记录springboot项目启动失败required a single bean, but 2 were found

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我在搭建springboot项目时，启动包如下的错误

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APPLICATION FAILED TO START

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Description:

Field userService in com.king.framework.web.service.UserDetailsServiceImpl required a single bean, but 2 were found:

 - sysUserServiceImpl: defined in file [D:\workspace\self\king-spring-cloud\kingSpringSecurity\target\classes\com\king\system\service\impl\SysUserServiceImpl.class]

 - ISysUserService: defined in file [D:\workspace\self\king-spring-cloud\kingSpringSecurity\target\classes\com\king\system\service\ISysUserService.class]

Action:

Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed

项目启动发现有两个重复的bean，但实际上是service只有一个接口和一个实现类

网上说 @Primary 和@Qualifier 解决但是总不能把每一个service 都加一个注解吧。

那我现在不是出现相同bean

原来我在@MapperScan扫描的时候，扫描了包括service接口和实现类的包，改成下面就可以了

@MapperScan("com.king.**.mapper")

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