Mybatis

基于SpringBoot整合Mybatis

1.导入依赖

    <!--Boot工程父依赖-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.7.RELEASE</version>
    </parent>

    <!--Boot工程打包的时候可以用到-->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>    


	<dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.3</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
    </dependencies>

2.编写配置信息

#数据源配置
spring:
  datasource:
    #springboot集成的mysql驱动版本是8，所以Driver要选cj包
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/ssm_db?useSSL=false&serverTimezone=GMT%2B8&characterEncoding=UTF8&useUnicode=true
    username: root
    password: root
    type: com.alibaba.druid.pool.DruidDataSource

#mybatis配置
mybatis:
  #别名
  type-aliases-package: com.ryan.domain
  #mapper映射文件的路径
  mapper-locations: classpath:mapper/*.xml
  #全局配置
  configuration:
    #开启驼峰映射
    map-underscore-to-camel-case: true

3.引导类标记扫描Mapper接口

//在启动类中指定扫描Mapper接口所在的包，生成代理，注入到容器中
@MapperScan(basePackages = "com.ryan.mapper")