@Configuration

public class MyBatisConfig {

   @Value("${spring.mybatis.isShowLog}")

   private String isShowLog;

   @Autowired

   private DataSource dataSource;

   @Bean(name = "sqlSessionFactory")

   public SqlSessionFactoryBean sqlSessionFactory(

         ApplicationContext applicationContext) throws Exception {

      SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();

      sessionFactory.setDataSource(dataSource);

      sessionFactory.setPlugins(new Interceptor[] { pageHelper() });

      org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();

      if("true".equalsIgnoreCase(isShowLog)){

         configuration.setLogImpl(StdOutImpl.class);

      }

      sessionFactory.setMapperLocations(applicationContext.getResources("classpath:mapper/*.xml"));

      return sessionFactory;

   }

}