springboot无法加载service的原因之一required a bean of type 'com.les.ai.service.UserService' that could not be

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-07-23 15:02:01.032 ERROR 9536 --- [  restartedMain] o.s.b.d.LoggingFailureAnalysisReporter   : 

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APPLICATION FAILED TO START
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Description:

Field userService in com.les.weixin.controller.UserController required a bean of type 'com.les.ai.service.UserService' that could not be found.


Action:

Consider defining a bean of type 'com.les.ai.service.UserService' in your configuration.

Disconnected from the target VM, address: '127.0.0.1:64731', transport: 'socket'

Process finished with exit code 0

错误原因：项目路径结构修改了一下，结果applocation与被扫描的文件夹不在同一路径下，所以扫描不到，

如图ai文件夹扫描不到

正确的路径如下：

此时ai文件夹下的文件都能被扫描