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 3, column 13:
active: @profileActive@
^问题如上，排查问题如下：
pom.xml的profiles配置
<profiles>
<profile>
<id>dev</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<profileActive>dev</profileActive>
</properties>
</profile>
<profile>
<id>test</id>
<properties>
<profileActive>test</profileActive>
</properties>
</profile>
<profile>
<id>prod</id>
<properties>
<profileActive>prod</profileActive>
</properties>
</profile>
</profiles>pom.xml的build配置
<build>
<resources>
<resource>
<directory>lib</directory>
<targetPath>/BOOT-INF/lib/</targetPath>
<includes>
<include>**/*.jar</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.yml</include>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
</build>一定要注意：<filtering>true</filtering>
<filtering>true</filtering>可以在application.yml文件里读取到上面profileActive的值：
spring:
profiles:
active: @profileActive@这是因为， spring-boot-starter-parent自带自动化的资源过滤，那什么是资源过滤呢？
上面我们为本地环境和开发环境配置了不同的profile，在我们的代码里，就可以使用@xxx@来引用到属性，例如上面例子中，我们默认开启的环境是 带有 activeByDefault = true 的dev环境，所以@profileActive@读到的是 profile id = dev的文件下，profileActive的值，即dev。
记得要对maven进行Reimport
