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；

XML 复制代码

<!-- 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

java 复制代码

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

XML 复制代码

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

③：第三步：

配置SqlSessionFactoryBean和MapperScannerConfigurer

XML 复制代码

 <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

java 复制代码

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