今日改造SpringBoot項目時，發現部分子項目下的頁面報錯，異常信息顯示爲：創建Bean錯誤，底層的原因是無法找到Mapper文件的依賴關係，Spring無法自動裝配，建議將自動裝配設置爲true。
經過一番的瞭解與學習，通過添加@MapperScan即可解決，記錄以備後用！
完整的異常信息爲：
{success=false, errorMessage=Error creating bean with name 'XXXController': Unsatisfied dependency expressed through field 'XXXService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'XXXService': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.XXX.modules.XXX.mapper.XXXMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}, message=org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'XXXController': Unsatisfied dependency expressed through field 'XXXService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'XXXService': Unsatisfied dependency expressed through field 'mapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.XXX.modules.XXX.mapper.XXXMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}}
解決辦法：
在SpringBoot的Application中添加@MapperScan註解，value=“"com.**.mapper"”