Sping Cloud项目启动报A component required a bean of type 'com.tianyan.bbc.dao.SecurityUserBaseMapper' that could not be found.

项目构建正常，启动和Debug报以下错误：

Error starting ApplicationContext. To display the conditions report re-run your application with ‘debug‘ enabled.
2018-12-14 09:49:32.038 [main] ERROR o.s.b.diagnostics.LoggingFailureAnalysisReporter -

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APPLICATION FAILED TO START
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Description:

A component required a bean of type ‘com.tianyan.bbc.dao.SecurityUserBaseMapper‘ that could not be found.

Action:

Consider defining a bean of type ‘com.tianyan.bbc.dao.SecurityUserBaseMapper‘ in your configuration.

Disconnected from the target VM, address: ‘127.0.0.1:56886‘, transport: ‘socket‘

Process finished with exit code 1

解决办法：

启动类上加上

@MapperScan({ "com.tianyan.bbc.dao"})