在CSDN发一个CSDN系统是什么体验？
大家都知道CSDN 有一个下载的模块，就是用户上传资源然后管理员会进行审核，上传资源的用户可以赚钱还可以赚积分。
那么个人可不可以开发这样的系统呢？
完全可以！
小孟前面就就可开发了一个，而且处理很详细的教程。具体的介绍如下所示：
一，技术简介
该项目非常详细的讲解了springboot，可以用于面试、毕设、学习等。
最新版的springboot2.0框架；
前端框架采用流行的Layui；
redis高性能缓存框架，存放热门数据，常用数据；
thymeleaf模版引擎；
shiro安全框架；
javamail集成，找回密码用到；
数据库连接池使用的是阿里巴巴的Druid；
全文检索lucene；
QQ第三方登录。
二，系统演示
系统不管是界面还是功能都非常的nice，如果想看详细的教程或者演示，也有对系统的本系统的学习
https://www.bilibili.com/video/BV1jJ41197BJ?p=110&vd_source=e64f225fc5daf048d2687502cb23bb3b
三，核心代码展示
/** * 小孟V：jishulearn */ @RestController @RequestMapping(value = "/article") public class ArticleController { @Autowired private ArcTypeService arcTypeService; @Autowired private ArticleService articleService; @Autowired private ArticleIndex articleIndex; /** * 按资源类型分页查询资源列表 * @param type * @param currentPage * @return */ @RequestMapping("/{type}/{currentPage}") public ModelAndView type(@PathVariable(value = "type",required = false) String type, @PathVariable(value = "currentPage",required = false)Integer currentPage){ ModelAndView mav = new ModelAndView(); mav.setViewName("index"); //类型的html代码 List arcTypleList = arcTypeService.listAll(Sort.Direction.ASC,"sort"); mav.addObject("arcTypeStr", HTMLUtil.getArcTypeStr(type,arcTypleList)); //资源列表 Map<String,Object> map = articleService.list(type,currentPage, Consts.PAGE_SIZE); mav.addObject("articleList",map.get("data")); //分页html代码 mav.addObject("pageStr",HTMLUtil.getPagation("/article/"+type,Integer.parseInt(String.valueOf(map.get("count"))),currentPage,"该分类还没有数据...")); return mav; } /** * 关键字分词搜索 */ @RequestMapping("/search") public ModelAndView search(String keywords,@RequestParam(value = "page",required = false) Integer page) throws ParseException, InvalidTokenOffsetsException, org.apache.lucene.queryparser.classic.ParseException, IOException { if(page==null){ page = 1; } ModelAndView mav = new ModelAndView(); mav.setViewName("index"); //类型的html代码 List arcTypleList = arcTypeService.listAll(Sort.Direction.ASC,"sort"); mav.addObject("arcTypeStr", HTMLUtil.getArcTypeStr("all",arcTypleList)); //资源列表 List<Article> articleList = articleIndex.search(keywords); Integer toIndex = articleList.size()>=page*Consts.PAGE_SIZE?page*Consts.PAGE_SIZE:articleList.size(); mav.addObject("articleList",articleList.subList((page-1)*Consts.PAGE_SIZE,toIndex)); mav.addObject("keywords",keywords); //分页html代码 int totalPage = articleList.size()%Consts.PAGE_SIZE==0?articleList.size()/Consts.PAGE_SIZE:articleList.size()/Consts.PAGE_SIZE+1; String targetUrl = "/article/search?keywords="+keywords; String msg = "没有关键字是 \"<font style=\"border: 0px;color:red;font-weight:bold;padding-left: 3px; padding-right: 3px;\" >" +keywords + "</font>\" 的相关资源，请联系站长！"; mav.addObject("pageStr",HTMLUtil.getPagation2(targetUrl,totalPage,page,msg)); return mav; } /** * 资源详情 */ @RequestMapping("/detail/{articleId}") public ModelAndView detail(@PathVariable(value = "articleId",required = false) String articleId) throws IOException, org.apache.lucene.queryparser.classic.ParseException { ModelAndView mav = new ModelAndView(); String replace = articleId.replace(".html",""); articleService.updateClick(Integer.parseInt(replace)); Article article = articleService.getById(Integer.parseInt(replace)); if(article.getState()!=2){ return null; } mav.addObject("article",article); //类型的html代码 List arcTypleList = arcTypeService.listAll(Sort.Direction.ASC,"sort"); mav.addObject("arcTypeStr", HTMLUtil.getArcTypeStr(article.getArcType().getArcTypeId().toString(),arcTypleList)); //通过lucene分词查找相似资源 List<Article> articleList = articleIndex.searchNoHighLighter(article.getName().replace("视频","").replace("教程","") .replace("下载","").replace("PDF","")); if(articleList!=null&&articleList.size()>0){ mav.addObject("similarityArticleList",articleList); } mav.setViewName("detail"); return mav; } /** * 判断资源是否免费 */ @ResponseBody @RequestMapping("/isFree") public boolean isFree(Integer articleId){ Article article = articleService.getById(articleId); return article.isFree(); } }
/** * 小孟V：jishulearn */ @Controller @RequestMapping(value = "/comment") public class CommentController { @Autowired private CommentService commentService; /** * 前端提交保存评论信息 * @param comment * @param session * @return */ @ResponseBody @PostMapping("/add") public Map<String,Object> add(Comment comment, HttpSession session){ Map<String,Object> map = new HashMap<>(); comment.setContent(StringUtil.esc(comment.getContent())); comment.setCommentDate(new Date()); comment.setState(0); comment.setUser((User)session.getAttribute(Consts.CURRENT_USER)); commentService.save(comment); map.put("success",true); return map; } /** * 分页查询某个资源的评论信息 */ @ResponseBody @RequestMapping(value = "/list") public Map<String,Object> list(Comment s_comment, @RequestParam(value = "page",required = false)Integer page){ s_comment.setState(1); Page<Comment> commentPage = commentService.list(s_comment,page,5, Sort.Direction.DESC,"commentDate"); Map<String,Object> map = new HashMap<>(); map.put("data", HTMLUtil.getCommentPageStr(commentPage.getContent())); //评论的HTML代码 map.put("total",commentPage.getTotalPages()); //总页数 return map; } }
