相关疑难解决方法(0)

我收到以下错误:

***************************
APPLICATION FAILED TO START
***************************

Description:

Parameter 0 of method setApplicant in webService.controller.RequestController required a bean of type 'com.service.applicant.Applicant' that could not be found.


Action:

Consider defining a bean of type 'com.service.applicant.Applicant' in your configuration.

我之前从未见过这个错误,但@Autowire无法正常工作,这很奇怪.这是项目结构:

申请人界面

public interface Applicant {

    TApplicant findBySSN(String ssn) throws ServletException;

    void deleteByssn(String ssn) throws ServletException;

    void createApplicant(TApplicant tApplicant) throws ServletException;

    void updateApplicant(TApplicant tApplicant) throws ServletException;

    List<TApplicant> getAllApplicants() throws ServletException;
}

ApplicantImpl

@Service
@Transactional
public class ApplicantImpl implements Applicant {

private static Log …

我很确定我过去在JPA 2.0中使用了@Entity注释的bean的某种自动检测,但我无法弄清楚如何.你如何做而不是将每个bean列在classpersistence.xml 中的XML元素中？

执行单元测试时将抛出以下错误。请告知我是否遗漏了什么。我正在使用 Spring Boot 2.1.1.RELEASE。谢谢！

java.lang.IllegalStateException：无法检索@EnableAutoConfiguration 基础包

应用程序-test.yml

spring:
  profiles: test
  datasource:
    driver-class-name: org.h2.Driver
    url: jdbc:h2:mem:testdb;DB_CLOSE_DELAY=-1
    username : xxx
    password : xxx
  jpa:
    hibernate:
      ddl-auto: update
  cache:
    type: simple

应用程序库.java

@Repository
public interface AppRepository extends CrudRepository<App, Integer> {

    App findFirstByAppId(String appId);

}   

AppRepositoryTest.java

@RunWith(SpringRunner.class)
@ContextConfiguration(classes = {AppRepository.class})
@EnableConfigurationProperties
@DataJpaTest
@ActiveProfiles("test")
public class AppRepositoryTest {

    @Autowired
    AppRepository appRepository;

    @Before
    public void setUp() throws Exception {
        App app = new App();
        app.setAppId("testId");
        appRepository.save(app);
    }

    @Test
    public void testFindFirstByAppId() {
        assertNotNull(appRepository.findFirstByAppId("testId"));        
    }
}

封装结构 …

EntityScan类已从SpringBoot 1.5.0-SNAPSHOT中删除,当我更改为1.3.0-SNAPSHOT版本时,EntityScan存在.

我必须添加另一个依赖使用EntityScan与SpringBoot 1.5.0-SNAPSHOT？

https://github.com/spring-projects/spring-boot/issues/8231

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] …