一起学习Spring boot 2.1.X | 第六篇：Mybatis Druid 数据库(XML)

运行展示

步骤

1.在resources下新建文件夹mapper/UserMapper.xml

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.springboot.dao.UserDao"> <select id="queryUser" resultType="User"> select * from user </select> </mapper>

注：id和方法名相同，dao层和mapping名必须相同

2.application.properties

#配置Mybatis的扫描路径(注解形式需开启以下两个)/typeAliasesPackage：dao层路径/mapperLocations：mapper位置(resources下) #mybatis.typeAliasesPackage=com.springboot.dao #mybatis.mapperLocations=classpath:mapper/*.xml