Java 无法启动bean“eurekaAutoServiceRegistration”_Java_Spring Boot_Netflix Eureka

Java 无法启动bean“eurekaAutoServiceRegistration”

java spring-boot

Java 无法启动bean“eurekaAutoServiceRegistration”,java,spring-boot,netflix-eureka,Java,Spring Boot,Netflix Eureka,在SpringBoot应用程序中启动ApplicationContext时出现以下错误： org.springframework.context.ApplicationContextException: Failed to start bean 'eurekaAutoServiceRegistration'; nested exception is java.lang.NullPointerException at org.springframework.context.support.Defa

在SpringBoot应用程序中启动ApplicationContext时出现以下错误：

org.springframework.context.ApplicationContextException: Failed to start bean 'eurekaAutoServiceRegistration'; nested exception is java.lang.NullPointerException
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:50) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:348) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:151) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:114) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:880) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:144) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.10.RELEASE.jar:1.5.10.RELEASE]
at es.ual.acg.cos.abstractcomponents.AbstractcomponentsApplication.main(AbstractcomponentsApplication.java:12) [classes/:na]

    Caused by: java.lang.NullPointerException: null
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.maybeInitializeClient(EurekaServiceRegistry.java:56) ~[spring-cloud-netflix-eureka-client-1.4.3.RELEASE.jar:1.4.3.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.register(EurekaServiceRegistry.java:37) ~[spring-cloud-netflix-eureka-client-1.4.3.RELEASE.jar:1.4.3.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration.start(EurekaAutoServiceRegistration.java:80) ~[spring-cloud-netflix-eureka-client-1.4.3.RELEASE.jar:1.4.3.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:175) ~[spring-context-4.3.14.RELEASE.jar:4.3.14.RELEASE]
... 14 common frames omitted

我已经在主类中使用decorator@enableurekaclient启用了Eureka客户端

我已经配置了带有以下内容的.properties文件：

eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/
eureka.instance.preferIpAddress=true

我使用：

<dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        <version>1.4.3.RELEASE</version>
</dependency>

也许，您可以使用其他一些json反序列化依赖项。 Jackson是SpringCloud的默认序列化依赖项

可能是

<dependency>
  <groupId>com.alibaba</groupId>
  <actifactId>fastjson</actifactId>
</dependency>

我通过删除此依赖项来解决此问题。

也许，您可以使用其他一些json反序列化依赖项。 Jackson是SpringCloud的默认序列化依赖项

可能是

<dependency>
  <groupId>com.alibaba</groupId>
  <actifactId>fastjson</actifactId>
</dependency>

我通过删除此依赖项来解决此问题。

我遇到了相同的问题，原因是版本冲突

我的springboot版本是1.5.9。在发布版本中，我的project maven依赖项中止如下：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.9.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.2.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpcore</artifactId>
        <version>4.2.1</version>
    </dependency>
<dependencies>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Dalston.SR1</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

原因是因为我介绍了httpcomponents，它的版本是4.2.1，但与eureka介绍的httpcomponents版本不同。版本是httpclient/4.5.3和httpcore/4.4.6，你可以使用mvn dependency:tree来检查它，我认为这是原因这导致启动bean“eurekaAutoServiceRegistration”失败

最后，我将httpclient的版本更改为4.5.3，将httpcore的版本更改为4.4.6，然后它就可以工作了，我希望它能帮助您。我遇到了同样的问题，原因是版本冲突

我的springboot版本是1.5.9。在发布版本中，我的project maven依赖项中止如下：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.9.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.2.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpcore</artifactId>
        <version>4.2.1</version>
    </dependency>
<dependencies>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Dalston.SR1</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

最后，我将httpclient的版本更改为4.5.3，httpcore的版本更改为4.4.6，然后它就可以工作了，我希望它能帮助您^ ^ ^ ^

您找到解决这个问题的方法了吗？我似乎也在经历同样的事情。你有没有找到解决这个问题的办法？我似乎也在经历同样的事情。