spring boot 运行报错

17:05:12.540 [restartedMain] ERROR org.springframework.boot.SpringApplication - Application run failed
org.yaml.snakeyaml.parser.ParserException: while parsing a block mapping
in 'reader', line 2, column 3:
datasource:
^
expected <block end>, but found '<block mapping start>'
in 'reader', line 10, column 4:
show-sql: true
^

   at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:617)
   at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:165)
   at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:59)
   at org.yaml.snakeyaml.comments.CommentEventsCollector$1.peek(CommentEventsCollector.java:45)
   at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:140)
   at org.yaml.snakeyaml.comments.CommentEventsCollector.collectEvents(CommentEventsCollector.java:119)
   at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:292)
   at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:195)
   at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:313)
   at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:304)
   at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:288)
   at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:195)
   at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:313)
   at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:304)
   at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:288)
   at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:195)
   at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:115)
   at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:135)
   at org.springframework.boot.env.OriginTrackedYamlLoader$OriginTrackingConstructor.getData(OriginTrackedYamlLoader.java:99)
   at org.yaml.snakeyaml.Yaml$1.next(Yaml.java:512)
   at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:198)
   at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:166)
   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:54)
   at org.springframework.boot.context.config.StandardConfigDataLoader.load(StandardConfigDataLoader.java:36)
   at org.springframework.boot.context.config.ConfigDataLoaders.load(ConfigDataLoaders.java:105)
   at org.springframework.boot.context.config.ConfigDataImporter.load(ConfigDataImporter.java:130)
   at org.springframework.boot.context.config.ConfigDataImporter.resolveAndLoad(ConfigDataImporter.java:88)
   at org.springframework.boot.context.config.ConfigDataEnvironmentContributors.withProcessedImports(ConfigDataEnvironmentContributors.java:122)
   at org.springframework.boot.context.config.ConfigDataEnvironment.processWithProfiles(ConfigDataEnvironment.java:311)
   at org.springframework.boot.context.config.ConfigDataEnvironment.processAndApply(ConfigDataEnvironment.java:232)
   at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:102)
   at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:94)
   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.base/java.util.ArrayList.forEach(ArrayList.java:1511)
   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:373)
   at org.springframework.boot.SpringApplication.run(SpringApplication.java:331)
   at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336)
   at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325)
   at com.example.blog.BlogApplication.main(BlogApplication.java:10)
   at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
   at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.base/java.lang.reflect.Method.invoke(Method.java:564)
   at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)

Process finished with exit code 0

配置文件发一下看看

reader.datasource

你是在配置文件里配置了这个么, 检查一下 ,如果你要自己写配置文件的映射的话

@ConﬁgurationProperties(preﬁx=’'配置文件中的key的前缀")

您好，我是有问必答小助手，您的问题已经有小伙伴解答了，您看下是否解决，可以追评进行沟通哦~

如果有您比较满意的答案 / 帮您提供解决思路的答案，可以点击【采纳】按钮，给回答的小伙伴一些鼓励哦～～

ps:问答VIP仅需29元，即可享受5次/月有问必答服务，了解详情>>>https://vip.csdn.net/askvip?utm_source=1146287632