注册中心服务eureka 切换到 nocas遇到的问题

springBoot版本2.3.7.RELEASE

springCloudAlibab版本2.2.2.RELEASE

springClould 版本 Hoxton.RELEASE

            
     
        org.springframework.boot
        spring-boot-starter-parent
        2.3.7.RELEASE
         
              
 
 
         
            
                com.alibaba.nacos
                nacos-client
                ${nacos.version}
            
 
            
            
                com.alibaba.cloud
                spring-cloud-alibaba-dependencies
                ${spring-cloud-alibaba.version}
                <type>pom
                import
            
 
            
                org.springframework.cloud
                spring-cloud-dependencies
                ${spring-cloud.version}
                <type>pom
                import
            
 
        
            org.springframework.cloud
            spring-cloud-loadbalancer
        

         <nacos.version>2.0.3nacos.version>
        <spring-cloud-alibaba.version>2.2.2.RELEASEspring-cloud-alibaba.version>
        <spring-cloud.version>Hoxton.RELEASEspring-cloud.version>

子服务

        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-discovery
            
                
                    org.springframework.cloud
                    spring-cloud-starter-netflix-ribbon
                
            
        
 
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-config
        

删除eureka,config

        <dependency>
            <groupId>org.springframework.cloudgroupId>
            <artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>
        dependency>
 
        <dependency>
            <groupId>org.springframework.cloudgroupId>
            <artifactId>spring-cloud-starter-configartifactId>
        dependency>

包冲突hystrix,ribbon

       <dependency>
            <groupId>org.springframework.cloudgroupId>
            <artifactId>spring-cloud-starter-netflix-hystrixartifactId>
        dependency>
        <dependency>
            <groupId>org.springframework.cloudgroupId>
            <artifactId>spring-cloud-starter-netflix-ribbonartifactId>
        dependency>

问题：

启动报错

Description: Field autoServiceRegistration in org.springframework.cloud.client.serviceregistry.AutoServiceRegistrationAutoConfiguration required a single bean, but 2 were found: - nacosAutoServiceRegistration: defined by method 'nacosAutoServiceRegistration'in class path resource [com/alibaba/cloud/nacos/registry/NacosServiceRegistryAutoConfiguration.class] - consulAutoServiceRegistration: defined by method 'consulAutoServiceRegistration'in class path resource [org/springframework/cloud/consul/serviceregistry/ConsulAutoServiceRegistrationAutoConfiguration.class] Action: Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed

以上错误信息显示自动配置类AutoServiceRegistrationAutoConfiguration注入autoServiceRegistration属性时同时出现了两个可注入的实例bean，一个是NacosAutoServiceRegistration类的实例bean，另一个是ConsulAutoServiceRegistration类的实例bean。这里用的是NacosAutoServiceRegistration的实例bean，因此需要排除spring-cloud-starter-consul-discovery依赖下的spring-cloud-consul-discovery依赖：

   
            org.springframework.cloud
            spring-cloud-starter-consul-discovery
            2.2.0.RELEASE
            
                
                    org.springframework.cloud
                    spring-cloud-consul-discovery
                
            
     

启动报错

[com.alibaba.nacos.client.remote.worker] ERROR c.a.n.c.remote.client.grpc.GrpcClient - Server check fail, please check server nacos.shands.com ,port 1884 is available , error ={} java.util.concurrent.ExecutionException: com.alibaba.nacos.shaded.io.grpc.StatusRuntimeException: UNAVAILABLE: io exception

配置文件是8848但是报错1884，查看了很多的方案，有的是未开放端口，有的是地址错误，

我这边遇到的是版本冲突，具体的版本查看开头

spring版本升级导致的错误AddFromTemplate

        @Override
        public Collection<String> setTemplateParameter(String name,
                                                       Collection<String> rest) {
            return addTemplatedParam(rest, name);
            //return addTemplateParameter(rest, name);
        }
 

更改后

 @Override
        public Collection<String> setTemplateParameter(String name, Collection<String> rest) {
            if (rest == null) {
                rest = new ArrayList();
            }
            ((Collection)rest).add(String.format("{%s}", name));
            return (Collection)rest;
        }

更改前

// KB,MB
        factory.setMaxFileSize(maxFileSize);
        /// 总上传数据大小
        factory.setMaxRequestSize(maxRequestSize);

更改后

// KB,MB
        factory.setMaxFileSize(DataSize.parse(maxFileSize));
        /// 总上传数据大小
        factory.setMaxRequestSize(DataSize.parse(maxRequestSize));