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自定義查詢報(bào)錯(cuò)

其他一切正常，但在findByAge();這里報(bào)錯(cuò)了。

public?interface?TestRepository?extends?JpaRepository<Test,Integer>?{
????//通過(guò)年齡查找
????public?List<Test>?FindByAge(Integer?age);
}

------------------------------------------------------------------

@GetMapping(value?=?"/ByAge")
public??List<Test>?findByAge(@RequestParam("age")?Integer?age){
????return?testRepository.FindByAge(age);
}

報(bào)錯(cuò)：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'testController': Unsatisfied dependency expressed through field 'testRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.List com.example.demo.Repository.TestRepository.FindByName(java.lang.String)! No property findByName found for type Test!

求老師解答。。。百度兩小時(shí)沒(méi)找到答案

正在回答

6 回答

dao層中的方法名稱錯(cuò)了吧 findByAge

0 回復(fù) 有任何疑惑可以回復(fù)我~ 
@GetMapping(value?=?"/getGirls/age/{age}")
public?List<Girl>?findGirlByAge(@PathVariable("age")Integer?age){
????return?girlRepository.findByAge(age);
}

上面的注解改下試試

0 回復(fù) 有任何疑惑可以回復(fù)我~

能把你的這個(gè)類貼出來(lái)看一下嘛，[com.gril.entity.Prson]，我也是小白，一起學(xué)習(xí)

0 回復(fù) 有任何疑惑可以回復(fù)我~
#1

兔老板 提問(wèn)者

這個(gè)類就是老師的girl實(shí)體類。封裝get和set還有無(wú)參方法的那個(gè)類。
2018-08-21 回復(fù) 有任何疑惑可以回復(fù)我~

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'prsonController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'prsonRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.List com.gril.Repository.PrsonRepository.findByAge(java.lang.Integer)! Unable to locate Attribute? with the the given name [age] on this ManagedType [com.gril.entity.Prson]

at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:321) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1341) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:398) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:330) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1258) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at com.gril.GrilApplication.main(GrilApplication.java:10) [classes/:na]

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'prsonRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.List com.gril.Repository.PrsonRepository.findByAge(java.lang.Integer)! Unable to locate Attribute? with the the given name [age] on this ManagedType [com.gril.entity.Prson]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1699) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:573) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:514) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:485) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:619) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:177) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:318) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

... 17 common frames omitted

Caused by: java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.List com.gril.Repository.PrsonRepository.findByAge(java.lang.Integer)! Unable to locate Attribute? with the the given name [age] on this ManagedType [com.gril.entity.Prson]

at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.<init>(PartTreeJpaQuery.java:82) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:103) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:208) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:79) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lookupQuery(RepositoryFactorySupport.java:553) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(RepositoryFactorySupport.java:546) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_181]

at java.util.Iterator.forEachRemaining(Iterator.java:116) ~[na:1.8.0_181]

at java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Collections.java:1049) ~[na:1.8.0_181]

at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) ~[na:1.8.0_181]

at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[na:1.8.0_181]

at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_181]

at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_181]

at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_181]

at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_181]

at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.mapMethodsToQuery(RepositoryFactorySupport.java:548) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$new$0(RepositoryFactorySupport.java:538) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at java.util.Optional.map(Optional.java:215) ~[na:1.8.0_181]

at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:538) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:317) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$3(RepositoryFactoryBeanSupport.java:286) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.util.Lazy.getNullable(Lazy.java:141) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.util.Lazy.get(Lazy.java:63) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:289) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:102) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1758) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1695) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

... 29 common frames omitted

Caused by: java.lang.IllegalArgumentException: Unable to locate Attribute? with the the given name [age] on this ManagedType [com.gril.entity.Prson]

at org.hibernate.metamodel.internal.AbstractManagedType.checkNotNull(AbstractManagedType.java:128) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]

at org.hibernate.metamodel.internal.AbstractManagedType.getAttribute(AbstractManagedType.java:113) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]

at org.springframework.data.jpa.repository.query.QueryUtils.toExpressionRecursively(QueryUtils.java:587) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.JpaQueryCreator$PredicateBuilder.getTypedPath(JpaQueryCreator.java:378) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.JpaQueryCreator$PredicateBuilder.build(JpaQueryCreator.java:301) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.JpaQueryCreator.toPredicate(JpaQueryCreator.java:206) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.JpaQueryCreator.create(JpaQueryCreator.java:119) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.JpaQueryCreator.create(JpaQueryCreator.java:56) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.repository.query.parser.AbstractQueryCreator.createCriteria(AbstractQueryCreator.java:119) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.repository.query.parser.AbstractQueryCreator.createQuery(AbstractQueryCreator.java:95) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.repository.query.parser.AbstractQueryCreator.createQuery(AbstractQueryCreator.java:81) ~[spring-data-commons-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.PartTreeJpaQuery$QueryPreparer.<init>(PartTreeJpaQuery.java:145) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.PartTreeJpaQuery$CountQueryPreparer.<init>(PartTreeJpaQuery.java:268) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

at org.springframework.data.jpa.repository.query.PartTreeJpaQuery.<init>(PartTreeJpaQuery.java:77) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]

... 55 common frames omitted



Process finished with exit code 1


0 回復(fù) 有任何疑惑可以回復(fù)我~
#1

兔老板 提問(wèn)者

原有的查詢方法是可以查詢的，沒(méi)有問(wèn)題。但是到了自己創(chuàng)建方法查詢就出錯(cuò)了。查了一下午的原因也沒(méi)查到。重建項(xiàng)目，依然是這個(gè)錯(cuò)誤。要瘋了。
2018-08-20 回復(fù) 有任何疑惑可以回復(fù)我~

把

FindByAge改成findByAge試試
0 回復(fù) 有任何疑惑可以回復(fù)我~
#1

兔老板 提問(wèn)者

試過(guò)了。
2018-08-20 回復(fù) 有任何疑惑可以回復(fù)我~

沒(méi)注入 testRepository?

@Autowired 或者 @Resource

private TestRepository testRepository;

0 回復(fù) 有任何疑惑可以回復(fù)我~
#1

兔老板 提問(wèn)者

注入了。@Autowired
2018-08-20 回復(fù) 有任何疑惑可以回復(fù)我~

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