启动spring boot项目时加载配置文件报错的问题-Toy模板网

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最近把电脑重置了一下，然后重新安装各种开发软件，从gitee拉项目到本地运行时居然启动报错了：

Failed to load property source from 'file:/D:/program/IdeaProjects/layui/target/classes/application.yml'

这是加载配置文件的时候失败了，提示一堆错误信息，但是没有任何实质性的帮助。

java.lang.IllegalStateException: Failed to load property source from 'file:/D:/program/IdeaProjects/layui/target/classes/application.yml' (classpath:/application.yml)
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:553) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadForFileExtension(ConfigFileApplicationListener.java:498) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:468) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$null$7(ConfigFileApplicationListener.java:447) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_152]
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$8(ConfigFileApplicationListener.java:447) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_152]
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:444) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.lambda$load$0(ConfigFileApplicationListener.java:347) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.FilteredPropertySource.apply(FilteredPropertySource.java:54) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:335) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:226) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:210) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:200) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:188) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) ~[spring-context-5.2.8.RELEASE.jar:5.2.8.RELEASE]
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:80) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:345) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:308) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) [spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at cn.edu.sgu.www.layui.LayuiApplication.main(LayuiApplication.java:23) [classes/:na]
Caused by: org.yaml.snakeyaml.error.YAMLException: java.nio.charset.MalformedInputException: Input length = 1
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:218) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:176) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.reader.StreamReader.ensureEnoughData(StreamReader.java:171) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.reader.StreamReader.peek(StreamReader.java:126) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.scanner.ScannerImpl.scanToNextToken(ScannerImpl.java:1177) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:287) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.parser.ParserImpl$ParseImplicitDocumentStart.produce(ParserImpl.java:195) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:148) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.composer.Composer.checkNode(Composer.java:82) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.constructor.BaseConstructor.checkData(BaseConstructor.java:123) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.Yaml$1.hasNext(Yaml.java:489) ~[snakeyaml-1.26.jar:na]
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:200) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
	at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:164) ~[spring-beans-5.2.8.RELEASE.jar:5.2.8.RELEASE]
	at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:76) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.loadDocuments(ConfigFileApplicationListener.java:607) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:523) ~[spring-boot-2.3.2.RELEASE.jar:2.3.2.RELEASE]
	... 25 common frames omitted
Caused by: java.nio.charset.MalformedInputException: Input length = 1
	at java.nio.charset.CoderResult.throwException(CoderResult.java:281) ~[na:1.8.0_152]
	at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:339) ~[na:1.8.0_152]
	at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178) ~[na:1.8.0_152]
	at java.io.InputStreamReader.read(InputStreamReader.java:184) ~[na:1.8.0_152]
	at org.yaml.snakeyaml.reader.UnicodeReader.read(UnicodeReader.java:125) ~[snakeyaml-1.26.jar:na]
	at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:183) ~[snakeyaml-1.26.jar:na]
	... 43 common frames omitted

导致种情况，就是配置文件有问题，首先检查配置文件的格式是否正确（一般不是这个问题）。如果检查完了启动还是报错，查看idea里的字符编码

依次点击File->Settings...打开idea的设置界面，在搜索框输入enc，查询出来的所有选项设置都点开看一下，看到Encoding的地方都改成UTF-8。

启动spring boot项目时加载配置文件报错的问题