创建名称为“ Controller”的bean时出错：通过字段“ Repository”表示不满意的依赖性

时间：2019-10-02 14:44:18

标签： spring hibernate spring-boot

最近几天，我一直在尝试使用spring-boot进行一些应用程序并休眠，我可以更正所有错误，但是我无法理解这一错误...

我创建了3个程序包：包含我的4个模型（用户，帐户，便笺和笔记本）的模型 资料库 和包含我的控制器的网络

这是我的控制人：

@Component
@RestController
public class NotebookRestController{
    @Autowired
    private NotebookRepository notebookRepository;

    @GetMapping(value="/getAllNoteBooks")
    public List<Notebook> getAllNotebooks(@RequestParam(name="uId") Long uid){
       List<Notebook> NotebookList = notebookRepository.findAllByUser_UId(uid);
       return NotebookList;
    }
}

我的存储库代码：

@Repository
public interface NotebookRepository extends JpaRepository<Notebook, Long> {

    @Query("select e from Notebook e where Notebook.user.uId=:x")
    List<Notebook> findAllByUser_UId(@Param("x") long x);
}

和错误：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'notebookRestController': Unsatisfied dependency expressed through field 'notebookRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'notebookRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List com.example.notedemo.repository.NotebookRepository.findAllByUser_UId(long)!
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:845) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.8.RELEASE.jar:2.1.8.RELEASE]
    at com.example.notedemo.NotedemoApplication.main(NotedemoApplication.java:13) [classes/:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'notebookRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List com.example.notedemo.repository.NotebookRepository.findAllByUser_UId(long)!
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1778) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1251) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1171) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    ... 19 common frames omitted
Caused by: java.lang.IllegalArgumentException: Validation failed for query for method public abstract java.util.List com.example.notedemo.repository.NotebookRepository.findAllByUser_UId(long)!
    at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:93) ~[spring-data-jpa-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.jpa.repository.query.SimpleJpaQuery.<init>(SimpleJpaQuery.java:63) ~[spring-data-jpa-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromMethodWithQueryString(JpaQueryFactory.java:76) ~[spring-data-jpa-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryFactory.fromQueryAnnotation(JpaQueryFactory.java:56) ~[spring-data-jpa-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$DeclaredQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:142) ~[spring-data-jpa-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:209) ~[spring-data-jpa-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:79) ~[spring-data-jpa-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lookupQuery(RepositoryFactorySupport.java:566) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$mapMethodsToQuery$1(RepositoryFactorySupport.java:559) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source) ~[na:1.8.0_141]
    at java.util.Iterator.forEachRemaining(Unknown Source) ~[na:1.8.0_141]
    at java.util.Collections$UnmodifiableCollection$1.forEachRemaining(Unknown Source) ~[na:1.8.0_141]
    at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Unknown Source) ~[na:1.8.0_141]
    at java.util.stream.AbstractPipeline.copyInto(Unknown Source) ~[na:1.8.0_141]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) ~[na:1.8.0_141]
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source) ~[na:1.8.0_141]
    at java.util.stream.AbstractPipeline.evaluate(Unknown Source) ~[na:1.8.0_141]
    at java.util.stream.ReferencePipeline.collect(Unknown Source) ~[na:1.8.0_141]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.mapMethodsToQuery(RepositoryFactorySupport.java:561) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.lambda$new$0(RepositoryFactorySupport.java:551) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at java.util.Optional.map(Unknown Source) ~[na:1.8.0_141]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:551) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:324) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.lambda$afterPropertiesSet$5(RepositoryFactoryBeanSupport.java:297) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.util.Lazy.getNullable(Lazy.java:211) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.util.Lazy.get(Lazy.java:94) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:300) ~[spring-data-commons-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:121) ~[spring-data-jpa-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1837) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1774) ~[spring-beans-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    ... 29 common frames omitted
Caused by: java.lang.NullPointerException: null
    at java.lang.String$CaseInsensitiveComparator.compare(Unknown Source) ~[na:1.8.0_141]
    at java.lang.String$CaseInsensitiveComparator.compare(Unknown Source) ~[na:1.8.0_141]
    at java.util.TreeMap.getEntryUsingComparator(Unknown Source) ~[na:1.8.0_141]
    at java.util.TreeMap.getEntry(Unknown Source) ~[na:1.8.0_141]
    at java.util.TreeMap.get(Unknown Source) ~[na:1.8.0_141]
    at org.hibernate.dialect.function.SQLFunctionRegistry.findSQLFunction(SQLFunctionRegistry.java:45) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.findSQLFunction(SessionFactoryHelper.java:385) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.ast.tree.IdentNode.getDataType(IdentNode.java:366) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.ast.HqlSqlWalker.lookupProperty(HqlSqlWalker.java:659) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.addrExpr(HqlSqlBaseWalker.java:5002) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.addrExprLhs(HqlSqlBaseWalker.java:5614) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.addrExpr(HqlSqlBaseWalker.java:4987) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.expr(HqlSqlBaseWalker.java:1286) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.exprOrSubquery(HqlSqlBaseWalker.java:4706) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.comparisonExpr(HqlSqlBaseWalker.java:4174) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:2138) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.whereClause(HqlSqlBaseWalker.java:815) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:609) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:313) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:261) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:271) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:191) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:143) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:119) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:80) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:153) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:611) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:720) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:23) ~[hibernate-core-5.3.11.Final.jar:5.3.11.Final]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_141]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_141]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_141]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_141]
    at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:350) ~[spring-orm-5.1.9.RELEASE.jar:5.1.9.RELEASE]
    at com.sun.proxy.$Proxy86.createQuery(Unknown Source) ~[na:na]
    at org.springframework.data.jpa.repository.query.SimpleJpaQuery.validateQuery(SimpleJpaQuery.java:87) ~[spring-data-jpa-2.1.10.RELEASE.jar:2.1.10.RELEASE]
    ... 58 common frames omitted

