Spring@Configuration annotation@Autowired服务为空



我使用的是Spring配置和Jersey配置。

这是我的春季配置:

@Component
@Configuration
@EnableScheduling
@EnableAspectJAutoProxy
@EnableTransactionManagement
@ComponentScan(basePackages = { "my.packages" })
public class SpringConfig {
private static final String MESSAGE_SOURCE_BASE_NAME = "i18n/messages";
@Profile(Profiles.APPLICATION)
@Configuration
@PropertySource("classpath:application.properties")
static class ApplicationProperties {
}
@Bean
public BCryptPasswordEncoder bCryptPasswordEncoder() {
return new BCryptPasswordEncoder(11);
}
@Bean
public TaskScheduler taskScheduler() {
return new ConcurrentTaskScheduler();
}
@Bean
MessageSource messageSource() {
ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
messageSource.setBasename(MESSAGE_SOURCE_BASE_NAME);
messageSource.setUseCodeAsDefaultMessage(true);
return messageSource;
}
}

这是我的服务类和接口:

public interface DAOService {
User register(User user)
}

@Service
public class DAOServiceImpl implements DAOService {
@Override
User register(User user){
return null;
}
}

这是我的球衣资源:

在ResourceSecurityService类中,我想对DAOService使用@Autowire类,但我得到了null指针异常,daoService总是null。

@Component
@Path("/security")
@Produces({ MediaType.APPLICATION_JSON })
public class ResourceDAOService  {
@Autowired 
private DAOService daoService ; //<--- here daoService is null;
@POST
@Path("/register")
@Consumes({ MediaType.APPLICATION_JSON })
@Transactional
public Response register(User user, @Context HttpServletRequest request,
@Context HttpServletResponse response) throws AppException {
return Response.status(Response.Status.CREATED).entity(securityService.register(user)).build();
}

我使用的是带有下一个依赖项的spring版本4.3.8.RELEASE:

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>

如果您提供一个到您的项目的链接可能会更好。根据我看到的信息:

  • 确保您具有jersey-spring4依赖关系
  • 确保您的Jersey版本与集成依赖项兼容
  • 查看您的项目配置

我建议您将Spring Boot与自动配置一起使用。

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