SpringBoot报错ERROR org.springframework.boot.SpringApplication – Application run failed[通俗易懂]

大家好，又见面了，我是你们的朋友全栈君。如果您正在找激活码,请点击查看最新教程,关注关注公众号 “全栈程序员社区” 获取激活教程,可能之前旧版本教程已经失效.最新Idea2022.1教程亲测有效,一键激活。

Jetbrains全系列IDE使用 1年只要46元 售后保障 童叟无欺

有时候启动springboot会成功，有时候会报下面的错误

10:27:27.556 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
org.yaml.snakeyaml.error.YAMLException: java.nio.charset.MalformedInputException: Input length = 1
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:218)
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:176)
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:171)
	at org.yaml.snakeyaml.reader.StreamReader.peek(StreamReader.java:126)
	at org.yaml.snakeyaml.scanner.ScannerImpl.scanToNextToken(ScannerImpl.java:1177)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:287)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseImplicitDocumentStart.produce(ParserImpl.java:195)
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
	at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:148)
	at org.yaml.snakeyaml.composer.Composer.checkNode(Composer.java:82)
	at org.yaml.snakeyaml.constructor.BaseConstructor.checkData(BaseConstructor.java:123)
	at org.yaml.snakeyaml.Yaml$1.hasNext(Yaml.java:507)
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:200)
	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:45)
	at org.springframework.boot.context.config.StandardConfigDataLoader.load(StandardConfigDataLoader.java:34)
	at org.springframework.boot.context.config.ConfigDataLoaders.load(ConfigDataLoaders.java:102)
	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:118)
	at org.springframework.boot.context.config.ConfigDataEnvironment.processInitial(ConfigDataEnvironment.java:230)
	at org.springframework.boot.context.config.ConfigDataEnvironment.processAndApply(ConfigDataEnvironment.java:217)
	at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:88)
	at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:80)
	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:203)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:196)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:170)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:148)
	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:1257)
	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:1309)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298)
	at com.genpe.taxi.SpringcloudEurekaApplication.main(SpringcloudEurekaApplication.java:12)
Caused by: java.nio.charset.MalformedInputException: Input length = 1
	at java.nio.charset.CoderResult.throwException(CoderResult.java:281)
	at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339)
	at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
	at java.io.InputStreamReader.read(InputStreamReader.java:184)
	at org.yaml.snakeyaml.reader.UnicodeReader.read(UnicodeReader.java:125)
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:183)
	... 43 common frames omitted

仔细看是yml文件内报的错误，然后去yml文件中查找，居然定位到是注释的问题，因为在yml文件中使用了中文注释，源文件显示正常，但是运行之后在target中的yml文件显示中文乱码，原来是启动项目时提示使用gbk编码，手贱就点了一下，然后就这样了，重新改回utf-8就行了。