SpringCloud整合nacos启动异常： Application failed to connect to Nacos server: "" Action: Please check you
一. 背景
在搭建SpringCloud整合nacos环境，服务有springcloud-product提供者和springcloud-order消费者，启动服务报异常如下：
2020-04-29 18:30:32.183 INFO 8228 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$266b225b] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying). ____ _ __ _ _/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \\\/ ___)| |_)| | | | | || (_| | ) ) ) )' |____| .__|_| |_|_| |_\__, | / / / /=========|_|==============|___/=/_/_/_/:: Spring Boot :: (v2.1.6.RELEASE)2020-04-29 18:30:33.078 ERROR 8228 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :***************************APPLICATION FAILED TO START***************************Description:Application failed to connect to Nacos server: ""Action:Please check your Nacos server configProcess finished with exit code 1
检查项目配置，发现配置都是OK的，疑惑了半天，下面贴一下项目环境。
二. 项目配置
1. 父工程依赖
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>org.example</groupId><artifactId>springcloud-ribbon-hystrix</artifactId><packaging>pom</packaging><version>1.0-SNAPSHOT</version><modules><module>springcloud-product</module><module>springcloud-order</module></modules><properties><project.build.sourceEncoding> UTF-8 </project.build.sourceEncoding><project.reporting.outputEncoding> UTF-8 </project.reporting.outputEncoding><java.version> 1.8 </java.version></properties><dependencyManagement><dependencies><!--cloud --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Greenwich.SR2</version><type>pom</type><scope>import</scope></dependency><!-- SpringBoot的依赖配置 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>2.1.6.RELEASE</version><type>pom</type><scope>import</scope></dependency><!-- Alibaba-Cloud --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>2.1.1.RELEASE</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement></project>
2. springcloud-product工程
生产者springcloud-product和消费者springcloud-order依赖信息和配置基本一样，这里就贴springcloud-product的配置
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactId>springcloud-ribbon-hystrix</artifactId><groupId>org.example</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>springcloud-product</artifactId><properties><project.build.sourceEncoding> UTF-8 </project.build.sourceEncoding><project.reporting.outputEncoding> UTF-8 </project.reporting.outputEncoding><java.version> 1.8 </java.version></properties><dependencies><!-- web --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- actuator --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></dependency><!-- Alibaba-nacos服务发现--><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><!-- Alibaba-nacos配置中心--><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId></dependency><!-- nacos-client --><dependency><groupId>com.alibaba.nacos</groupId><artifactId>nacos-client</artifactId><version>1.2.0</version></dependency><!-- hystrix断路器 --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-hystrix</artifactId></dependency><!-- openfeign客户端 --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency><!-- lombok --><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency></dependencies></project>
3. springcloud-product工程
server:port: 8013spring:application:name: nacos-productcloud:nacos:discovery:enabled: trueserver-addr: 130.252.102.241:8848register-enabled: true
4. 启动类ProductApp
package com.thinkingcao.product;import org.springframework.boot.SpringApplication;import org.springframework.cloud.client.SpringCloudApplication;/** * @desc: 商品服务-提供者 * @author: cao_wencao * @date: 2020-04-29 17:48 */@SpringCloudApplicationpublic class ProductApp {public static void main(String[] args) {SpringApplication.run(ProductApp.class, args);}}
三. 原因总结
- 在
application.yml文件中我只配置了服务的注册与发现，并没有使用nacos的配置中心功能，但是我引用了spring-cloud-starter-alibaba-nacos-config这个包，是用来做配置中心的，这里要知道nacos为我们做了许多工作，在程序启动时，会动态的根据引入的依赖去加载初始对应的配置，无论是注册中心还是配置中心，所以我们既然没用到config的功能，就把这个依赖去掉。 - 注意：
SpringCloud项目中如果引用了nacos-discovery或者nacos-config，都无需再像之前使用Eureka那样加入@EnableDiscoveryClient注解启用其服务的注册与发现相关功能，可以省略掉。
四. 解决方式
1. 第一种方式
在pom.xml中去掉下面这个依赖
2. 第二种方式
新建bootstrap.yml，在bootstrap.yml中配置nacos-config的相关属性，这个属性是禁用Nacos Config自动配置，设置spring.cloud.nacos.config.enabled = false禁用Spring Cloud Nacos配置自动配置。
spring:cloud:nacos:config:enabled: false #禁用nacos-config自动配置功能
五. 参考文档阿里巴巴文档
Spring Cloud Alibaba参考文档： Spring Cloud Alibaba参考文档
妖狐艹你老母
柔情只为你懂
还没有评论，来说两句吧...