Spring Boot（2.0.4.RELEASE）-IllegalArgumentException：不是托管类型
我正在使用Spring Boot应用程序尝试与手动数据源连接，当运行项目时出现异常：
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'accountController': Unsatisfied dependency expressed through field 'accountService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'accountServiceImpl': Unsatisfied dependency expressed through field 'accountDao'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'accountDao': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.springstudy.demo.model.Account
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:372) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1341) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$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.springstudy.demo.DemoApplication.main(DemoApplication.java:23) [classes/:na]
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'accountServiceImpl': Unsatisfied dependency expressed through field 'accountDao'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'accountDao': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.springstudy.demo.model.Account
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586) ~[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.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:372) ~[spring-beans-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$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:583) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
... 19 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'accountDao': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.springstudy.demo.model.Account
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$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:583) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
... 32 common frames omitted
Caused by: java.lang.IllegalArgumentException: Not a managed type: class com.springstudy.demo.model.Account
at org.hibernate.metamodel.internal.MetamodelImpl.managedType(MetamodelImpl.java:473) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:73) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getEntityInformation(JpaEntityInformationSupport.java:66) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:180) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:118) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:101) ~[spring-data-jpa-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:298) ~[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]
以下是我的应用程序中使用的类
DemoApplication
@SpringBootApplication
@EnableJpaRepositories("com.springstudy.demo")
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
数据库配置
@Configuration
@EnableTransactionManagement
public class MYSQLConfig {
// ------------------------
// PUBLIC METHODS
// ------------------------
/**
* DataSource definition for database connection. Settings are read from
* the application.properties file (using the env object).
*/
@Bean
public DataSource dataSource() {
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(env.getProperty("db.driver"));
dataSource.setUrl(env.getProperty("db.url"));
dataSource.setUsername(env.getProperty("db.username"));
dataSource.setPassword(env.getProperty("db.password"));
return dataSource;
}
/**
* Declare the JPA entity manager factory.
*/
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean entityManagerFactory =
new LocalContainerEntityManagerFactoryBean();
entityManagerFactory.setDataSource(dataSource);
// Classpath scanning of @Component, @Service, etc annotated class
entityManagerFactory.setPackagesToScan(
env.getProperty("entitymanager.packagesToScan"));
// Vendor adapter
HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
entityManagerFactory.setJpaVendorAdapter(vendorAdapter);
// Hibernate properties
Properties additionalProperties = new Properties();
additionalProperties.put(
"hibernate.dialect",
env.getProperty("hibernate.dialect"));
additionalProperties.put(
"hibernate.show_sql",
env.getProperty("hibernate.show_sql"));
additionalProperties.put(
"hibernate.hbm2ddl.auto",
env.getProperty("hibernate.hbm2ddl.auto"));
entityManagerFactory.setJpaProperties(additionalProperties);
return entityManagerFactory;
}
/**
* Declare the transaction manager.
*/
@Bean
public JpaTransactionManager transactionManager() {
JpaTransactionManager transactionManager =
new JpaTransactionManager();
transactionManager.setEntityManagerFactory(
entityManagerFactory.getObject());
return transactionManager;
}
/**
* PersistenceExceptionTranslationPostProcessor is a bean post processor
* which adds an advisor to any bean annotated with Repository so that any
* platform-specific exceptions are caught and then rethrown as one
* Spring's unchecked data access exceptions (i.e. a subclass of
* DataAccessException).
*/
@Bean
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
// ------------------------
// PRIVATE FIELDS
// ------------------------
@Autowired
private Environment env;
@Autowired
private DataSource dataSource;
@Autowired
private LocalContainerEntityManagerFactoryBean entityManagerFactory;
}
存储库
@Repository
public interface AccountDao extends JpaRepository<Account, Long>{
}
模型（实体）
@Entity
@Table(name = "tbl_account")
public class Account {
@Id
@GeneratedValue
@Column(name ="id_user")
private Long id;
@Column(name = "usrname")
private String userName;
@Column(name ="password")
private String password;
@Column(name = "status")
private String status;
@Column(name = "modifiedDate")
private Date modifiedDate;
服务
@Service
public class AccountServiceImpl implements AccountService {
@Autowired
AccountDao accountDao;
@Transactional
public Account save(Account account) {
return account;
}
}
这是我的项目结构：
我花了很多时间试图找出我做错了什么...不知道。
我试图从堆栈中添加@ComponentScan("com.springstudy.demo")，@EntityScan("com.springstudy.demo")和其他解决方案，但是
得到同样的错误。
3 个答案:
答案 0 :(得分：3)
实际上，由于要在MYSQLConfig bean中显式定义JPA配置，因此使事情变得更加复杂。
这意味着您将不再使用the whole auto configuration provided by Spring Boot for the JPA concern。
有关信息，实际上设置的值可以由application.properties/yml进行赋值，该值将在Spring环境中添加必需的属性。
例如：
spring.datasource.url=jdbc:mysql://mydb
spring.datasource.username=user
spring.datasource.password=pass
...
关于，您的问题可能在这里：
entityManagerFactory.setPackagesToScan(
env.getProperty("entitymanager.packagesToScan"));
Spring Boot 2中似乎不存在此属性。
您可以通过调用getRequiredProperty()而不是getProperty()来增强配置的健壮性，例如：
entityManagerFactory.setPackagesToScan(
env.getRequiredProperty("entitymanager.packagesToScan"));
如果您确实需要通过编程方式设置entityManagerFactory.setPackagesToScan()，则可以将该值设置为：
entityManagerFactory.setPackagesToScan(DemoApplication.getPackage().toString());
因为DemoApplication位于应用程序的任何候选bean的根包中。
或者，如果所有实体都在同一基本包中，则您也可以依赖任何实体类的包，例如：
entityManagerFactory.setPackagesToScan(Account.getPackage().toString());
比对将来可能会更改的com.springstudy.demo.model包进行硬编码要好：
entityManagerFactory.setPackagesToScan("com.springstudy.demo.model");
答案 1 :(得分：2)
在配置类中添加以下注释：
@EntityScan(basePackages = {"<package-name>"})
答案 2 :(得分：0)
我在Spring Boot 2.1.5中有相同的问题。问题是我使用了Pervasive数据库的JDBC驱动程序。
因此，我必须在自己的build.gradle中包含Spring Data JDBC支持
implementation 'org.springframework.boot:spring-boot-starter-data-jdbc'
那解决了我的问题。
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