[英]Error While Starting Eureka Server in Spring Boot Application
我有一個 Spring 引導應用程序,它是從 Spring 初始化程序創建的,它依賴於 Eureka 服務器。 當我嘗試啟動應用程序時,出現以下錯誤。 即使沒有任何變化,這種情況也會發生。
org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [com.example.demodiscoveryserver.DemoDiscoveryServerApplication]; nested exception is java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:609) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.access$800(ConfigurationClassParser.java:110) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.lambda$processGroupImports$1(ConfigurationClassParser.java:811) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at java.util.ArrayList.forEach(Unknown Source) ~[na:1.8.0_251]
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorGroupingHandler.processGroupImports(ConfigurationClassParser.java:808) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser$DeferredImportSelectorHandler.process(ConfigurationClassParser.java:779) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:192) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:319) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:236) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:706) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at com.example.demodiscoveryserver.DemoDiscoveryServerApplication.main(DemoDiscoveryServerApplication.java:12) [classes/:na]
Caused by: java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy
at sun.reflect.annotation.AnnotationParser.parseClassArray(Unknown Source) ~[na:1.8.0_251]
at sun.reflect.annotation.AnnotationParser.parseArray(Unknown Source) ~[na:1.8.0_251]
at sun.reflect.annotation.AnnotationParser.parseMemberValue(Unknown Source) ~[na:1.8.0_251]
at sun.reflect.annotation.AnnotationParser.parseAnnotation2(Unknown Source) ~[na:1.8.0_251]
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(Unknown Source) ~[na:1.8.0_251]
at sun.reflect.annotation.AnnotationParser.parseAnnotations(Unknown Source) ~[na:1.8.0_251]
at java.lang.Class.createAnnotationData(Unknown Source) ~[na:1.8.0_251]
at java.lang.Class.annotationData(Unknown Source) ~[na:1.8.0_251]
at java.lang.Class.getDeclaredAnnotations(Unknown Source) ~[na:1.8.0_251]
at org.springframework.core.annotation.AnnotationsScanner.getDeclaredAnnotations(AnnotationsScanner.java:499) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.AnnotationTypeMappings.addMetaAnnotationsToQueue(AnnotationTypeMappings.java:85) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.AnnotationTypeMappings.addAllMappings(AnnotationTypeMappings.java:79) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.AnnotationTypeMappings.<init>(AnnotationTypeMappings.java:68) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.AnnotationTypeMappings.<init>(AnnotationTypeMappings.java:46) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.AnnotationTypeMappings$Cache.createMappings(AnnotationTypeMappings.java:251) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at java.util.concurrent.ConcurrentMap.computeIfAbsent(Unknown Source) ~[na:1.8.0_251]
at org.springframework.core.annotation.AnnotationTypeMappings$Cache.get(AnnotationTypeMappings.java:247) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.AnnotationTypeMappings.forAnnotationType(AnnotationTypeMappings.java:204) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.AnnotationTypeMappings.forAnnotationType(AnnotationTypeMappings.java:186) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.AnnotationTypeMappings.forAnnotationType(AnnotationTypeMappings.java:173) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.TypeMappedAnnotation.of(TypeMappedAnnotation.java:634) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.annotation.MergedAnnotation.of(MergedAnnotation.java:596) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.type.classreading.MergedAnnotationReadingVisitor.visitEnd(MergedAnnotationReadingVisitor.java:96) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.asm.ClassReader.readElementValues(ClassReader.java:2985) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.asm.ClassReader.accept(ClassReader.java:582) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.asm.ClassReader.accept(ClassReader.java:401) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:50) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:86) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:73) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:81) ~[spring-core-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:695) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getMemberClasses(ConfigurationClassParser.java:992) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processMemberClasses(ConfigurationClassParser.java:354) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:271) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:249) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:599) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
下面是 pom.xml 文件
<?xml version="1.0" encoding="UTF-8"?>
<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
<relativePath/>
<!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo-discovery-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo-discovery-server</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Hoxton.SR4</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.5.RELEASE</version>
</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>
</project>
以下是應用程序代碼。
package com.example.demodiscoveryserver;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class DemoDiscoveryServerApplication {
public static void main(String[] args) {
SpringApplication.run(DemoDiscoveryServerApplication.class, args);
}
}
我對 Java 很陌生。 任何幫助是極大的贊賞。
謝謝
在你的 pom.xml 中使用 Spring 啟動器 web 依賴項
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
基於您的問題的運行項目示例: https://github.com/thiagochagas/eureka-server
從 pom.xml 中刪除“spring-context”:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
使用此示例創建 src/main/resources/application.properties:
server.port=8761
eureka.client.register-with-eureka=false
eureka.client.fetch-registry=false
logging.level.com.netflix.eureka=OFF
logging.level.com.netflix.discovery=OFF
我建議您清理/使依賴項的緩存無效(使用 IDE 時)。
在您的項目主文件夾中執行:
./mvnw clean install
./mvnw spring-boot:run
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