SpringBoot错误集汇总
1.java.lang.IllegalArgumentException: At least one base package must be specified
配置如下：
原因：主启动项上面没有添加@MapperScan注解
解决方法：添加@MapperScan注解注解
2.No qualifying bean of type ‘com.jt.mapper.UserMapper’ available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
错误导致：启动项的注解扫描为mapper文件的类的路径，不是包的路径
修改方法：启动类改为@MapperScan(“com.jt.mapper”)