/** * 根路径及其他请求处理 */ @Controller public class IndexController { @Autowired private ArcTypeService arcTypeService; @Autowired private ArticleService articleService; @Autowired private UserService userService; @Autowired private MessageService messageService; @Value("${imgFilePath}") private String imgFilePath; //图片上传路径 /** * 首页 */ @RequestMapping("/") public ModelAndView index(){ ModelAndView mav = new ModelAndView(); mav.setViewName("index"); //类型的html代码 List arcTypleList = arcTypeService.listAll(Sort.Direction.ASC,"sort"); mav.addObject("arcTypeStr", HTMLUtil.getArcTypeStr("all",arcTypleList)); //资源列表 Map<String,Object> map = articleService.list("all",1, Consts.PAGE_SIZE); mav.addObject("articleList",map.get("data")); //分页html代码 mav.addObject("pageStr",HTMLUtil.getPagation("/article/all",Integer.parseInt(String.valueOf(map.get("count"))),1,"该分类还没有数据...")); return mav; } /** * QQ登录回调 */ @RequestMapping("/connect") public String qqCallback(HttpServletRequest request, HttpServletResponse response, HttpSession session) throws QQConnectException { response.setContentType("text/html;charset=utf-8"); AccessToken accessTokenObj = new Oauth().getAccessTokenByRequest(request); String accessToken = null; String openId = null; String state = request.getParameter("state"); String session_state = (String) session.getAttribute("qq_connect_state"); if(StringUtil.isEmpty(session_state)||!session_state.equals(state)){ System.out.println("非法请求"); return "redirect:/"; } accessToken = accessTokenObj.getAccessToken(); if(StringUtil.isEmpty(accessToken)){ System.out.println("没有获取到响应参数"); return "redirect:/"; } session.setAttribute("accessToken",accessToken); OpenID openIDObj = new OpenID(accessToken); openId = openIDObj.getUserOpenID(); UserInfo qzoneUserInfo = new UserInfo(accessToken,openId); UserInfoBean userInfoBean = qzoneUserInfo.getUserInfo(); if(userInfoBean==null||userInfoBean.getRet()!=0||StringUtil.isNotEmpty(userInfoBean.getMsg())){ System.out.println("没有对应的qq信息"); return "redirect:/"; } //获取用户成功 User currentUser = (User)session.getAttribute(Consts.CURRENT_USER); if(currentUser!=null&&StringUtil.isNotEmpty(currentUser.getUserName())&&StringUtil.isNotEmpty(currentUser.getEmail())&&StringUtil.isEmpty(currentUser.getOpenId())){ currentUser.setOpenId(openId); userService.save(currentUser); session.setAttribute(Consts.CURRENT_USER,currentUser); return "redirect:/"; } User user = userService.findByOpenId(openId); if(user==null){ //该用户是第一次登录，先注册 user = new User(); user.setOpenId(openId); user.setNickname(userInfoBean.getNickname()); String imgName = DateUtil.getCurrentDateStr()+".jpg"; downloadPicture(userInfoBean.getAvatar().getAvatarURL100(),imgFilePath+imgName); user.setHeadPortrait(imgName); user.setSex(userInfoBean.getGender()); user.setPassword(CryptographyUtil.md5("123456",CryptographyUtil.SALT)); user.setRegistrationDate(new Date()); user.setLatelyLoginTime(new Date()); //userService.save(user); session.setAttribute(Consts.CURRENT_USER,user); }else{ //已经注册过，更新用户信息，直接将信息存入session 然后跳转 if(!user.isOff()){ //非封号状态 user.setNickname(userInfoBean.getNickname()); user.setSex(userInfoBean.getGender()); user.setLatelyLoginTime(new Date()); userService.save(user); Subject subject = SecurityUtils.getSubject(); UsernamePasswordToken token = new UsernamePasswordToken(user.getUserName(),user.getPassword()); subject.login(token); //登录验证 Integer messageCount = messageService.getCountByUserId(user.getUserId()); user.setMessageCount(messageCount); Article s_article = new Article(); s_article.setUseful(false); s_article.setUser(user); session.setAttribute(Consts.UN_USEFUL_ARTICLE_COUNT,articleService.getCount(s_article,null,null,null)); session.setAttribute(Consts.CURRENT_USER,user); } } return "redirect:/"; } /** * 通过链接下载图片保存到头像文件夹 */ private void downloadPicture(String urlString,String path){ URL url = null; DataInputStream dataInputStream = null; FileOutputStream fileOutputStream = null; try { url = new URL(urlString); dataInputStream = new DataInputStream(url.openStream()); fileOutputStream = new FileOutputStream(new File(path)); ByteArrayOutputStream output = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int length; while ((length = dataInputStream.read(buffer))>0){ output.write(buffer,0,length); } fileOutputStream.write(output.toByteArray()); } catch (Exception e) { e.printStackTrace(); }finally { try { dataInputStream.close(); fileOutputStream.close(); } catch (Exception e) { e.printStackTrace(); } } }
