Spring xml 方式整合mybatis 第三方框架

Spring整合MyBatis

MyBatis提供了mybatis-spring.jar专门用于两大框架的整合。

①：第一步：

导入MyBatis整合Spring的相关坐标；

<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>3.0.0</version>
</dependency><!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>5.3.29</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.2.18</version>
</dependency>

②：第二步：

编写Mapper和Mapper.xml

public interface UserMapper {List<User> queryList();
}

<mapper namespace="com.hu.mapper.UserMapper"><select id="queryList" >select * from user</select>
</mapper>

③：第三步：

配置SqlSessionFactoryBean和MapperScannerConfigurer

 <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"><property name="driverClassName" value="com.mysql.cj.jdbc.Driver"></property><property name="url" value="jdbc:mysql://localhost:3306/test"></property><property name="username" value="root"></property><property name="password" value="123456"></property></bean>
<!--将sqlsession对象配置到spring容器中--><bean class="org.mybatis.spring.SqlSessionFactoryBean"><!--想连接数据 需要配置datasoure数据源  注入数据源--><property name="dataSource" ref="dataSource"></property></bean><!--将com.hu.mapper下面xml配置文件生成的对象放到spring容器中--><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.hu.mapper"/></bean><!--将service对象注入到spring中--><bean id="userService" class="com.hu.service.impl.UserServiceImpl" ><property name="userMapper" ref="userMapper"></property></bean>

④：第四步：

编写测试代码

   public void test02(){ApplicationContext applicationContext=new ClassPathXmlApplicationContext("spring.xml");UserServiceImpl userService = applicationContext.getBean("userService", UserServiceImpl.class);userService.getUserList();}