】：
-
我知道这是一个老问题，但您是否还记得您是如何解决的？我现在有完全相同的问题（grails 2.2.4，：spring-security-oauth2-provider:1.0.5.2）
标签： spring grails spring-security oauth-2.0