Spring cloud，配置服务器无法启动

Question

当我试图启动SpringBoot主应用程序时，出现以下异常。为什么我会得到这个特例。

异常:

<project>  <!-- Removed name spaces and posted here -->
<modelVersion>4.0.0</modelVersion>
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.4.4</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.configserver.microservices</groupId>
<artifactId>spring-cloud-config-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>spring-cloud-config-server</name>
<description>Centralized configuration server</description>
<properties>
    <java.version>1.8</java.version>
    <spring-cloud.version>2020.0.2</spring-cloud.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-config</artifactId>
    </dependency>   
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>       
</dependencies>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>${spring-cloud.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

Spring boot主java类

@SpringBootApplication
@EnableConfigServer
public class SpringCloudConfigServerApplication {

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

}

Answer 1

在如下所示对pom.xml进行更改后，其解析

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <!-- <version>2.4.4</version> -->
        <version>2.3.3.RELEASE</version><!-- Working -->
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.configserver.microservices</groupId>
    <artifactId>spring-cloud-config-server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>spring-cloud-config-server</name>
    <description>Centralized configuration server</description>
    <properties>
        <java.version>1.8</java.version>
        <!-- <spring-cloud.version>2020.0.2</spring-cloud.version> -->
        <spring-cloud.version>Hoxton.SR8</spring-cloud.version> <!--Working-->
    </properties>