在启动SpringBoot应用时遇到错误，由于YAML配置文件中使用了非法字符 '@' 开始标记，导致配置加载失败。具体错误为ScannerException，提示在第19行发现'@'不能作为任何标记的开始。解决方案是在Maven资源配置中启用filtering，以在复制资源文件时替换属性值。
SpringBoot打包将jar包与lib依赖、配置文件分开-问题1 ：Spring多环境配置
### spring配置
spring:
## 多环境配置
profiles:
active: @profile.name@ #多环境配置，默认为dev开发环境
DeBug：在 YAML 中，@ 不是用来开始标记的有效字符。如下
DEBUG org.springframework.boot.context.logging.ClasspathLoggingApplicationListener - Application failed to start with classpath: [file:/D:/WG/gDesign/digital-core-master/admin/timo/config/]
19:40:52.014 [background-preinit] DEBUG org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator - Loaded expression factory via original TCCL
19:40:52.016 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator as ValidatorFactory-scoped message interpolator.
19:40:52.017 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.resolver.JPATraversableResolver as ValidatorFactory-scoped traversable resolver.
19:40:52.017 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.util.ExecutableParameterNameProvider as ValidatorFactory-scoped parameter name provider.
19:40:52.017 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.DefaultClockProvider as ValidatorFactory-scoped clock provider.
19:40:52.017 [background-preinit] DEBUG org.hibernate.validator.internal.engine.ValidatorFactoryImpl - HV000234: Using org.hibernate.validator.internal.engine.scripting.DefaultScriptEvaluatorFactory as ValidatorFactory-scoped script evaluator factory.
19:40:52.172 [restartedMain] ERROR org.springframework.boot.SpringApplication - Application run failed
java.lang.IllegalStateException: Failed to load property source from location ‘classpath:/application.yml’
at org.springframework.boot.context.config.ConfigFileApplicationListener
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Loader.load(ConfigFileApplicationListener.java:334) at org.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:209) at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:192) at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:179) at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:165) at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:75) at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54) at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:347) at org.springframework.boot.SpringApplication.run(SpringApplication.java:306) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) at com.linln.admin.BootApplication.main(BootApplication.java:20) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) Caused by: org.yaml.snakeyaml.scanner.ScannerException: while scanning for the next token found character '@' that cannot start any token. (Do not use @ for indentation) in 'reader', line 19, column 13: active: @profile.name@ ^ at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:419) at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227) at org.yaml.snakeyaml.parser.ParserImpl
Loader.load(ConfigFileApplicationListener.java:334)atorg.springframework.boot.context.config.ConfigFileApplicationListener.addPropertySources(ConfigFileApplicationListener.java:209)atorg.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:192)atorg.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:179)atorg.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:165)atorg.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)atorg.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)atorg.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)atorg.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)atorg.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:75)atorg.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)atorg.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:347)atorg.springframework.boot.SpringApplication.run(SpringApplication.java:306)atorg.springframework.boot.SpringApplication.run(SpringApplication.java:1260)atorg.springframework.boot.SpringApplication.run(SpringApplication.java:1248)atcom.linln.admin.BootApplication.main(BootApplication.java:20)atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)atsun.reflect.NativeMethodAccessorImpl.invoke(UnknownSource)atsun.reflect.DelegatingMethodAccessorImpl.invoke(UnknownSource)atjava.lang.reflect.Method.invoke(UnknownSource)atorg.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)Causedby:org.yaml.snakeyaml.scanner.ScannerException:whilescanningforthenexttokenfoundcharacter′@′thatcannotstartanytoken.(Donotuse@forindentation)in′reader′,line19,column13:active:@profile.name@atorg.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:419)atorg.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:227)atorg.yaml.snakeyaml.parser.ParserImplParseBlockMappingValue.produce(ParserImpl.java:586)
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.composeNode(Composer.java:124)
at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:236)
at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:227)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:215)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:144)
at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:236)
at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:227)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:215)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:144)
at org.yaml.snakeyaml.composer.Composer.composeValueNode(Composer.java:236)
at org.yaml.snakeyaml.composer.Composer.composeMappingChildren(Composer.java:227)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:215)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:144)
at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:85)
at org.yaml.snakeyaml.constructor.BaseConstructor.getData(BaseConstructor.java:123)
at org.yaml.snakeyaml.Yaml
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1.next(Yaml.java:547) at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:160) at org.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:134) at org.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:75) at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50) at org.springframework.boot.context.config.ConfigFileApplicationListener
1.next(Yaml.java:547)atorg.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:160)atorg.springframework.beans.factory.config.YamlProcessor.process(YamlProcessor.java:134)atorg.springframework.boot.env.OriginTrackedYamlLoader.load(OriginTrackedYamlLoader.java:75)atorg.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50)atorg.springframework.boot.context.config.ConfigFileApplicationListenerLoader.loadDocuments(ConfigFileApplicationListener.java:574)
at org.springframework.boot.context.config.ConfigFileApplicationListener$Loader.load(ConfigFileApplicationListener.java:528)
… 28 common frames omitted
解决方法：filtering设置为 true，以便 Maven 在拷贝资源文件时替换其中的属性值
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<!--将如下格式配置文件拷贝-->
<exclude>*.properties</exclude>
<exclude>*.yml</exclude>
<exclude>*.xml</exclude>
<exclude>*.txt</exclude>
</includes>
<filtering>true</filtering><!-- 设置为 true，以便 Maven 在拷贝资源文件时替换其中的属性值 -->
</resource>
</resources>
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