我在我的项目中使用了spring-cloud-starter-sleuth。但是当它启动时,会显示ClassNotFoundException:brave.propagation.CurrentTraceContext$ScopeDecorator。
这是一个使用Spring boot 2.1.2.RELEASE和spring cloud Greenwich.RC2的初始项目;在添加依赖“spring-cloud-starter-sleuth”之前,它可以正常运行;
我创建了一个新项目,只包含spring-cloud-starter-sleuth(spring cloud INITIALIZR演示),但它仍然无法正常工作;
POM文件如下:
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.RC2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-sleuth</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
这段代码很简单:
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
异常信息如下: 导致原因:java.lang.ClassNotFoundException: brave.propagation.CurrentTraceContext$ScopeDecorator 位置:java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_191] 加载类:ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_191] 应用类加载器:Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_191] 类加载器:ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_191] ... 共25帧被省略
spring-cloud-starter-sleuth
缺少版本号!当我应用@amaljoyc的解决方案(2.1.0.RELEASE
)时,问题得到了解决/完美运行! - xerx593