【记录使用spring-cloud-starter-alibaba-nacos-config 注册到 nacos 时配置问题。】这里记录如何实现把消费者注册到Nacos并使用Nacos提供的配置管理 。
报错提示：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.echoController': Injection of @Reference dependencies is failed; nested exception is java.lang.IllegalStateException: No registry config found or it's not a valid config! The registry config is: at org.apache.dubbo.config.spring.beans.factory.annotation.AnnotationInjectedBeanPostProcessor.postProcessPropertyValues(AnnotationInjectedBeanPostProcessor.java:151) ~[dubbo-2.7.3.jar:2.7.3] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1416) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$1(AbstractBeanFactory.java:356) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.cloud.context.scope.GenericScope$BeanLifecycleWrapper.getBean(GenericScope.java:389) ~[spring-cloud-context-2.1.2.RELEASE.jar:2.1.2.RELEASE] at org.springframework.cloud.context.scope.GenericScope.get(GenericScope.java:186) ~[spring-cloud-context-2.1.2.RELEASE.jar:2.1.2.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:353) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1105) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.cloud.context.scope.refresh.RefreshScope.eagerlyInitialize(RefreshScope.java:134) ~[spring-cloud-context-2.1.2.RELEASE.jar:2.1.2.RELEASE] at org.springframework.cloud.context.scope.refresh.RefreshScope.start(RefreshScope.java:125) ~[spring-cloud-context-2.1.2.RELEASE.jar:2.1.2.RELEASE] at org.springframework.cloud.context.scope.refresh.RefreshScope.onApplicationEvent(RefreshScope.java:119) ~[spring-cloud-context-2.1.2.RELEASE.jar:2.1.2.RELEASE] at org.springframework.cloud.context.scope.refresh.RefreshScope.onApplicationEvent(RefreshScope.java:73) ~[spring-cloud-context-2.1.2.RELEASE.jar:2.1.2.RELEASE] at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:402) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:359) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:896) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:162) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE] at com.xjw.travel.business.BusinessRegApplication.main(BusinessRegApplication.java:13) [classes/:na]Caused by: java.lang.IllegalStateException: No registry config found or it's not a valid config! The registry config is: at org.apache.dubbo.config.AbstractInterfaceConfig.checkRegistry(AbstractInterfaceConfig.java:202) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:378) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:329) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:250) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor$ReferenceBeanInvocationHandler.init(ReferenceAnnotationBeanPostProcessor.java:269) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor$ReferenceBeanInvocationHandler.access$100(ReferenceAnnotationBeanPostProcessor.java:242) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.buildInvocationHandler(ReferenceAnnotationBeanPostProcessor.java:236) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.buildProxy(ReferenceAnnotationBeanPostProcessor.java:219) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.doGetInjectedBean(ReferenceAnnotationBeanPostProcessor.java:134) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.spring.beans.factory.annotation.AnnotationInjectedBeanPostProcessor.getInjectedObject(AnnotationInjectedBeanPostProcessor.java:360) ~[dubbo-2.7.3.jar:2.7.3] at org.apache.dubbo.config.spring.beans.factory.annotation.AnnotationInjectedBeanPostProcessor$AnnotatedFieldElement.inject(AnnotationInjectedBeanPostProcessor.java:540) ~[dubbo-2.7.3.jar:2.7.3] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) ~[spring-beans-5.1.10.RELEASE.jar:5.1.10.RELEASE] at org.apache.dubbo.config.spring.beans.factory.annotation.AnnotationInjectedBeanPostProcessor.postProcessPropertyValues(AnnotationInjectedBeanPostProcessor.java:147) ~[dubbo-2.7.3.jar:2.7.3] ... 28 common frames omitted 目录结构
bootstrap.properties文件
spring.profiles.active=prospring.application.name=business-reg-configspring.cloud.nacos.config.server-addr=192.168.138.9:8848spring.cloud.nacos.config.file-extension=yaml nacos配置列表
报错的为pro配置类 。之所以出错是因为只有在创建配置列表时没有在Data ID文件加yaml
正确做法：
**
附录 以下代码为实现简单的springcloud alibaba dubbo 服务端注册到nacos并实现熔断，负载均衡 。
**
pom.xml
com.alibaba.cloudspring-cloud-starter-alibaba-nacos-discoveryorg.springframework.cloudspring-cloud-starter-alibaba-nacos-config business-reg-config-pro.yaml
base:config:nacos:hostname: 47.112.252.218port: 8848sentile:hostname: localhostport: 8080spring:application:name: business-regmain:allow-bean-definition-overriding: truejackson:time-zone: GMT+8date-format: yyyy-MM-dd HH:mm:sscloud:nacos:discovery:server-addr: ${base.config.nacos.hostname}:${base.config.nacos.port}sentinel:transport:dashboard: ${base.config.sentile.hostname}:${base.config.sentile.port}dubbo:scan:base-packages: com.xjw.travel.businessprotocol:name: dubboport: -1serialization: kryoregistry:address: nacos://${base.config.nacos.hostname}port: ${base.config.nacos.port}server:port: 9002management:endpoints:web:exposure:include: "*"user:name: "续集屋" EchoController：
package com.xjw.travel.business.controller;import com.alibaba.csp.sentinel.annotation.SentinelResource;import com.xjw.travel.business.controller.fallback.EchoControllerFallback;import com.xjw.travel.provider.api.EchoService;import org.apache.dubbo.config.annotation.Reference;import org.springframework.beans.factory.annotation.Value;import org.springframework.cloud.context.config.annotation.RefreshScope;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;/** * @author xjw */@RestController@RequestMapping(value = "https://tazarkount.com/read/echo")@RefreshScopepublic class EchoController {@Reference(version = "1.0.0")private EchoService echoService;@Value("${user.name}")private String username;@Value("${server.port}")private String port;@GetMapping(value = "https://tazarkount.com/read/{string}")@SentinelResource(value = "https://tazarkount.com/read/echo", fallback = "echo",fallbackClass = EchoControllerFallback.class)public String echo(@PathVariable String string) {return echoService.echo(string) + " " + username + "服务端口："+ port;}} EchoControllerFallback
package com.xjw.travel.business.controller.fallback;public final class EchoControllerFallback{public static String echo(String string) {return "echo fail.";}}
