无法在Eureka中注册我的微服务

Question

我已经配置了一个Eureka服务器(它正在工作，因为我可以连接到它并查看Eureka控制台)，但我的微服务不会在其中注册。我得到一个403服务器错误(禁止)。尝试注册的微服务中的身份验证配置似乎没有问题，就好像我故意设置了错误一样，我得到了401。

我的gradle配置：

buildscript {
    ext {
        springBootVersion = '2.0.5.RELEASE'
        gradleDockerVersion   = '1.2'
    }
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "io.spring.gradle:dependency-management-plugin:0.5.6.RELEASE"
        classpath("se.transmode.gradle:gradle-docker:${gradleDockerVersion}")
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
    }
}
ext {
    springCloudVersion = 'Finchley.RELEASE'
}

dependencyManagement {
    imports {
        mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
        mavenBom("org.springframework.boot:spring-boot-dependencies:${springBootVersion}")
        mavenBom 'org.springframework.cloud:spring-cloud-netflix:2.0.1.RELEASE'
    }
}

这是我的配置。我已经将它包含在bootstrap.yaml和配置服务器中，只是为了确保：

eureka:
  client:
    serviceUrl:
      defaultZone: http://myuserid:mypassword@localhost:8761/eureka/

但由于某些原因，它被忽略了。该属性的词根是"eureka"，而不是"spring.eureka..."？

这是微服务中的错误日志，它似乎正在尝试本地主机和标准端口8080，因此忽略了上面的配置。

2018-09-28 09:31:12.763  INFO 58552 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_MTPMS_WEATHER/localhost:mtpms_weather:8080: registering service...
2018-09-28 09:31:12.767  INFO 58552 --- [  restartedMain] o.s.c.support.DefaultLifecycleProcessor  : Starting beans in phase 2147483647
2018-09-28 09:31:12.768  INFO 58552 --- [  restartedMain] d.s.w.p.DocumentationPluginsBootstrapper : Context refreshed
2018-09-28 09:31:12.803  WARN 58552 --- [nfoReplicator-0] c.n.d.s.t.d.RetryableEurekaHttpClient    : Request execution failure with status code 403; retrying on another server if available
2018-09-28 09:31:12.808  WARN 58552 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_MTPMS_WEATHER/localhost:mtpms_weather:8080 - registration failed Cannot execute request on any known server

com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
    at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:112) ~[eureka-client-1.9.3.jar:1.9.3]

Answer 1

我最终发现当前的Eureka Server中存在一个bug，如下面的答案所述：

https://github.com/spring-cloud/spring-cloud-netflix/issues/2754#issuecomment-372808529

因此，将以下@EnableWebSecurity代码片段添加到Gateway Spring Boot应用服务器类可以修复它：

import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@Configuration
@EnableAutoConfiguration
@EnableEurekaServer
@SpringBootApplication
public class DiscoveryApplication {
    public static void main(String[] args) {
        new SpringApplicationBuilder(DiscoveryApplication.class).run(args);
    }

    @EnableWebSecurity
    static class WebSecurityConfig extends WebSecurityConfigurerAdapter {
        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.csrf().disable();
        }
    }
}