代码和老师的一样，运行如下(课程5-5)

Question

00:28:01 WARN 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 ‘userDao’; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type ‘com.example.emos.wx.db.dao.TbUserDao’ available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
00:28:01 INFO Stopping service [Tomcat]
00:28:01 INFO

Error starting ApplicationContext. To display the conditions report re-run your application with ‘debug’ enabled.
00:28:01 ERROR

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APPLICATION FAILED TO START

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Description:

Field userDao in com.example.emos.wx.service.impl.UserServiceImpl required a bean of type ‘com.example.emos.wx.db.dao.TbUserDao’ that could not be found.

The injection point has the following annotations:
- @org.springframework.beans.factory.annotation.Autowired(required=true)

Action:

Consider defining a bean of type ‘com.example.emos.wx.db.dao.TbUserDao’ in your configuration.

Process finished with exit code 1

网上很多说是要注入@Mapper,

Answer 1

神思者 2021-01-20 08:19:58

视频里讲了要给dao加mapper注解，你回看一下视频

• 提问者 maomaoking #1

  加了@Mapper ，我调整了目录结构和在启动类加上了MapperScan(“sap路径”)，就ok了