Spring Data JPA中的分页问题

Spring Data JPA中的分页问题,第1张

概述我正在尝试Spring数据JPA,在启动我的项目时,我收到以下错误:Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'subjectRepository': FactoryBean threw exceptio

我正在尝试Spring数据JPA,在启动我的项目时,我收到以下错误:

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'subjectRepository': factorybean threw exception on object creation; nested exception is java.lang.IllegalArgumentException: Paging query needs to have a Pageable parameter!    at org.springframework.beans.factory.support.factorybeanRegistrySupport.doGetobjectFromfactorybean(factorybeanRegistrySupport.java:149)    at org.springframework.beans.factory.support.factorybeanRegistrySupport.getobjectFromfactorybean(factorybeanRegistrySupport.java:102)    at org.springframework.beans.factory.support.Abstractbeanfactory.getobjectForBeanInstance(Abstractbeanfactory.java:1441)    at org.springframework.beans.factory.support.Abstractbeanfactory.doGetBean(Abstractbeanfactory.java:305)    at org.springframework.beans.factory.support.Abstractbeanfactory.getBean(Abstractbeanfactory.java:193)    at org.springframework.beans.factory.support.Defaultlistablebeanfactory.findautowireCandIDates(Defaultlistablebeanfactory.java:848)    at org.springframework.beans.factory.support.Defaultlistablebeanfactory.doResolveDependency(Defaultlistablebeanfactory.java:790)    at org.springframework.beans.factory.support.Defaultlistablebeanfactory.resolveDependency(Defaultlistablebeanfactory.java:707)    at org.springframework.beans.factory.support.ConstructorResolver.resolveautowiredArgument(ConstructorResolver.java:795)    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:723)    at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:196)    at org.springframework.beans.factory.support.AbstractautowireCapablebeanfactory.autowireConstructor(AbstractautowireCapablebeanfactory.java:1035)    at org.springframework.beans.factory.support.AbstractautowireCapablebeanfactory.createBeanInstance(AbstractautowireCapablebeanfactory.java:939)    at org.springframework.beans.factory.support.AbstractautowireCapablebeanfactory.doCreateBean(AbstractautowireCapablebeanfactory.java:485)    at org.springframework.beans.factory.support.AbstractautowireCapablebeanfactory.createBean(AbstractautowireCapablebeanfactory.java:456)    at org.springframework.beans.factory.support.Abstractbeanfactory.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:197)    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:442)    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:416)    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourcetoInject(CommonAnnotationBeanPostProcessor.java:549)    at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:150)    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcesspropertyValues(CommonAnnotationBeanPostProcessor.java:303)    at org.springframework.beans.factory.support.AbstractautowireCapablebeanfactory.populateBean(AbstractautowireCapablebeanfactory.java:1106)    at org.springframework.beans.factory.support.AbstractautowireCapablebeanfactory.doCreateBean(AbstractautowireCapablebeanfactory.java:517)    at org.springframework.beans.factory.support.AbstractautowireCapablebeanfactory.createBean(AbstractautowireCapablebeanfactory.java:456)    at org.springframework.beans.factory.support.Abstractbeanfactory.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:585)    at org.springframework.context.support.AbstractApplicationContext.finishbeanfactoryInitialization(AbstractApplicationContext.java:913)    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:384)    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)    at org.springframework.web.context.ContextLoaderListener.contextinitialized(ContextLoaderListener.java:111)    at org.eclipse.jetty.server.handler.ContextHandler.callContextinitialized(ContextHandler.java:672)    at org.eclipse.jetty.servlet.ServletContextHandler.callContextinitialized(ServletContextHandler.java:403)    at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:664)    at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:239)    at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1212)    at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:610)    at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:453)    at org.mortbay.jetty.plugin.JettyWebAppContext.doStart(JettyWebAppContext.java:234)    at org.eclipse.jetty.util.component.AbstractlifeCycle.start(AbstractlifeCycle.java:59)    at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:224)    at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:167)    at org.eclipse.jetty.util.component.AbstractlifeCycle.start(AbstractlifeCycle.java:59)    at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:224)    at org.eclipse.jetty.util.component.AbstractlifeCycle.start(AbstractlifeCycle.java:59)    at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:89)    at org.eclipse.jetty.server.Server.doStart(Server.java:262)    at org.mortbay.jetty.plugin.JettyServer.doStart(JettyServer.java:67)    at org.eclipse.jetty.util.component.AbstractlifeCycle.start(AbstractlifeCycle.java:59)    at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:333)    at org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:273)    at org.mortbay.jetty.plugin.JettyRunMojo.execute(JettyRunMojo.java:548)    at org.apache.maven.plugin.DefaultBuildpluginManager.executeMojo(DefaultBuildpluginManager.java:107)    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)    at org.apache.maven.lifecycle.internal.lifecycleModuleBuilder.buildProject(lifecycleModuleBuilder.java:84)    at org.apache.maven.lifecycle.internal.lifecycleModuleBuilder.buildProject(lifecycleModuleBuilder.java:59)    at org.apache.maven.lifecycle.internal.lifecycleStarter.singleThreadedBuild(lifecycleStarter.java:183)    at org.apache.maven.lifecycle.internal.lifecycleStarter.execute(lifecycleStarter.java:161)    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:534)    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)    at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    at java.lang.reflect.Method.invoke(Method.java:601)    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)Caused by: java.lang.IllegalArgumentException: Paging query needs to have a Pageable parameter!    at org.springframework.util.Assert.isTrue(Assert.java:65)    at org.springframework.data.repository.query.queryMethod.

这是我的存储库:

public interface SubjectRepository extends Repository

正如您所看到的,我已经评论了使用pageble的方法,并将父接口从jparepository更改为repository.But我仍然收到上述错误消息.有没有与persistence.xml相关的东西?
我的persistence.xml

我的spring数据jpa配置:

最佳答案您正在阅读错误消息错误:

Paging query needs to have a Pageable parameter!

你注释掉的方法是正确的,剩下的方法是错误的!如果你想返回Page< PSubject>从查询方法来看,此方法必须具有Pageable参数.这是可以理解的:如果您询问特定结果页面,则必须首先定义您感兴趣的页面.

Page

或者如果您对所有结果感兴趣,请使用List< PSubject>:

Page
总结

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