怎么整合spring和mybatis

整合Spring和MyBatis的步骤如下：

1. 在pom.xml文件中添加Spring和MyBatis的依赖项。

   <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-jdbc</artifactId>
       <version>5.2.0.RELEASE</version>
   </dependency>
   <dependency>
       <groupId>org.mybatis</groupId>
       <artifactId>mybatis</artifactId>
       <version>3.5.3</version>
   </dependency>
   <dependency>
       <groupId>org.mybatis</groupId>
       <artifactId>mybatis-spring</artifactId>
       <version>2.0.4</version>
   </dependency>

2. 创建数据源和SessionFactory

在Spring配置文件中，需要配置数据源和SessionFactory。

   <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
       <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
       <property name="url" value="jdbc:mysql://localhost:3306/test?useSSL=false&amp;useUnicode=true&amp;characterEncoding=UTF-8"/>
       <property name="username" value="root"/>
       <property name="password" value="password"/>
   </bean>
   
   <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
       <property name="dataSource" ref="dataSource"/>
       <property name="configLocation" value="classpath:mybatis-config.xml"/>
       <property name="mapperLocations" value="classpath*:com/example/mapper/*.xml"/>
   </bean>

3. 配置MapperScannerConfigurer

   <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
       <property name="basePackage" value="com.example.mapper"/>
   </bean>

4. 在Mapper接口上添加@Mapper注解

   @Mapper
   public interface UserMapper {
       // ...
   }

5. 进行测试

   @RunWith(SpringJUnit4ClassRunner.class)
   @ContextConfiguration(locations = {"classpath:spring-config.xml"})
   public class UserMapperTest {
   
       @Autowired
       private UserMapper userMapper;
   
       @Test
       public void testFindAll() {
           List<User> userList = userMapper.findAll();
           Assert.assertEquals(3, userList.size());
       }
   }

以上就是整合Spring和MyBatis的基本步骤。