mybatis和spring简单整合(dao/mapper)

1、导包mybatis-spring-1.3.2.jar

http://repo2.maven.org/maven2/org/mybatis/mybatis-spring/1.3.2/

2、在web.xml引入spring配置文件

<!-- 引入spring其它配置文件 -->
<context-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>classpath:applicationContext-*.xml</param-value>
</context-param>
<listener>
   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

3、在根目录src下创建xml文件applicationContext-dao.xml

<!--     引入数据库参数文件 -->
<context:property-placeholder location=" classpath:resources/database.properties"/>

配置数据源

<!--    spring数据库源 -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
   <property name="driverClassName">
      <value>com.mysql.jdbc.Driver</value>
   </property>
   <property name="url">
      <value>${jdbc.url}</value>
   </property>
   <property name="username">
      <value>${jdbc.username}</value>
   </property>
   <property name="password">
      <value>${jdbc.password}</value>
   </property>
</bean>

配置sqlSessionFactory

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
   <!-- 数据库源 -->
   <property name="dataSource" ref="dataSource"/>
   <!-- mybatis配置文件 -->
   <property name="configLocation" value="classpath:/resources/mybatis-config2.xml"/>
</bean>

配置dao/mapper扫描器

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
   <!--   扫描需要注入所依赖的dao -->
   <property name="basePackage" value="com.cyh.easydriver.modules.sys.dao"/>
   <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>

4、修改mybatis的配置文件mybatis-config.xml

以及用spring配置了数据库源了，所以去掉<environments></environments>

5、注解和注入

@Service
public interface UserService { public void test(); }

@Service
public class UserServiceImpl implements UserService{

    @Autowired
    private UserDao userDao;

    public void test(){
        User user = userDao.selectOneByName("hello");
    }
}