spring怎么整合mybatis源码

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猴君
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整合Spring和MyBatis的源码可以分为以下几个步骤:

  1. 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> 
  1. 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> 
  1. 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> 
  1. 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> 
  1. 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。

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