Java-MongoDB Spring数据存储库-缓存方法
作者：互联网
我需要使用spring @Cacheable注解来缓存对MongoDB的调用：
public interface SiteRepository extends PagingAndSortingRepository<Site, String>{
@Cacheable
List<Site> findByStatus(Site.Status status);
}
不幸的是,使用@Cacheable注释接口中的任何方法都会导致以下异常：
Nov 22, 2014 7:11:06 PM org.apache.catalina.core.ApplicationContext
log SEVERE: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name ‘example’: Injection of autowired dependencies
failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Could not
autowire field: com.example.repositories.mongodb.SiteRepository
com.example.siteRepo; nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name ‘siteRepository’: Post-processing of
FactoryBean’s singleton object failed; nested exception is
org.springframework.aop.framework.AopConfigException: Could not
generate CGLIB subclass of class [class com.sun.proxy.$Proxy92]:
Common causes of this problem include using a final class or a
non-visible class; nested exception is
java.lang.IllegalArgumentException: Cannot subclass final class class
com.sun.proxy.$Proxy92 at
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1147)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:191)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:633)
at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
at
org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651)
at
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:602)
at
org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665)
at
org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:521)
at
org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:462)
at
org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
at javax.servlet.GenericServlet.init(GenericServlet.java:160) at
org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1189)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1103)
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1010)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4935)
at
org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5262)
at
org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5257)
at java.util.concurrent.FutureTask.run(Unknown Source) at
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at
java.lang.Thread.run(Unknown Source) Caused by:
org.springframework.beans.factory.BeanCreationException: Could not
autowire field: com.example.repositories.mongodb.SiteRepository
com.example.siteRepo; nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name ‘siteRepository’: Post-processing of
FactoryBean’s singleton object failed; nested exception is
org.springframework.aop.framework.AopConfigException: Could not
generate CGLIB subclass of class [class com.sun.proxy.$Proxy92]:
Common causes of this problem include using a final class or a
non-visible class; nested exception is
java.lang.IllegalArgumentException: Cannot subclass final class class
com.sun.proxy.$Proxy92 at
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:517)
at
org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:286)
… 27 more Caused by:
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name ‘siteRepository’: Post-processing of
FactoryBean’s singleton object failed; nested exception is
org.springframework.aop.framework.AopConfigException: Could not
generate CGLIB subclass of class [class com.sun.proxy.$Proxy92]:
Common causes of this problem include using a final class or a
non-visible class; nested exception is
java.lang.IllegalArgumentException: Cannot subclass final class class
com.sun.proxy.$Proxy92 at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:115)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1465)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:304)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:191)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:917)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:860)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:775)
at
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:489)
… 29 more Caused by:
org.springframework.aop.framework.AopConfigException: Could not
generate CGLIB subclass of class [class com.sun.proxy.$Proxy92]:
Common causes of this problem include using a final class or a
non-visible class; nested exception is
java.lang.IllegalArgumentException: Cannot subclass final class class
com.sun.proxy.$Proxy92 at
org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:218)
at
org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:109)
at
org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:477)
at
org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:362)
at
org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:322)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:409)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.postProcessObjectFromFactoryBean(AbstractAutowireCapableBeanFactory.java:1656)
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:112)
… 36 more Caused by: java.lang.IllegalArgumentException: Cannot
subclass final class class com.sun.proxy.$Proxy92 at
org.springframework.cglib.proxy.Enhancer.generateClass(Enhancer.java:446)
at
org.springframework.cglib.transform.TransformingClassGenerator.generateClass(TransformingClassGenerator.java:33)
at
org.springframework.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
at
org.springframework.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216)
at
org.springframework.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
at org.springframework.cglib.proxy.Enhancer.create(Enhancer.java:285)
at
org.springframework.aop.framework.CglibAopProxy.getProxy(CglibAopProxy.java:206)
… 43 more
我正在寻找一种方法来缓存对数据库的调用(这非常昂贵).任何想法？
解决方法:
从Spring documentation的缓存中：
Spring recommends that you only annotate concrete classes (and methods
of concrete classes) with the @Cache* annotation, as opposed to
annotating interfaces. You certainly can place the @Cache* annotation
on an interface (or an interface method), but this works only as you
would expect it to if you are using interface-based proxies. The fact
that Java annotations are not inherited from interfaces means that if
you are using class-based proxies ( proxy-target-class=”true”) or the
weaving-based aspect ( mode=”aspectj”), then the caching settings are
not recognized by the proxying and weaving infrastructure, and the
object will not be wrapped in a caching proxy, which would be
decidedly bad.
您的缓存配置可能与Spring在运行时创建存储库接口的实现的方式发生冲突.
您可以查看缓存配置,使其与Spring数据配合使用(有关不同的缓存配置选项,请参见here).
或者,您可以这样做：
public interface SiteRepository extends PagingAndSortingRepository<Site, String>{
List<Site> findByStatus(Site.Status status);
}
@Service
public class CachedSiteService {
@Autowired
private SiteRepository siteRepository;
@Cacheable("sites")
List<Site> findByStatus(Site.Status status) {
return siteRepository.findByStatus(status);
}
}
标签：mongodb,spring-data,spring-data-mongodb,spring,java 来源： https://codeday.me/bug/20191028/1956144.html