其實springBoot 整合Eureka 是比較簡單 ,可是我發現很多人整合后會啟動不了,我這里列出比較常見的報錯的原因
報:A child container failed during start
如圖下這樣
這個原因是因為pom.xml 沒有添加
- <dependencyManagement>
- <dependencies>
- <dependency>
- <groupId>org.springframework.cloud</groupId>
- <artifactId>spring-cloud-dependencies</artifactId>
- <version>Finchley.SR1</version>
- <type>pom</type>
- <scope>import</scope>
- </dependency>
- </dependencies>
- </dependencyManagement>
假如添加后依然報錯:
報錯原因是因為Springboot 與 SpringCloud 版本不配對
修改后就行正常運行了!最后把他們相對應的版本貼出來,可以看著相對應的springboot版本改springCloud
Spring Boot Spring Cloud
1.2.x Angel版本
1.3.x Brixton版本
1.4.x stripes Camden版本
1.5.x Dalston版本、Edgware版本
2.0.x Finchley版本
SpringCloud異常(Euruka)
Application run failed java.lang.NoSuchMethodError: org.springframework.boot.builder.SpringApplicationBuilder
在測試Euruka作為服務注冊中心的時候碰到了這個問題,錯誤提示如下:
- "C:\Program Files\Java\jdk1.8.0_161\bin\java" -XX:TieredStopAtLevel=1 -........ com.fangxing.springcloud.eurukaserver.EurukaServerApplication
- 15:04:35.690 [main] DEBUG org.springframework.boot.context.logging.ClasspathLoggingApplicationListener - Application failed to start with classpath: ....... file:/D:/Program%20Files/JetBrains/IntelliJ%20IDEA%202017.3.5/lib/idea_rt.jar]
- 15:04:35.867 [background-preinit] DEBUG org.jboss.logging - Logging Provider: org.jboss.logging.Log4j2LoggerProvider
- 15:04:35.869 [background-preinit] INFO org.hibernate.validator.internal.util.Version - HV000001: Hibernate Validator 6.0.7.Final
- 15:04:35.884 [background-preinit] DEBUG org.hibernate.validator.internal.engine.resolver.TraversableResolvers - Cannot find javax.persistence.Persistence on classpath. Assuming non JPA 2 environment. All properties will per default be traversable.
- 15:04:35.890 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ValidationXmlParser - Trying to load META-INF/validation.xml for XML based Validator configuration.
- 15:04:35.892 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ResourceLoaderHelper - Trying to load META-INF/validation.xml via TCCL
- 15:04:35.893 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ResourceLoaderHelper - Trying to load META-INF/validation.xml via Hibernate Validator's class loader
- 15:04:35.894 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ValidationXmlParser - No META-INF/validation.xml found. Using annotation based configuration only.
- 15:04:36.086 [background-preinit] DEBUG org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator - Loaded expression factory via original TCCL
- 15:04:36.090 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator as ValidatorFactory-scoped message interpolator.
- 15:04:36.090 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.resolver.TraverseAllTraversableResolver as ValidatorFactory-scoped traversable resolver.
- 15:04:36.090 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.util.ExecutableParameterNameProvider as ValidatorFactory-scoped parameter name provider.
- 15:04:36.090 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.DefaultClockProvider as ValidatorFactory-scoped clock provider.
- 15:04:36.090 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.scripting.DefaultScriptEvaluatorFactory as ValidatorFactory-scoped script evaluator factory.
- 15:04:36.404 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
- java.lang.NoSuchMethodError: org.springframework.boot.builder.SpringApplicationBuilder.<init>([Ljava/lang/Object;)V
- at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:120)
- at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:84)
- at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:62)
- at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
- at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
- at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
- at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
- at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:74)
- at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
- at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:351)
- at org.springframework.boot.SpringApplication.run(SpringApplication.java:317)
- at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246)
- at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234)
- at com.fangxing.springcloud.eurukaserver.EurukaServerApplication.main(EurukaServerApplication.java:16)
- Process finished with exit code 1
其根本原因是依賴包的版本沖突,我的這個pom.xml文件如下:
- <?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
- <modelVersion>4.0.0</modelVersion>
- <groupId>com.fangxing.springcloud</groupId>
- <artifactId>euruka-server</artifactId>
- <version>0.0.1-SNAPSHOT</version>
- <packaging>jar</packaging>
- <name>euruka-server</name>
- <description>Demo project for Eureka Server</description>
- <parent>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-parent</artifactId>
- <version>2.0.0.RELEASE</version>
- <relativePath/> <!-- lookup parent from repository -->
- </parent>
- <properties>
- <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
- <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
- <java.version>1.8</java.version>
- </properties>
- <dependencies>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-web</artifactId>
- </dependency>
- <dependency>
- <groupId>org.springframewor k.boot</groupId>
- <artifactId>spring-boot-starter-test</artifactId>
- <scope>test</scope>
- </dependency>
- <dependency>
- <groupId>org.springframework.cloud</groupId>
- <artifactId>spring-cloud-starter-eureka-server</artifactId>
- </dependency>
- </dependencies>
- <dependencyManagement>
- <dependencies>
- <dependency>
- <groupId>org.springframework.cloud</groupId>
- <artifactId>spring-cloud-dependencies</artifactId>
- <version>Camden.SR3</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>
這里用到的SpringBoot版本為2.0.0.0版本,我們調整一下版本,改用下面的pom.xml
- <?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
- <modelVersion>4.0.0</modelVersion>
- <groupId>com.fangxing.springcloud</groupId>
- <artifactId>euruka-server</artifactId>
- <version>0.0.1-SNAPSHOT</version>
- <packaging>jar</packaging>
- <name>euruka-server</name>
- <description>Demo project for Eureka Server</description>
- <!--基于Springboot-->
- <parent>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-parent</artifactId>
- <version>1.4.0.RELEASE</version>
- <relativePath/>
- </parent>
- <properties>
- <!--設置字符編碼及java版本-->
- <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
- <java.version>1.8</java.version>
- </properties>
- <dependencies>
- <!--增加eureka-server的依賴-->
- <dependency>
- <groupId>org.springframework.cloud</groupId>
- <artifactId>spring-cloud-starter-eureka-server</artifactId>
- </dependency>
- <!--用于測試的,本例可省略-->
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-test</artifactId>
- <scope>test</scope>
- </dependency>
- </dependencies>
- <!--依賴管理,用于管理spring-cloud的依賴,其中Camden.SR3是版本號-->
- <dependencyManagement>
- <dependencies>
- <dependency>
- <groupId>org.springframework.cloud</groupId>
- <artifactId>spring-cloud-dependencies</artifactId>
- <version>Camden.SR3</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>
啟用正常。
以上為個人經驗,希望能給大家一個參考,也希望大家多多支持我們。
原文鏈接:https://blog.csdn.net/weixin_42006112/article/details/102481050