先用idea创建一个项目
选择如图中
创建成功会添加如下依赖
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
用mybatis生成mapper和模型
如果生成的xml放在 包里面 要在pom.xml的标签中加入:
<resources>
<!--maven xml不参与编译-->
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
加了之后 包里面的xml才会进行编译
在application.properties中加入
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/platform-shop
spring.datasource.password=123456
spring.datasource.username=root
#mybatis.mapper-locations=classpath*:com/example/demo/Mapper/xml/*.xml
mybatis.mapper-locations=mapper/*.xml