Ribbon + Eureka 报错 No instances available for eureka-client

通过查看 eureka-server 的面板是可以看到client和server都已注册的

eureka-consumer-ribbon 的 配置

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

@SpringBootApplication
@EnableDiscoveryClient
public class EurekaConsumerRibbonApplication {

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

    @Bean
    @LoadBalanced
    RestTemplate restTemplate(){
        return new RestTemplate();
    }
}
----------------
@RestController
public class TestController {
    @Autowired
    RestTemplate restTemplate;

    @RequestMapping
    public String index() {
        return restTemplate.getForObject("http://eureka-client/?param=" + getClass().getName(), String.class);

    }
}
-------------
eureka.client.service-url.defaultZone=http://localhost:1001/eureka
server.port=2004
spring.application.name=eureka-consumer-ribbon
-------------
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
            <version>2.2.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

结尾

怎么看都没问题，网上的解决办法全部试过了，最后用 MavenHelper 看到 spring-cloud-starter-netflix-eureka-client 跟 spring-cloud-starter-netflix-ribbon 存在依赖冲突 Snipaste_2021-07-26_09-22-56.png

原来前者的 3.x 版本已经内部集成了 ribbon ,解决办法就是移除掉 spring-cloud-starter-netflix-ribbon 依赖,最后成功跑出结果