Spring 嵌套异常是java.lang.IllegalArgumentException:不是托管类型:类
我正在尝试部署一个Spring 嵌套异常是java.lang.IllegalArgumentException:不是托管类型:类,spring,spring-boot,spring-data,spring-data-jpa,spring-restcontroller,Spring,Spring Boot,Spring Data,Spring Data Jpa,Spring Restcontroller,我正在尝试部署一个Spring引导应用程序,其中服务访问JpaRepository,该应用程序在运行时使用JPA和Hibernate连接到src/main/resources/application.properties中的连接属性 当我在Tomcat上部署build.WAR时,应用程序无法启动,错误记录如下 有人能帮个忙吗?这个错误是什么意思 注意我注意到了myservicecimpl和MyRequestBody类中的问题点,但我没有得到错误的确切原因,因为我是Spring框架的新手 我的Sp
Spring引导应用程序,其中服务访问JpaRepository
,该应用程序在运行时使用JPA
和Hibernate
连接到src/main/resources/application.properties中的连接属性
当我在Tomcat上部署build.WAR时,应用程序无法启动,错误记录如下
有人能帮个忙吗?这个错误是什么意思
注意我注意到了myservicecimpl
和MyRequestBody
类中的问题点,但我没有得到错误的确切原因,因为我是Spring框架的新手
我的Spring Boot Starter项目中相关类的定义如下:
Spring启动应用程序
我的服务接口(我没有提供任何@Service注释)
SpringServiceImpl类,带有在PostgreSQL数据库上操作的自动连接存储库实例
添加@EntityScan(“实体\包\名称”)后
Spring不知道您的实体。您需要使用@EntityScan(“your.entities.package”)
来表示MySpringBootApplication
类。在我的例子中,实体类中缺少@Entity
和@Id
注释。您应该将实体类与存储库类放在同一个模块中,
如果没有,您应该将@EntityScan添加到应用程序类中我们需要使用setPackagesToScan()方法使用LocalContainerEntityManagerFactoryBean配置Entity类包。
考虑下面的例子:
@Bean
公共LocalContainerEntityManagerFactoryBean entityManagerFactory(数据源数据源,JpaVendorAdapter JpaVendorAdapter){
LocalContainerEntityManagerFactoryBean=新的LocalContainerEntityManagerFactoryBean();
setDataSource(dataSource);
setJpaVendorAdapter(jpaVendorAdapter);
setPackagesToScan(“此处为您的实体打包名称”);
返回豆;
}
我也遇到过类似的问题,但我不确定您的代码是否正确,但我正在为访问此错误的其他人编写此答案。我犯了一个错误,给出了错误的包名,而不是工件ID和组ID的组合(小的打字错误),当我纠正它时,问题就解决了。您使用了哪种@Entity注释?javax.persistence.Entity在向MySpringBootApplication类输入@EntityScan后出现新错误。用新的错误日志编辑了我的问题我是否需要将@EnableJpaRepositories(“用于存储库的包”)
添加到MySpringBootApplication
类中?添加@EnableJpaRepositories
后,它成功了!EntityScan是我学到的一个新注释,它对我很有用。我只是想知道为什么春天没有提到它。我理解这样一种印象,即即使实体类也会被scanBasePackage扫描。无论如何,谢谢!我有一个类似的错误,但是,我在应用程序上添加了EnableJpaRepositories和EntityScan注释,并指定了确切的包。实体有一个实体和Id注释,尽管如此,它仍然不关心。
@SpringBootApplication
@ComponentScan(<root package name under which all subpackages containing relevant classes >)
public class MySpringBootApplication extends SpringBootServletInitializer {
@RestController
public class MyController {
@Autowired
MyService myService;
public interface MyService {
//all service method definitions
}
@Service("myService")
public class MyServiceImpl implements MyService {
@Autowired
private MyRepository myRepository; <-- **ERROR -- Bean not found**
//other default services e.g. find, add, delete, update, etc.
}
@Repository
public interface MyRepository extends JpaRepository<MyRequestBody, Long> {
@Query("select h from MyRequestBody h where h.column1 = ?1")
List<MyRequestBody> findByColumn1(String col1);
}
@Entity
@Table(name = "myTable", schema = "my_db")
public class MyRequestBody { <-- **ERROR -- Not a managed class type**
@Id
@Column(name = "id")
@GeneratedValue(strategy = GenerationType.SEQUENCE)
private Long id;
@Column(name = "column1")
private String column1;
//getter and setter AND toString methods
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-12-28 15:50:23.282 ERROR 5320 --- [ost-startStop-1] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'MyController': Unsatisfied dependency expressed through field 'myService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myService': Unsatisfied dependency expressed through field 'myRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.rest.MyRequestBody
***************************
APPLICATION FAILED TO START
***************************
Description:
Field myRepository in com.rest.MyServiceImpl required a bean of type 'com.rest.MyRepository' that could not be found.
Action:
Consider defining a bean of type 'com.rest.MyRepository' in your configuration.
29-Dec-2017 08:22:25.023 SEVERE [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/spring-boot-service]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:752)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:986)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myController': Unsatisfied dependency expressed through field 'myService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myService': Unsatisfied dependency expressed through field 'myRepository'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.rest.MyRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
at org.springframework.boot.web.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:154)
at org.springframework.boot.web.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:134)
at org.springframework.boot.web.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:87)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:169)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5196)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 10 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'myService': Unsatisfied dependency expressed through field 'myRepository'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.rest.MyRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
... 32 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.rest.MyRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1493)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1104)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
... 45 more
29-Dec-2017 08:22:25.026 SEVERE [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive [/home/sunilg/apache-tomcat-8.5.24/webapps/spring-boot-service.war]
java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/spring-boot-service]]
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:756)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:728)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:986)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)