Question

这是我的代码段

@Bean
@ServiceActivator(inputChannel = "topicChannel", outputChannel="responseChannel")
public Employee getEmpDetails() throws Exception {
      Expression query = new LiteralExpression("{'name' : '*****'}");
      MongoDbMessageSource source = new MongoDbMessageSource(mongoDbFactory(), query);
      source.setEntityClass(Employee.class);
      source.afterPropertiesSet();
      List<Employee> resluts =((List<Employee>)source.receive().getPayload());
      return resluts.get(0);
    }

以下是错误

java.lang.RuntimeException：没有beanfactory 在org.springframework.integration.expression.ExpressionUtils.createStandardEvaluationContext（ExpressionUtils.java:79）在org.springframework.integration.mongodb.inbound.MongoDbMessageSource.onInit（MongoDbMessageSource.java:176）在org.springframework.integration.context.IntegrationObjectSupport.afterPropertiesSet（IntegrationObjectSupport.java:150）在com.gap.si.configuratoin.MongoDBConfiguration.getEmpDetails（MongoDBConfiguration.java:48）在com.gap.si.configuratoin.MongoDBConfiguration $$ EnhancerBySpringCGLIB $$ 8e22c38.CGLIB $ getEmpDetails $ 3（）在com.gap.si.configuratoin.MongoDBConfiguration $$ EnhancerBySpringCGLIB $$ 8e22c38 $$ FastClassBySpringCGLIB $$ 99782c25.invoke（）在org.springframework.cglib.proxy.MethodProxy.invokeSuper（MethodProxy.java:228） at org.springframework.context.annotation.ConfigurationClassEnhancer $ BeanMethodInterceptor.intercept（ConfigurationClassEnhancer.java:309）在com.gap.si.configuratoin.MongoDBConfiguration $$ EnhancerBySpringCGLIB $$ 8e22c38.getEmpDetails（） at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method） at sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62） at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）在java.lang.reflect.Method.invoke（Method.java:483）在org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate（SimpleInstantiationStrategy.java:162）在org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod（ConstructorResolver.java:588）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod（AbstractAutowireCapableBeanFactory.java:1119）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance（AbstractAutowireCapableBeanFactory.java:1014）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:504）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:476） at org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:303）在org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:230）在org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:299）在org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:194） at org.springframework.integration.config.annotation.AbstractMethodAnnotationPostProcessor.resolveTargetBeanFromMethodWithBeanAnnotation（AbstractMethodAnnotationPostProcessor.java:362）在org.springframework.integration.config.annotation.ServiceActivatorAnnotationPostProcessor.createHandler（ServiceActivatorAnnotationPostProcessor.java:54）在org.springframework.integration.config.annotation.AbstractMethodAnnotationPostProcessor.postProcess（AbstractMethodAnnotationPostProcessor.java:117）在org.springframework.integration.config.annotation.MessagingAnnotationPostProcessor $ 1.doWith（MessagingAnnotationPostProcessor.java:151）在org.springframework.util.ReflectionUtils.doWithMethods（ReflectionUtils.java:495）在org.springframework.util.ReflectionUtils.doWithMethods（ReflectionUtils.java:502）在org.springframework.integration.config.annotation.MessagingAnnotationPostProcessor.postProcessAfterInitialization（MessagingAnnotationPostProcessor.java:131）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization（AbstractAutowireCapableBeanFactory.java:422）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1579）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:539）在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:476） at org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:303）在org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:230）在org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:299）在org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:194） at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons（DefaultListableBeanFactory.java:755）在org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:757）在org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:480） at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh（EmbeddedWebApplicationContext.java:118）在org.springframework.boot.SpringApplication.refresh（SpringApplication.java:686）在org.springframework.boot.SpringApplication.run（SpringApplication.java:320）在org.springframework.boot.SpringApplication.run（SpringApplication.java:957）在org.springframework.boot.SpringApplication.run（SpringApplication.java:946）在com.gap.si.configuratoin.Application.main（Application.java:16）

Answer 1

您也应该将rmdir定义为MongoDbMessageSource，以便框架正确初始化它;调用@Bean是不够的。

此外，当afterPropertiesSet()为@ServiceActivator时，bean类型必须为@Bean。对于POJO MessageHandler方法，请使用@ServiceActivator。

Spring集成中的MongodbMessageSource抛出错误而没有beanFactory

1 个答案: