启动异常 Field XXX in XXXX required a bean of type XXXX that could not be found.

springboot

这个错误在 serviceimpl 找不到dao的时候出现，能在impl里直接点到DAO的mapper接口但是spring不认

原因是因为 springboot 有些项目会配置一个扫描Mapper接口并容器管理的配置文件

所以你要找springboot用来启动的application在当前包下是否一个config.java文件可能不叫这个

也可以直接搜索

@MapperScan

然后挨个看是不是缺少了自己要用的那个dao和mapper文件

=============

spring本身不会扫描mapper文件 springboot需要自己去写配置文件来让spring去管理mapper和 mapper接口

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启动异常 Field XXX in XXXX required a bean of type XXXX that could not be found.

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