在测试Euruka作为服务注册中心的时候碰到了这个问题，错误提示如下：
1 "C:\Program Files\Java\jdk1.8.0_161\bin\java" -XX:TieredStopAtLevel=1 -........ com.fangxing.springcloud.eurukaserver.EurukaServerApplication 2 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] 3 15:04:35.867 [background-preinit] DEBUG org.jboss.logging - Logging Provider: org.jboss.logging.Log4j2LoggerProvider 4 15:04:35.869 [background-preinit] INFO org.hibernate.validator.internal.util.Version - HV000001: Hibernate Validator 6.0.7.Final 5 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. 6 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. 7 15:04:35.892 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ResourceLoaderHelper - Trying to load META-INF/validation.xml via TCCL 8 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
9 15:04:35.894 [background-preinit] DEBUG org.hibernate.validator.internal.xml.ValidationXmlParser - No META-INF/validation.xml found. Using annotation based configuration only. 10 15:04:36.086 [background-preinit] DEBUG org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator - Loaded expression factory via original TCCL 11 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. 12 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. 13 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. 14 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 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. 16 15:04:36.404 [main] ERROR org.springframework.boot.SpringApplication - Application run failed 17 java.lang.NoSuchMethodError: org.springframework.boot.builder.SpringApplicationBuilder.<init>([Ljava/lang/Object;)V 18 at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:120) 19 at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:84) 20 at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:62) 21 at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) 22 at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) 23 at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) 24 at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) 25 at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:74) 26 at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54) 27 at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:351) 28 at org.springframework.boot.SpringApplication.run(SpringApplication.java:317) 29 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1246) 30 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1234) 31 at com.fangxing.springcloud.eurukaserver.EurukaServerApplication.main(EurukaServerApplication.java:16) 32
33 Process finished with exit code 1其根本原因是依赖包的版本冲突，我的这个pom.xml文件如下：
1 <?xml version="1.0" encoding="UTF-8"?>
2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4 <modelVersion>4.0.0</modelVersion>
5
6 <groupId>com.fangxing.springcloud</groupId>
7 <artifactId>euruka-server</artifactId>
8 <version>0.0.1-SNAPSHOT</version>
9 <packaging>jar</packaging>
10
11 <name>euruka-server</name>
12 <description>Demo project for Eureka Server</description>
13
14 <parent>
15 <groupId>org.springframework.boot</groupId>
16 <artifactId>spring-boot-starter-parent</artifactId>
17 <version>2.0.0.RELEASE</version>
18 <relativePath/> <!-- lookup parent from repository -->
19 </parent>
20
21 <properties>
22 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
23 <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
24 <java.version>1.8</java.version>
25 </properties>
26
27 <dependencies>
28 <dependency>
29 <groupId>org.springframework.boot</groupId>
30 <artifactId>spring-boot-starter-web</artifactId>
31 </dependency>
32
33 <dependency>
34 <groupId>org.springframewor k.boot</groupId>
35 <artifactId>spring-boot-starter-test</artifactId>
36 <scope>test</scope>
37 </dependency>
38
39
40 <dependency>
41 <groupId>org.springframework.cloud</groupId>
42 <artifactId>spring-cloud-starter-eureka-server</artifactId>
43 </dependency>
44 </dependencies>
45
46 <dependencyManagement>
47 <dependencies>
48 <dependency>
49 <groupId>org.springframework.cloud</groupId>
50 <artifactId>spring-cloud-dependencies</artifactId>
51 <version>Camden.SR3</version>
52 <type>pom</type>
53 <scope>import</scope>
54 </dependency>
55 </dependencies>
56 </dependencyManagement>
57
58 <build>
59 <plugins>
60 <plugin>
61 <groupId>org.springframework.boot</groupId>
62 <artifactId>spring-boot-maven-plugin</artifactId>
63 </plugin>
64 </plugins>
65 </build>
66
67
68 </project>这里用到的SpringBoot版本为2.0.0.0版本，我们调整一下版本，改用下面的pom.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4 <modelVersion>4.0.0</modelVersion>
5
6 <groupId>com.fangxing.springcloud</groupId>
7 <artifactId>euruka-server</artifactId>
8 <version>0.0.1-SNAPSHOT</version>
9 <packaging>jar</packaging>
10
11 <name>euruka-server</name>
12 <description>Demo project for Eureka Server</description>
13
14 <!--基于Springboot-->
15 <parent>
16 <groupId>org.springframework.boot</groupId>
17 <artifactId>spring-boot-starter-parent</artifactId>
18 <version>1.4.0.RELEASE</version>
19 <relativePath/>
20 </parent>
21
22 <properties>
23 <!--设置字符编码及java版本-->
24 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
25 <java.version>1.8</java.version>
26 </properties>
27
28 <dependencies>
29 <!--增加eureka-server的依赖-->
30 <dependency>
31 <groupId>org.springframework.cloud</groupId>
32 <artifactId>spring-cloud-starter-eureka-server</artifactId>
33 </dependency>
34 <!--用于测试的，本例可省略-->
35 <dependency>
36 <groupId>org.springframework.boot</groupId>
37 <artifactId>spring-boot-starter-test</artifactId>
38 <scope>test</scope>
39 </dependency>
40 </dependencies>
41
42 <!--依赖管理，用于管理spring-cloud的依赖，其中Camden.SR3是版本号-->
43 <dependencyManagement>
44 <dependencies>
45 <dependency>
46 <groupId>org.springframework.cloud</groupId>
47 <artifactId>spring-cloud-dependencies</artifactId>
48 <version>Camden.SR3</version>
49 <type>pom</type>
50 <scope>import</scope>
51 </dependency>
52 </dependencies>
53 </dependencyManagement>
54
55 <build>
56 <plugins>
57 <plugin>
58 <groupId>org.springframework.boot</groupId>
59 <artifactId>spring-boot-maven-plugin</artifactId>
60 </plugin>
61 </plugins>
62 </build>
63
64
65 </project>
启用正常。
参考文档
https://stackoverflow.com/questions/44166221/spring-boot-2-0-0-m1-nosuchmethoderror-org-springframework-boot-builder-springa