2 个答案:

答案 0 :(得分：1)

如果将错误stacktrace的第一行滚动到右侧，那么您会看到它说：

  

java.lang.IllegalArgumentException：方法公共抽象java.util.List com.example.notedemo.repository.NotebookRepository.findAllByUser_UId（long）```

的查询验证失败

因此您在存储库中的自定义JPQL查询无效。

如果您的Notebook类具有User类型的成员user和访问者（getter / setter），并且此User类具有类型{{1 }}称为java.lang.Long（也带有访问器）...然后尝试将查询更改为：

uId

在那之后，如果仍然无法使用，请尝试在查询中使用select e from Notebook e where e.user.uId=:x类的完整合格类名。

仅供参考：也许您应该尝试使用Spring Data JPA ...使事情变得很简单： https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#repositories.query-methods.query-creation

答案 1 :(得分：0)

如果您遵循堆栈跟踪并仔细阅读，就可以弄清楚。

第一个例外：

  

org.springframework.beans.factory.UnsatisfiedDependencyException：创建名称为'notebookRestController'的bean时出错：通过字段'notebookRepository'表示的不满足依赖性； 嵌套异常是org.springframework.beans.factory.BeanCreationException ：创建名称为'notebookRepository'的bean时出错：初始化方法的调用失败；嵌套异常是java.lang.IllegalArgumentException：方法公共抽象java.util.List com.example.notedemo.repository.NotebookRepository.findAllByUser_UId（long）的查询验证失败！

确定，因此创建notebookRestController失败，因为创建notebookRepsitory时出现问题。让我们继续：

  

原因：java.lang.IllegalArgumentException：对方法public abstract java.util.List的查询的验证失败。com.example.notedemo.repository.NotebookRepository.findAllByUser_UId（long）！

嗯，所以问题出在查询上！它无法解析查询，因此无法创建NotebookRepository，并且由于它需要该存储库来创建NotebookRestController，因此也无法创建该查询。很有道理。

因此，问题出在查询

select e from Notebook e where Notebook.user.uId=:x

我认为问题是您使用的是Notebook而不是e。我会尝试

select e from Notebook e where e.user.uId=:x
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