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汕头专业网站建设公司,昆明优化官网服务,wordpress自建表格,专业产品画册设计公司背景 本课题聚焦新能源汽车行业数据零散、市场洞察不足及产业决策缺乏精准数据支撑等痛点#xff0c;设计并实现基于Python的新能源汽车数据分析系统。系统依托Python强大的数据处理与可视化优势#xff0c;整合新能源汽车全产业链数据整合、多维度分析、可视化展示等核心场景…背景本课题聚焦新能源汽车行业数据零散、市场洞察不足及产业决策缺乏精准数据支撑等痛点设计并实现基于Python的新能源汽车数据分析系统。系统依托Python强大的数据处理与可视化优势整合新能源汽车全产业链数据整合、多维度分析、可视化展示等核心场景涵盖车辆销量数据采集与清洗、市场份额分析、用户购车偏好挖掘、续航性能数据分析、充电桩分布与使用效率评估、政策影响分析、销量趋势预测、数据可视化报表生成与导出等功能旨在打破传统新能源汽车行业分析依赖经验判断、数据利用效率低的局限为企业运营及行业决策提供精准的数据支撑。系统核心实现海量产业链数据高效处理、多维度数据可视化呈现、基于算法的市场趋势预判、数据安全管理等功能前端采用响应式设计适配多终端访问后端基于Python生态Pandas、NumPy、Matplotlib、Seaborn、Flask等构建核心架构结合MySQL实现数据存储、Redis优化缓存性能。课题研究不仅为新能源汽车企业、监管部门提供全面、直观的数据洞察工具还为产品优化、政策制定、基建布局提供技术支撑对推动新能源汽车行业数字化、精细化发展提升产业竞争力具有重要实践价值。前言博主介绍✌全网粉丝30W,csdn特邀作者、博客专家、CSDN新星计划导师、Java领域优质创作者,博客之星、掘金/华为云/阿里云/InfoQ等平台优质作者、专注于Java技术领域和学生毕业项目实战,高校老师/讲师/同行交流合作✌主要内容SpringBoot、Vue、SSM、HLMT、Jsp、PHP、Nodejs、Python、爬虫、数据可视化、小程序、安卓app、大数据、物联网、机器学习等设计与开发。文末获取源码联系精彩专栏 推荐订阅2025-2026年最值得选的微信小程序毕业设计选题大全100个热门选题推荐✅2025-2026年最值得选的Java毕业设计选题大全500个热门选题推荐✅Java毕业设计项目精品实战案例《3000套》微信小程序毕业设计项目精品案例《3000套》文末获取源码数据库系统截图开发技术介绍Java项目Java项目前端Vue后端java的ssmspringboot框架数据库mysql前后端分离。Python项目Java项目前端Vue后端Python的flaskDjango框架数据库mysql前后端分离。核心代码packagecom.controller;importjava.text.SimpleDateFormat;importjava.util.ArrayList;importjava.util.Arrays;importjava.util.Calendar;importjava.util.Map;importjava.util.HashMap;importjava.util.Iterator;importjava.util.Date;importjava.util.List;importjavax.servlet.http.HttpServletRequest;importcom.utils.ValidatorUtils;importorg.apache.commons.lang3.StringUtils;importorg.springframework.beans.factory.annotation.Autowired;importorg.springframework.format.annotation.DateTimeFormat;importorg.springframework.web.bind.annotation.PathVariable;importorg.springframework.web.bind.annotation.RequestBody;importorg.springframework.web.bind.annotation.RequestMapping;importorg.springframework.web.bind.annotation.RequestParam;importorg.springframework.web.bind.annotation.RestController;importcom.baomidou.mybatisplus.mapper.EntityWrapper;importcom.baomidou.mybatisplus.mapper.Wrapper;importcom.annotation.IgnoreAuth;importcom.entity.ChatEntity;importcom.entity.view.ChatView;importcom.service.ChatService;importcom.service.TokenService;importcom.utils.PageUtils;importcom.utils.R;importcom.utils.MD5Util;importcom.utils.MPUtil;importcom.utils.CommonUtil;/** * 在线客服 * 后端接口 * author * email * date 2021-03-13 12:49:51 */RestControllerRequestMapping(/chat)publicclassChatController{AutowiredprivateChatServicechatService;/** * 后端列表 */RequestMapping(/page)publicRpage(RequestParamMapString,Objectparams,ChatEntitychat,HttpServletRequestrequest){if(!request.getSession().getAttribute(role).toString().equals(管理员)){chat.setUserid((Long)request.getSession().getAttribute(userId));}EntityWrapperChatEntityewnewEntityWrapperChatEntity();PageUtilspagechatService.queryPage(params,MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew,chat),params),params));returnR.ok().put(data,page);}/** * 前端列表 */RequestMapping(/list)publicRlist(RequestParamMapString,Objectparams,ChatEntitychat,HttpServletRequestrequest){if(!request.getSession().getAttribute(role).toString().equals(管理员)){chat.setUserid((Long)request.getSession().getAttribute(userId));}EntityWrapperChatEntityewnewEntityWrapperChatEntity();PageUtilspagechatService.queryPage(params,MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew,chat),params),params));returnR.ok().put(data,page);}/** * 列表 */RequestMapping(/lists)publicRlist(ChatEntitychat){EntityWrapperChatEntityewnewEntityWrapperChatEntity();ew.allEq(MPUtil.allEQMapPre(chat,chat));returnR.ok().put(data,chatService.selectListView(ew));}/** * 