得到spring容器

得到spring容器

@org.junit.Test
	public void testPageHelper() {
		//创建一个spring容器
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:spring/applicationContext-*.xml");
		//从spring容器中获得Mapper的代理对象
		TbItemMapper mapper = applicationContext.getBean(TbItemMapper.class);
		//执行查询，并分页
		TbItemExample example = new TbItemExample();
		//分页处理
		PageHelper.startPage(2, 10);
		List list = mapper.selectByExample(example);
		//取商品列表
		for (TbItem tbItem : list) {
			System.out.println(tbItem.getTitle());
		}
		//取分页信息
		PageInfo pageInfo = new PageInfo<>(list);
		long total = pageInfo.getTotal();
		System.out.println("共有商品："+ total);
		
	}