Error creating bean with name 'userController':

异常： Error starting ApplicationContext. To display the conditions report re-run your application with ‘debug’ enabled.
2019-06-13 11:34:26.930 ERROR 16832 — [ main] o.s.boot.SpringApplication : Application run failed

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 ‘userService’: Unsatisfied dependency expressed through field ‘userMapper’; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘userMapper’ defined in file [
**原因：**xml配置有问题，仔细检查，我的是因为xml配置中有空格