如何修复“ ClassNotFoundException:brave.propagation.CurrentTraceContext $ ScopeDecorator”?

时间:2019-01-16 03:55:09

标签: java spring-cloud spring-cloud-sleuth zipkin

我在项目中使用了spring-cloud-starter-sleuth。然后,当它启动时,它将显示ClassNotFoundException:brave.propagation.CurrentTraceContext $ ScopeDecorator

这是一个使用Spring boot 2.1.2RELEASE和Spring cloud Greenwich.RC2的最开始的项目。在添加依赖项“ spring-cloud-starter-sleuth”之前,它运行良好;

我只在其中启动了spring-cloud-starter-sleuth的新项目(spring cloud INITIALIZR演示),但仍然无法正常工作;

POM为:

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.RC2</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-sleuth</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </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>

代码就是:

@SpringBootApplication
public class DemoApplication {

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

}

,执行为: 引起原因:java.lang.ClassNotFoundException:brave.propagation.CurrentTraceContext $ ScopeDecorator     在java.net.URLClassLoader.findClass(URLClassLoader.java:382)〜[na:1.8.0_191]     在java.lang.ClassLoader.loadClass(ClassLoader.java:424)〜[na:1.8.0_191]     在sun.misc.Launcher $ AppClassLoader.loadClass(Launcher.java:349)〜[na:1.8.0_191]     在java.lang.ClassLoader.loadClass(ClassLoader.java:357)〜[na:1.8.0_191]     ...省略了25个共同的框架

2 个答案:

答案 0 :(得分:0)

将以下依赖项添加到您的dependencyManagement部分,然后重试!

<ul>

答案 1 :(得分:0)

或者您可以使用Spring Cloud Greenwich.RELEASE版本来解决ClassNotFoundException问题