10:01:39.361 [main] DEBUG org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter - Application failed to start due to an exception
java.lang.NoSuchMethodError: org.yaml.snakeyaml.LoaderOptions.setMaxAliasesForCollections(I)V
	at org.springframework.boot.env.OriginTrackedYamlLoader.createYaml(OriginTrackedYamlLoader.java:69)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:164)
	at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:84)
	at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50)
	at org.springframework.boot.context.config.StandardConfigDataLoader.load(StandardConfigDataLoader.java:48)
	at org.springframework.boot.context.config.StandardConfigDataLoader.load(StandardConfigDataLoader.java:34)
	at org.springframework.boot.context.config.ConfigDataLoaders.load(ConfigDataLoaders.java:103)
	at org.springframework.boot.context.config.ConfigDataImporter.load(ConfigDataImporter.java:118)
	at org.springframework.boot.context.config.ConfigDataImporter.resolveAndLoad(ConfigDataImporter.java:82)
	at org.springframework.boot.context.config.ConfigDataEnvironmentContributors.withProcessedImports(ConfigDataEnvironmentContributors.java:121)
	at org.springframework.boot.context.config.ConfigDataEnvironment.processInitial(ConfigDataEnvironment.java:242)
	at org.springframework.boot.context.config.ConfigDataEnvironment.processAndApply(ConfigDataEnvironment.java:230)
	at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:97)
	at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:89)
	at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEnvironmentPreparedEvent(EnvironmentPostProcessorApplicationListener.java:100)
	at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEvent(EnvironmentPostProcessorApplicationListener.java:86)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131)
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82)
	at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:63)
	at java.util.ArrayList.forEach(ArrayList.java:1259)
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117)
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111)
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62)
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:362)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1313)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1302)
	at com.rabbit.readwebsite.ReadWebsiteApplication.main(ReadWebsiteApplication.java:9)
10:01:39.364 [main] ERROR org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter - 

***************************
APPLICATION FAILED TO START
***************************

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    org.springframework.boot.env.OriginTrackedYamlLoader.createYaml(OriginTrackedYamlLoader.java:69)

The following method did not exist:

    org.yaml.snakeyaml.LoaderOptions.setMaxAliasesForCollections(I)V

The method's class, org.yaml.snakeyaml.LoaderOptions, is available from the following locations:

    jar:file:/home/Rabbit/.m2/repository/org/yaml/snakeyaml/1.25/snakeyaml-1.25.jar!/org/yaml/snakeyaml/LoaderOptions.class

The class hierarchy was loaded from the following locations:

    org.yaml.snakeyaml.LoaderOptions: file:/home/Rabbit/.m2/repository/org/yaml/snakeyaml/1.25/snakeyaml-1.25.jar


Action:

Correct the classpath of your application so that it contains a single, compatible version of org.yaml.snakeyaml.LoaderOptions


Process finished with exit code 1

解决方法：

可能是版本问题，

将

<dependency>
   <groupId>org.yaml</groupId>
   <artifactId>snakeyaml</artifactId>
   <version>1.25</version>
</dependency>

中的版本号去掉就好，使SpringBoot自动获取需要的版本。

<dependency>
   <groupId>org.yaml</groupId>
   <artifactId>snakeyaml</artifactId>
</dependency>