[spring-book]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)

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)

problem

在spring boot项目中区分dev prod环境配置使用了@符号

spring:
  profiles:
    active: @profileActive@

报错：

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)

solution

1. mvn clean 后重新启动
2. 将配置加上单引号或双引号 @profileActive@ => '@profileActive@'