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apache / dubbo

The java implementation of Apache Dubbo. An RPC and microservice framework.
https://dubbo.apache.org/
Apache License 2.0
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@Reference注解不支持泛型注入？ #664

Closed li362692680 closed 6 years ago

li362692680 commented 7 years ago

//父类 public class BaseController<S extends DubboServiceI,T>{ @Reference private S service;

@RequestMapping(value="/delete",produces="application/json;charset=UTF-8",method=RequestMethod.POST)
public Result delete(@RequestBody T entity){
    return ResultUtil.converter(service.delete(entity));
}

} //子类 @RestController @RequestMapping("/questionary") public class QuestionaryController extends BaseController<QuestionaryServiceI,QuestionaryEntity>{

} 这种写法消费端不能注入到zk中，也不能调用，启动也不报错，@Reference是否支持这种写法？？

chickenlj commented 7 years ago

确认一下@Reference是否已经加入Spring的自动扫描路径中？

https://dubbo.gitbooks.io/dubbo-user-book/content/configuration/annotation.html

li362692680 commented 7 years ago

加入了，把父类去掉，写成以下方式是可以正常使用的，写成泛型注入的方式就不行 @RestController @requestmapping("/questionary") public class QuestionaryController{ @reference(QuestionaryServiceI.class) private QuestionaryServiceI service; @RequestMapping(value="/delete",produces="application/json;charset=UTF- 8",method=RequestMethod.POST) public Result delete(@RequestBody QuestionaryEntity entity){ return ResultUtil.converter(service.delete(entity)); } }

chickenlj commented 7 years ago

确认了一下，不是泛型的问题，是属性声明在父类BaseController导致无法注入。 计划在下一个版本做支持

RylanStar commented 7 years ago

退订

在2017年09月19日 11:48，li362692680 写道：

加入了，把父类去掉，写成以下方式是可以正常使用的，写成泛型注入的方式就不行 @RestController @requestmapping("/questionary") public class QuestionaryController{ @reference(QuestionaryServiceI.class) private QuestionaryServiceI service; @requestmapping(value="/delete",produces="application/json;charset=UTF- 8",method=RequestMethod.POST) public Result delete(@requestbody QuestionaryEntity entity){ return ResultUtil.converter(service.delete(entity)); } }

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dcy421 commented 4 years ago

请问下 这个问题解决了吗？我也发送此问题

api: public interface DemoService {

String sayHello(String name);

}

provider: @Service public class DemoServiceImpl implements DemoService {

@Value("${dubbo.application.name}")
private String serviceName;

@NacosValue(value = "${spring.aa}", autoRefreshed = true)
private String test;

public String sayHello(String name) {
    return String.format("[%s] : Hello, %s", serviceName+test, name);
}

}

consumer:

public class BaseController {

@Reference
private S service;

public S getService() {
    return service;
}

}

@EnableAutoConfiguration @RestController public class DubboConsumerBootstrap extends BaseController{

public static void main(String[] args) {
    SpringApplication.run(DubboConsumerBootstrap.class);
}

@RequestMapping(value = "/sayHello", method = GET)
public String sayHello(@RequestParam String name) {
    return super.getService().sayHello(name);
}

}

maven 版本：

1.8 2.7.6 2.3.2.RELEASE Hoxton.RELEASE 2.2.1.RELEASE 2.2.2.RELEASE 
<dependencyManagement>
    <dependencies>
        <!-- Spring Boot -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>${spring-boot.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

        <!-- Spring Cloud -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring-cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

        <!-- Spring Cloud Alibaba -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-dependencies</artifactId>
            <version>${spring-cloud-alibaba.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

        <!-- Apache Dubbo  -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-dependencies-bom</artifactId>
            <version>${dubbo.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>

        <!--ApiBoot版本依赖 主要使用swagger2 接口文档-->
        <dependency>
            <groupId>org.minbox.framework</groupId>
            <artifactId>api-boot-dependencies</artifactId>
            <version>${api-boot.version}</version>
            <scope>import</scope>
            <type>pom</type>
        </dependency>

        <!-- Dubbo Spring Boot Starter -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>${dubbo.version}</version>
        </dependency>
    </dependencies>
</dependencyManagement>

consumer报错信息：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dubboConsumerBootstrap': Injection of @Reference dependencies is failed; nested exception is java.lang.IllegalArgumentException: @Service interfaceClass() or interfaceName() or interface class must be present! at com.alibaba.spring.beans.factory.annotation.AbstractAnnotationBeanPostProcessor.postProcessPropertyValues(AbstractAnnotationBeanPostProcessor.java:146) ~[spring-context-support-1.0.6.jar:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1425) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE] at com.dcy.consumer.DubboConsumerBootstrap.main(DubboConsumerBootstrap.java:26) [classes/:na] Caused by: java.lang.IllegalArgumentException: @Service interfaceClass() or interfaceName() or interface class must be present! at org.springframework.util.Assert.notNull(Assert.java:201) ~[spring-core-5.2.8.RELEASE.jar:5.2.8.RELEASE] at org.apache.dubbo.config.spring.util.DubboAnnotationUtils.resolveServiceInterfaceClass(DubboAnnotationUtils.java:122) ~[dubbo-2.7.6.jar:2.7.6] at org.apache.dubbo.config.spring.util.DubboAnnotationUtils.resolveInterfaceName(DubboAnnotationUtils.java:78) ~[dubbo-2.7.6.jar:2.7.6] at org.apache.dubbo.config.spring.beans.factory.annotation.ServiceBeanNameBuilder.(ServiceBeanNameBuilder.java:65) ~[dubbo-2.7.6.jar:2.7.6] at org.apache.dubbo.config.spring.beans.factory.annotation.ServiceBeanNameBuilder.create(ServiceBeanNameBuilder.java:78) ~[dubbo-2.7.6.jar:2.7.6] at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.buildReferencedBeanName(ReferenceAnnotationBeanPostProcessor.java:358) ~[dubbo-2.7.6.jar:2.7.6] at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.buildInjectedObjectCacheKey(ReferenceAnnotationBeanPostProcessor.java:347) ~[dubbo-2.7.6.jar:2.7.6] at com.alibaba.spring.beans.factory.annotation.AbstractAnnotationBeanPostProcessor.getInjectedObject(AbstractAnnotationBeanPostProcessor.java:354) ~[spring-context-support-1.0.6.jar:na] at com.alibaba.spring.beans.factory.annotation.AbstractAnnotationBeanPostProcessor$AnnotatedFieldElement.inject(AbstractAnnotationBeanPostProcessor.java:539) ~[spring-context-support-1.0.6.jar:na] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE] at com.alibaba.spring.beans.factory.annotation.AbstractAnnotationBeanPostProcessor.postProcessPropertyValues(AbstractAnnotationBeanPostProcessor.java:142) ~[spring-context-support-1.0.6.jar:na] ... 18 common frames omitted

Disconnected from the target VM, address: '127.0.0.1:58069', transport: 'socket'

Process finished with exit code 1