spring mybatis 如何注入MapperScannerConfigurer及使用Junit测试

1: xml配置

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.xxx.xxx.dao"></property> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean>

2: 在扫描的包下使用 @MapperScan(“com.xxx.xxx.dao”) ,不支持占位表达式

@Configuration @MapperScan("com.xxx.xxx.dao") public class MybatisConfig { }

3: 在扫描的包下使用 @Bean注册MapperScannerConfigurer

@Configuration public class MybatisConfig { @Bean public MapperScannerConfigurer mapperScannerConfigurer() { MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer(); //可使用配置文件引入包名 mapperScannerConfigurer.setBasePackage("com.xxx.xxx.dao"); mapperScannerConfigurer.setSqlSessionFactoryBeanName("sqlSessionFactory"); return mapperScannerConfigurer; } }

Junit测试，locations指定具体的配置文件

@RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = {"classpath:spring-mvc.xml", "classpath:spring-mybatis.xml"}) public class UserServiceTest { @Resource private UserDao userDao; @Test public void test() throws Exception { System.out.println(userDao); } }