报错Field Mapper in xxx.xxxServiceImpl required a bean of type ‘dao.xxxMapper‘ that could not be found
报错Field Mapper in xxx.xxxServiceImpl required a bean of type ‘dao.xxxMapper’ that could not be found
先说两个注释的区别：
- @Mapper不需要配置扫描地址，通过xml里面的namespace里面的接口地址，生成了Bean后注入到Service层中。
- @Repository需要在Spring中配置扫描地址，然后生成Dao层的Bean才能被注入到Service层中。
方法一：
@Repository改为@Mapper
方法二：
@Repository不改，在启动类中配置扫描地址
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