‘com.yg.mybatisgenerator.springbootTest.GeneratorTest’: Unsatisfied dependency expressed through field
‘xxxMapper’)

问题背景

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name
 'com.yg.mybatisgenerator.springbootTest.GeneratorTest': Unsatisfied dependency expressed through field
  'generatorRecordMapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 
  'com.yg.mybatisgenerator.dao.mysql.GeneratorRecordMapper' available: expected at least 1 bean which 
  qualifies as autowire candidate. Dependency annotations: 
  {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.yg.mybatisgenerator.dao.mysql.GeneratorRecordMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1799)

解决方案

1 因为找不到mapper所在的地方，在启动类上添加mapper所在的路径，添加扫描注解@MapperScan

@MapperScan("com/data/dao/mysql")
@SpringBootApplication

心得

• @MapperScan就是去扫描mapper映射文件进行匹配

作为程序员第 44 篇文章，每次写一句歌词记录一下，看看人生有几首歌的时间，wahahaha …

Lyric：篮筐变得好高