一、问题：
WARN 22052 --- [ main] ConfigServletWebServerApplicationContext : No MyBatis mapper was found in '[xxx.xxx.xxxx]' package. Please check your configuration.
WARN 22052 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userController': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.qb.weifeng.mapper.UserMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
问题是你的mapper接口配置了，但是没有被扫描到
二、解决：
- mapper接口添加@Mapper或@Repository，然后在Application启动类上添加MapperScan("mapper包的路径")
- 编写MybatisPlusConfig时在上面添加MapperScan("mapper包的路径")
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