问题：
D:\Java\jdk\bin\java.exe -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always "-javaagent:D:\idea\IntelliJ IDEA 2020.3.4\lib\idea_rt.jar=53953:D:\idea\IntelliJ IDEA 2020.3.4\bin" -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -Dfile.encoding=UTF-8 -classpath D:\java\jdk\jre\lib\charsets.jar;D:\java\jdk\jre\lib\deploy.jar;D:\java\jdk\jre\lib\ext\access-bridge-64.jar;D:\java\jdk\jre\lib\ext\cldrdata.jar;D:\java\jdk\jre\lib\ext\dnsns.jar;D:\java\jdk\jre\lib\ext\jaccess.jar;D:\java\jdk\jre\lib\ext\jfxrt.jar;D:\java\jdk\jre\lib\ext\localedata.jar;D:\java\jdk\jre\lib\ext\nashorn.jar;D:\java\jdk\jre\lib\ext\sunec.jar;D:\java\jdk\jre\lib\ext\sunjce_provider.jar;D:\java\jdk\jre\lib\ext\sunmscapi.jar;D:\java\jdk\jre\lib\ext\sunpkcs11.jar;D:\java\jdk\jre\lib\ext\zipfs.jar;D:\java\jdk\jre\lib\javaws.jar;D:\java\jdk\jre\lib\jce.jar;D:\java\jdk\jre\lib\jfr.jar;D:\java\jdk\jre\lib\jfxswt.jar;D:\java\jdk\jre\lib\jsse.jar;D:\java\jdk\jre\lib\management-agent.jar;D:\java\jdk\jre\lib\plugin.jar;D:\java\jdk\jre\lib\resources.jar;D:\java\jdk\jre\lib\rt.jar;E:\project\java\coupons\target\classes;E:\maven_pro\org\springframework\boot\spring-boot-starter\2.6.3\spring-boot-starter-2.6.3.jar;E:\maven_pro\org\springframework\boot\spring-boot\2.6.3\spring-boot-2.6.3.jar;E:\maven_pro\org\springframework\spring-context\5.3.15\spring-context-5.3.15.jar;E:\maven_pro\org\springframework\spring-aop\5.3.15\spring-aop-5.3.15.jar;E:\maven_pro\org\springframework\spring-beans\5.3.15\spring-beans-5.3.15.jar;E:\maven_pro\org\springframework\spring-expression\5.3.15\spring-expression-5.3.15.jar;E:\maven_pro\org\springframework\boot\spring-boot-autoconfigure\2.6.3\spring-boot-autoconfigure-2.6.3.jar;E:\maven_pro\org\springframework\boot\spring-boot-starter-logging\2.6.3\spring-boot-starter-logging-2.6.3.jar;E:\maven_pro\ch\qos\logback\logback-classic\1.2.10\logback-classic-1.2.10.jar;E:\maven_pro\ch\qos\logback\logback-core\1.2.10\logback-core-1.2.10.jar;E:\maven_pro\org\apache\logging\log4j\log4j-to-slf4j\2.17.1\log4j-to-slf4j-2.17.1.jar;E:\maven_pro\org\apache\logging\log4j\log4j-api\2.17.1\log4j-api-2.17.1.jar;E:\maven_pro\org\slf4j\jul-to-slf4j\1.7.33\jul-to-slf4j-1.7.33.jar;E:\maven_pro\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;E:\maven_pro\org\springframework\spring-core\5.3.15\spring-core-5.3.15.jar;E:\maven_pro\org\springframework\spring-jcl\5.3.15\spring-jcl-5.3.15.jar;E:\maven_pro\org\yaml\snakeyaml\1.29\snakeyaml-1.29.jar;E:\maven_pro\org\slf4j\slf4j-api\1.7.33\slf4j-api-1.7.33.jar com.sch.CouponsApplication 10:04:06.204 [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:1198) at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:308) at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:248) at org.yaml.snakeyaml.parser.ParserImpl$ParseImplicitDocumentStart.produce(ParserImpl.java:213) at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:165) at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:155) at org.yaml.snakeyaml.composer.Composer.checkNode(Composer.java:93) at org.yaml.snakeyaml.constructor.BaseConstructor.checkData(BaseConstructor.java:124) at org.yaml.snakeyaml.Yaml$1.hasNext(Yaml.java:509) 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:107) at org.springframework.boot.context.config.ConfigDataImporter.load(ConfigDataImporter.java:128) at org.springframework.boot.context.config.ConfigDataImporter.resolveAndLoad(ConfigDataImporter.java:86) at org.springframework.boot.context.config.ConfigDataEnvironmentContributors.withProcessedImports(ConfigDataEnvironmentContributors.java:116) at org.springframework.boot.context.config.ConfigDataEnvironment.processInitial(ConfigDataEnvironment.java:240) at org.springframework.boot.context.config.ConfigDataEnvironment.processAndApply(ConfigDataEnvironment.java:227) 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:102) at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEvent(EnvironmentPostProcessorApplicationListener.java:87) 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:85) at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:66) at java.util.ArrayList.forEach(ArrayList.java:1249) at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:120) at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:114) at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:65) at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:338) at org.springframework.boot.SpringApplication.run(SpringApplication.java:296) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) at com.sch.CouponsApplication.main(CouponsApplication.java:10) 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 Process finished with exit code 1
原因：application.yml的编码问题
解决：File --> Settings --> Editor —>File Encodings ，将所有的格式都转成utf-8格式
