没有hosts文件，是不是说明我的eureka注册失败了？

老师之前配置的eureka集群，是必须先启动的吧

老师你那个运行脚本能不能发一个给我，文档里的粘贴出来都是乱的。然后那个运行命令我也用不了，说是找不到命令，我用的是centOS 6.5 的版本

老师，请问我这个启动错误是什么原因呀，感觉都配置好了

老师麻烦你帮我看看这是什么问题，配置文件检查了几遍

老师您好：

这是我在gitee上面新建的配置文件：

eureka注册中心的配置文件：

# 端口号配置
server:
  port: 8080

# 配置应用名称
spring:
  application:
    name: eureka-server

eureka:
  client:
    fetch-registry: false
    register-with-eureka: false
    service-url:
      defaultZone: http://localhost:8080/eureka/

配置中心服务端的配置文件：

server:
  port: 8082

spring:
  application:
    name: config-server
  cloud:
    config:
      server:
        git:
          uri: https://gitee.com/vjxa/cloudconfig.git
          username: vjxa
          password: 密码

启动报错：

访问了springcloud默认的注册中心地址，但是我在服务端的配置文件里面加上eureka注册中心地址后可以正常访问：

server:
  port: 8082

spring:
  application:
    name: config-server
  cloud:
    config:
      server:
        git:
          uri: https://gitee.com/vjxa/cloudconfig.git
          username: vjxa
          password: 密码
eureka:
  client:
    service-url:
      defaultZone: http://localhost:8080/eureka/

我在远程的仓库地址已经设置了注册中心的地址，在服务端还要设置一遍，这是为什么？

eureka集群搭建完，防火墙已经关闭，启动集群失败，错误信息如下

Ribbon 实现负载均衡的编码有两种方式：

1、通过在 RestTemplate 上配置注解 @LoadBalanced;

2、通过类 RibbonLoadBalancerClient 的 choose() 方法实现。我看资料上 RibbonLoadBalancerClient 这个类是可以自动注入的，并且我在测试类中也实现了自动注入的调用：

package cn.edu.hyit.test;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest()
public class LoadBalanceTest {

    @Autowired
    RibbonLoadBalancerClient client;

    @Test
    public void test(){
        for (int i = 0; i < 10; i++) {
            ServiceInstance instance = this.client.choose("user-service");
            System.out.println(instance.getHost() + ":" + instance.getPort());
        }
    }
}

结果为：

但是当我在 controller 中对 RibbonLoadBalancerClient 这个类进行自动注入时，会报错，代码如下：

package cn.edu.hyit.user.controller;

import cn.edu.hyit.user.pojo.User;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
@RequestMapping("usercontroller")
@Slf4j
public class UserController {
    @Autowired
    private RestTemplate restTemplate;
    @Autowired
    private RibbonLoadBalancerClient ribbonLoadBalancerClient;

    @RequestMapping("findByIdByRibbon2/{id}")
    public User findByIdByRibbon2(@PathVariable("id") Integer id) {
        log.debug("findByIdByRibbon Method is Running...");

        ServiceInstance serviceInstance = ribbonLoadBalancerClient.choose("user-service");
        String url = "http://"+ serviceInstance.getHost() + ":" + serviceInstance.getPort() + "/usercontroller/" + id;
        System.out.println(url);
        User user = restTemplate.getForObject(url, User.class);
        return user;
    }
}

报错如下：

org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1506) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1101) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:583) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:372) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1341) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.8.RELEASE.jar:5.0.8.RELEASE]

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:398) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:330) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1258) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) [spring-boot-2.0.4.RELEASE.jar:2.0.4.RELEASE]

at cn.edu.hyit.ConsumerApplication.main(ConsumerApplication.java:14) [classes/:na]

2020-05-14 15:22:12.532 ERROR 13804 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************

APPLICATION FAILED TO START

***************************

Description:

Field ribbonLoadBalancerClient in cn.edu.hyit.user.controller.UserController required a bean of type 'org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient' that could not be found.

Action:

Consider defining a bean of type 'org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient' in your configuration.

使用的 Spring Cloud 的版本为 Finchley.SR1。

请帮忙看看这个报错，谢谢！

问题解决了,重新打包了一下就好了..........................

搭建完成高可用集群后访问地址发现没有创建实例，host地址已经配置，防火墙已关

euerka server集群创建后不显示实例，防火墙已经关闭，Windows中hosts文件中已经添加虚拟机主机地址，euerka client端访问服务器显示找不到主机