查询 */RequestMapping(/query)publicRquery(ChatEntitychat){EntityWrapperChatEntityewnewEntityWrapperChatEntity();ew.allEq(MPUtil.allEQMapPre(chat,chat));ChatViewchatViewchatService.selectView(ew);returnR.ok(查询在线客服成功).put(data,chatView);}/** * 后端详情 */RequestMapping(/info/{id})publicRinfo(PathVariable(id)Longid){ChatEntitychatchatService.selectById(id);returnR.ok().put(data,chat);}/** * 前端详情 */RequestMapping(/detail/{id})publicRdetail(PathVariable(id)Longid){ChatEntitychatchatService.selectById(id);returnR.ok().put(data,chat);}/** * 后端保存 */RequestMapping(/save)publicRsave(RequestBodyChatEntitychat,HttpServletRequestrequest){chat.setId(newDate().getTime()newDouble(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(chat);if(StringUtils.isNotBlank(chat.getAsk())){chatService.updateForSet(isreply0,newEntityWrapperChatEntity().eq(userid,request.getSession().getAttribute(userId)));chat.setUserid((Long)request.getSession().getAttribute(userId));chat.setIsreply(1);}if(StringUtils.isNotBlank(chat.getReply())){chatService.updateForSet(isreply0,newEntityWrapperChatEntity().eq(userid,chat.getUserid()));chat.setAdminid((Long)request.getSession().getAttribute(userId));}chatService.insert(chat);returnR.ok();}/** * 前端保存 */RequestMapping(/add)publicRadd(RequestBodyChatEntitychat,HttpServletRequestrequest){chat.setId(newDate().getTime()newDouble(Math.floor(Math.random()*1000)).longValue());//ValidatorUtils.validateEntity(chat);chat.setUserid((Long)request.getSession().getAttribute(userId));if(StringUtils.isNotBlank(chat.getAsk())){chatService.updateForSet(isreply0,newEntityWrapperChatEntity().eq(userid,request.getSession().getAttribute(userId)));chat.setUserid((Long)request.getSession().getAttribute(userId));chat.setIsreply(1);}if(StringUtils.isNotBlank(chat.getReply())){chatService.updateForSet(isreply0,newEntityWrapperChatEntity().eq(userid,chat.getUserid()));chat.setAdminid((Long)request.getSession().getAttribute(userId));}chatService.insert(chat);returnR.ok();}/** * 修改 */RequestMapping(/update)publicRupdate(RequestBodyChatEntitychat,HttpServletRequestrequest){//ValidatorUtils.validateEntity(chat);chatService.updateById(chat);//全部更新returnR.ok();}/** * 删除 */RequestMapping(/delete)publicRdelete(RequestBodyLong[]ids){chatService.deleteBatchIds(Arrays.asList(ids));returnR.ok();}/** * 提醒接口 */RequestMapping(/remind/{columnName}/{type})publicRremindCount(PathVariable(columnName)StringcolumnName,HttpServletRequestrequest,PathVariable(type)Stringtype,RequestParamMapString,Objectmap){map.put(column,columnName);map.put(type,type);if(type.equals(2)){SimpleDateFormatsdfnewSimpleDateFormat(yyyy-MM-dd);CalendarcCalendar.getInstance();DateremindStartDatenull;DateremindEndDatenull;if(map.get(remindstart)!null){IntegerremindStartInteger.parseInt(map.get(remindstart).toString());c.setTime(newDate());c.add(Calendar.DAY_OF_MONTH,remindStart);remindStartDatec.getTime();map.put(remindstart,sdf.format(remindStartDate));}if(map.get(remindend)!null){IntegerremindEndInteger.parseInt(map.get(remindend).toString());c.setTime(newDate());c.add(Calendar.DAY_OF_MONTH,remindEnd);remindEndDatec.getTime();map.put(remindend,sdf.format(remindEndDate));}}WrapperChatEntitywrappernewEntityWrapperChatEntity();if(map.get(remindstart)!null){wrapper.ge(columnName,map.get(remindstart));}if(map.get(remindend)!null){wrapper.le(columnName,map.get(remindend));}intcountchatService.selectCount(wrapper);returnR.ok().put(count,count);}}源码获取文章下方名片联系我即可~✌大家点赞、收藏、关注、评论啦 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