无法注册类路径资源中定义的bean 'eurekaRegistration‘

Question

我已经配置了我的eureka discovery server，它已经在本地主机http:\\localhost:8761中启动并运行。但是当我试图配置eureka discovery client (在intellij的另一个项目中)时，它是正确构建的，但是应用程序没有启动，并且它给出了下面的错误。

请在下面找到堆栈跟踪。

      .   ____          _            __ _ _
     /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
    ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
     \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
      '  |____| .__|_| |_|_| |_\__, | / / / /
     =========|_|==============|___/=/_/_/_/
     :: Spring Boot ::        (v2.1.6.RELEASE)

    2020-07-13 07:12:37.271  INFO 14932 --- [           main] c.l.m.s.c.CoreServicesApplication        : Starting CoreServicesApplication on DESKTOP-5ENMOJ0 with PID 14932 (D:\AngularCourse\core-services\out\production\classes started by Karthikeyan in D:\AngularCourse\core-services)
    2020-07-13 07:12:37.277  INFO 14932 --- [           main] c.l.m.s.c.CoreServicesApplication        : No active profile set, falling back to default profiles: default
    2020-07-13 07:12:39.277  INFO 14932 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
    2020-07-13 07:12:39.430  INFO 14932 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 134ms. Found 3 repository interfaces.
    2020-07-13 07:12:39.611  WARN 14932 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.support.BeanDefinitionOverrideException: Invalid bean definition with name 'eurekaRegistration' defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$EurekaClientConfiguration.class]: Cannot register bean definition [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$EurekaClientConfiguration; factoryMethodName=eurekaRegistration; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$EurekaClientConfiguration.class]] for bean 'eurekaRegistration': There is already [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration; factoryMethodName=eurekaRegistration; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.class]] bound.
    2020-07-13 07:12:39.630  INFO 14932 --- [           main] ConditionEvaluationReportLoggingListener : 

    Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
    2020-07-13 07:12:39.632 ERROR 14932 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

    ***************************
    APPLICATION FAILED TO START
    ***************************

    Description:

    The bean 'eurekaRegistration', defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$EurekaClientConfiguration.class], could not be registered. A bean with that name has already been defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.class] and overriding is disabled.

    Action:

    Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true


    Process finished with exit code 1

请找到我的build.gradle文件。

    plugins {
        id 'org.springframework.boot' version '2.1.6.RELEASE'
        id 'io.spring.dependency-management' version '1.0.9.RELEASE'
        id 'java'
        id 'war'
    }

    group = 'com.lti.mod.services'
    version = '0.0.1-SNAPSHOT'
    sourceCompatibility = '1.8'

    configurations {
        compileOnly {
            extendsFrom annotationProcessor
        }
    }

    repositories {
        mavenCentral()
    }

    dependencies {
        implementation('io.jsonwebtoken:jjwt:0.9.1')
        implementation('org.springframework.cloud:spring-cloud-netflix-eureka-server:2.1.5.RELEASE')
        implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
        implementation 'org.springframework.boot:spring-boot-starter-data-rest'
        implementation 'org.springframework.boot:spring-boot-starter-security'
        implementation 'org.springframework.boot:spring-boot-starter-web'
        implementation 'org.liquibase:liquibase-core'
        /*compile group: 'io.jsonwebtoken', name: 'jjwt', version: '0.9.1'*/
        compileOnly 'org.projectlombok:lombok'
        runtimeOnly 'mysql:mysql-connector-java'
        annotationProcessor 'org.projectlombok:lombok'
        providedRuntime 'org.springframework.boot:spring-boot-starter-tomcat'
        testImplementation('org.springframework.boot:spring-boot-starter-test') {
            exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
        }
        testImplementation 'org.springframework.security:spring-security-test'
    }

    test {
        useJUnitPlatform()
    }

请找到我的application.properties文件。

    spring.application.name=core-services

    #datasource
    spring.datasource.url=jdbc:mysql://localhost:3306/moddb?useUnicode=true&useLegacyDatetimeCode=false&serverTimezone=UTC&createDatabaseIfNotExist=true&allowPublicKeyRetrieval=true&userSSL=true
    spring.datasource.username=root
    spring.datasource.password=root
    spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver

    spring.jpa.hibernate.ddl-auto=none

    #liquibase
    spring.liquibase.change-log=classpath:/db/changelog/db.changelog-master.xml

    #jwt
    app.jwt.secret=RandomSecretKey
    #1 day
    app.jwt.expiration-in-ms=86400000
    app.jwt.token.prefix=Bearer
    app.jwt.header.string=Authorization

    #eureka
    eureka.client.servie-url.default-zone=http://localhost:8761
    #indicates the frequency the client sends heartbeat to server to indicate that it is alive.
    eureka.instance.lease-renewal-interval-in-seconds=30
    #incicates the duration the server waits since it received the last heartbeat before it can evict an instance from its registry
    eureka.instance.lease-expiration-duration-in-seconds=90

    #load balancing
    ribbon.eureka.enabled=true

Answer 1

错误本身说明您有两个同名的bean。试着重命名其中的一个。或者使用它在application.properties文件中建议的属性。即使它不工作，也可以给我Discovery客户端和服务器类的快照。

Answer 2

答案可以在这里找到-https://chowdera.com/2021/12/202112211422209581.html

依赖项不正确需要更改

来自spring--netflix-eureka-的服务器

从到-cloud-starter-netflix-eureka-server