这篇文章主要介绍了Springboot mybatis常见配置问题解决,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
Invalid bound statement (not found): com.example.blog.dao.DemoMapper.selectByExample"
打包的时候没有打包 mapper.xml 文件
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*</include>
</includes>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
没有扫描到 mapper.xml 文件
mybatis: # mapper.xml 文件路径 mapper-locations: classpath:com/example/blog/dao/mapper/*.xml # mybatis的xml文件中需要写类的全限定名，可以配置自动扫描包路径给类配置别名 type-aliases-package: com.example.blog.entity
Field demoMapper in com.example.demo.service.DemoServiceImpl required a bean of type 'com.example.demo.dao.DemoMapper' that could not be found.
原因：找不到dao层的mapper文件
启动类添加mapper扫描
@MapperScan("com.example.demo.dao")
@SpringBootApplication
public class BlogApplication {
}
添加@Mapper注解
