Question

我正在将Play Framework 2.2.x中的应用程序重构为Play Framework 2.6.x，并且在应用程序的更新版本中，@ Autowired spring服务为null（我没有使用“new”，因此Spring会混淆）。

AuthentecatedAction类：

@Scope("prototype")
@Component
public class AuthenticatedAction extends Action<Authenticated>
{
    private final Logger log = LoggerFactory.getLogger(getClass());

    @Autowired
    ABCUserService ABCUserService;

    @Autowired
    AccessTokenService accessTokenService;

    @Autowired
    AccessTokenValidator accessTokenValidator;

    @Override
    public CompletionStage<Result> call(Http.Context ctx)
    {
            AccessToken accessToken;
            try {
                accessToken = accessTokenService.getAccessTokenFromHeader(ctx._requestHeader().headers());
            } catch (Throwable throwable) {
                return ResultUtils.handleError(new ValidationException(FORBIDDEN, String.format("Access token service is null. %s", throwable.getMessage())));
            }
// Some more code here
    }
// Some more code here
}

此处accessTokenService是@Autowired，但它始终为空。

AccessTokenService类：

@Service
public class AccessTokenService extends JedisBaseService
{
    private final Logger log = LoggerFactory.getLogger(getClass());

    @Autowired
    private ConfigurationService configurationService;

    @Autowired
    private EncryptionService encryptionService;

    @Inject
    public AccessTokenService(JedisPool jedisPool) {
        super(jedisPool);
    }

// some methods 

}

JedisBaseService类：

    public class JedisBaseService extends Controller
    {
        private final Logger log = LoggerFactory.getLogger(getClass());

        private JedisPool jedisPool;

        @Inject
        public JedisBaseService(JedisPool jedisPool) {
            this.jedisPool = jedisPool;
        }

// some methods

        // TODO: Check that solution with iserting JedisPool works
        // See https://github.com/playframework/play-plugins/tree/master/redis for reference
        protected Jedis getJedis()
        {
            return jedisPool.getResource();
        }

    }

请帮助我理解为什么AuthentecatedAction类accessTokenService中的@Autowired始终为空。

编辑：

我应该补充一点，我的build.sbt文件包含以下行：

  // https://mvnrepository.com/artifact/org.springframework/spring-context
  "org.springframework" % "spring-context" % "4.3.10.RELEASE"

我的routes文件包含以下行：

POST          /accesstokens        @api.controller.accesstoken.AccessTokenController.createAccessToken()
DELETE        /accesstokens        @api.controller.accesstoken.AccessTokenController.deleteAccessToken()

因此，我使用动态控制器调度来管理控制器实例（通过在路由文件中使用@符号作为控制器类名称前缀）。

有一个用于访问令牌的控制器：

    @Controller
    public class AccessTokenController extends ABCController
    {
        @Autowired
        private AccessTokenService accessTokenService;

        @Autowired
        private ABCUserService ABCUserService;

        @Autowired
        private ActivityCreationService activityCreationService;

        @Autowired
        private LiveUpdateService liveUpdateService;

        @BodyParser.Of(BodyParser.TolerantJson.class)
        @ResponseContentType(type = "accessToken")
        public Result createAccessToken() throws ABCControllerException
        {
// Implementation
        }

        public Result deleteAccessToken() throws ABCControllerException
        {
// Implementation
        }
    }

我的应用程序的全局对象，它委托控制器实例管理：

public class ABCGlobal
{
    private final Logger log = LoggerFactory.getLogger(getClass());

    protected static ApplicationContext ctx;

    private final ActorSystem system;

    @Inject
    public ABCGlobal(ActorSystem system) {
        this.system = system;
    }

    public static ApplicationContext getApplicationContext()
    {
        return ctx;
    }

    public void onStart(Application app)
    {
        String springConfigurationName = app.configuration().getString("spring.context");
        ctx = new ClassPathXmlApplicationContext(springConfigurationName);
        log.info("Loading spring configuration: {}", springConfigurationName);

        // Some other code
    }

    // see: http://typesafe.com/blog/announcing-play-framework-21-the-high-velocit
    public <A> A getControllerInstance(Class<A> clazz)
    {
        return ctx.getBean(clazz);
    }

    // Some other code
}

以下是用于配置Spring的关联conf / components.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
         http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context-3.0.xsd">
    <context:component-scan base-package="api, service"/>
    <context:property-placeholder location="classpath:application-base.conf" />
    <context:property-placeholder location="classpath:application.conf" />
    <bean class="org.springframework.beans.factory.config.ServiceLocatorFactoryBean" id="resourceConverterFactory">
        <property name="serviceLocatorInterface" value="service.resource.conversion.ResourceConverterFactory">
        </property>
    </bean>
    <bean class="org.springframework.beans.factory.config.ServiceLocatorFactoryBean" id="scraperFactory">
        <property name="serviceLocatorInterface" value="service.scraping.ScraperFactory">
        </property>
    </bean>
    <bean id="storageService" class="service.storage.impl.MongoGridFSStorageService"/>
    <bean id="configurationService" class="service.configuration.impl.PlayConfigurationService">
    <constructor-arg value="com.typesafe.config.Config" name="config">
    </constructor-arg>
    </bean>
    <bean id="mailService" class="service.mail.impl.MailGunApiMailService"/>
</beans>

在我的application-base.conf文件中，我有以下内容：

# Spring configuration
# ~~~~~
# Define what spring context should be used.
spring.context="components.xml"

@Autowired Spring服务在Play Framework 2.6应用程序中为空

0 个答案: