springBoot-Mybatis

1. 前期准备

1. 创建SpringBoot项目
2. 引入mysql驱动依赖和mybais依赖

mysql报红：

<dependency>
     <groupId>mysql</groupId>
     <artifactId>mysql-connector-java</artifactId>
</dependency>

解决问题：
打开Settings -> Build,Execution,Deployment -> Build Tools -> Maven -> Ignored Files：

打开：Settings -> Build,Execution,Deployment -> Build Tools -> Maven -> Importing

打开：File -> Maven ->

打开settings.xml加入镜像：

<mirrors>
        <mirror>
            <id>alimaven</id>
            <name>aliyun maven</name>
            <url>
                http://maven.aliyun.com/nexus/content/groups/public/
            </url>
            <mirrorOf>central</mirrorOf>
        </mirror>
    </mirrors>

删掉已经写好的依赖：

然后再写上即可

mybatis依赖

 <!--Mybatis整合SpringBoot框架的起步依赖-->
 <dependency>
      <groupId>org.mybatis.spring.boot</groupId>
      <artifactId>mybatis-spring-boot-starter</artifactId>
      <version>2.1.4</version>
  </dependency>

3. 在application.properties添加数据库和mybatis配置或者配置application.yml

application.properties

# mysql
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
spring.datasource.username=root
spring.datasource.password=123456

# mybatis
# 对应实体类的包名
mybatis.typeAliasesPackage=com.example.ewspace.enty
# mapper.xml文件所在位置，这里我放在resources下面
mybatis.mapperLocations=classpath:mapper/*Mapper.xml

application.yml

server:
  port: 8081

spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
    driver-class-name: com.mysql.cj.jdbc.Driver

mybatis:
  mapper-locations: classpath:mapper/*Mapper.xml
  type-aliases-package: com.example.ewspace.enty

4. 可以写代码了

本文地址：https://blog.csdn.net/qq_45083168/article/details/112004079