boot 整合 mybatis

pom

<dependency>
	<groupId>org.mybatis.spring.boot</groupId>
	<artifactId>mybatis-spring-boot-starter</artifactId>
	<version>1.1.1</version>
</dependency>

yaml

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/ruiwen?serverTimezone=GMT
    username: root
    password: root

# mybatis相关
mybatis:
  mapper-locations: classpath*:AdminUserMapper/*.xml
  config-location: classpath:config/mybatis-config.xml

mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <typeAliases>
        <package name="com.mybatis.domain"/>
    </typeAliases>
    <!--<mappers>-->
        <!--<mapper resource="com/ruyi/mybatis/mapper/AdminUserMapper.xml"/>-->
    <!--</mappers>-->
</configuration>

config-location：指定 MyBatis 主配置文件的位置
mapper-locations：指定 mapper 文件的位置。如果在项目中你的 mapper 文件是按目录来放置，那么对应的配置就变成：mapper-locations: classpath:mapper/*/*.xml

springboot会自动加载spring.datasource.*相关配置

在启动类中添加对mapper包扫描@MapperScan或在dao添加@Mapper

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大神文章：https://www.hifreud.com/2017/07/11/spring-boot-22-integrate-with-mybatis/