weixin_38441454的博客

在springboot工程中，我们通过零配置的方式，配置了SqlSessionFactory@Beanpublic SqlSessionFactory sqlSessionFactory(DataSource dataSource) throws Exception { SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean(); //设置数据源 sqlSessi

一级缓存：先看一个示例：@Testpublic void test (){ SqlSession sqlSession= sqlSessionFactory.openSession(); GmGoodsMapper gmGoodsMapper = sqlSession.getMapper(GmGoodsMapper.class); System.out.println("==============第一次查询==================");