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整合Spring和MyBatis的源码可以分为以下几个步骤:
- 添加MyBatis和Spring的依赖:在项目的pom.xml文件中添加MyBatis和Spring的依赖,例如:
<dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.5.7</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>2.0.5</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.3.8</version> </dependency>
- 配置MyBatis的SqlSessionFactoryBean:在Spring的配置文件中配置MyBatis的SqlSessionFactoryBean,例如:
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="mapperLocations" value="classpath:mapper/*.xml" /> </bean>
- 配置MyBatis的MapperScannerConfigurer:在Spring的配置文件中配置MyBatis的MapperScannerConfigurer,例如:
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.example.mapper" /> </bean>
- 编写Mapper接口和映射文件:编写Mapper接口和对应的映射文件,例如:
public interface UserMapper { User getUserById(Long id); } <!-- UserMapper.xml --> <mapper namespace="com.example.mapper.UserMapper"> <select id="getUserById" resultType="com.example.model.User"> SELECT * FROM user WHERE id = #{id} </select> </mapper>
- 在Service中注入Mapper接口:在Service中注入Mapper接口并调用其方法,例如:
@Service public class UserService { @Autowired private UserMapper userMapper; public User getUserById(Long id) { return userMapper.getUserById(id); } }
通过以上步骤,就可以实现Spring和MyBatis的整合,实现数据访问功能。