版本一:最基本的Jdbc工具类javapublicclassJdbcUtil{privatestaticStringurl="jdbc:mysql://localhost:3306/db_data_show_5?useSSL=false&serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=UTF8&autoReconnect=true&
简介采用阿里的EasyExcel生成报表添加依赖xml<dependency<groupIdcom.alibaba</groupId<artifactIdeasyexcel</artifactId<version3.0.2</version</dependencyServletjava@WebServlet(urlPatterns="/goods")publicclassGoodsServlete
Servlet层java@WebServlet(urlPatterns="/goods")publicclassGoodsServletextendsHttpServlet{privatestaticfinallongserialVersionUID=4116681024313896922L;privateGoodsServicegoodsService=newGoodsServiceImpl()
Dao层Dao接口javapublicinterfaceGoodsDao{/查询所有的商品@return@throwsSQLException/List<GoodsselectAllGoods()throwsSQLException;/根据id查询商品的详细信息@paramid@return@throwsSQLException/GoodsseelctGoodsById(Integerid)thr
项目源代码下载地址:源代码(https://download.csdn.net/download/lianghecai52171314/36115463)项目介绍采用Echarts,利用Jdbc技术将数据库中的信息以图(柱状图、饼状图)的形式展示出来。项目最终运行结果:!请添加图片描述(https://s4.51cto.com/images/blog/202111/10184141_618ba1e
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