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/** * 前端智能排序 */ @IgnoreAuth @RequestMapping("/autoSort") public R autoSort(@RequestParam Map<String, Object> params,NaichashangpinEntity naichashangpin, HttpServletRequest request,String pre){ EntityWrapper<NaichashangpinEntity> ew = new EntityWrapper<NaichashangpinEntity>(); Map<String, Object> newMap = new HashMap<String, Object>(); Map<String, Object> param = new HashMap<String, Object>(); Iterator<Map.Entry<String, Object>> it = param.entrySet().iterator(); while (it.hasNext()) { Map.Entry<String, Object> entry = it.next(); String key = entry.getKey(); String newKey = entry.getKey(); if (pre.endsWith(".")) { newMap.put(pre + newKey, entry.getValue()); } else if (StringUtils.isEmpty(pre)) { newMap.put(newKey, entry.getValue()); } else { newMap.put(pre + "." + newKey, entry.getValue()); } } params.put("sort", "clicknum"); params.put("order", "desc"); PageUtils page = naichashangpinService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, naichashangpin), params), params)); return R.ok().put("data", page); } /** * 协同算法（按用户购买推荐） */ @RequestMapping("/autoSort2") public R autoSort2(@RequestParam Map<String, Object> params,NaichashangpinEntity naichashangpin, HttpServletRequest request){ String userId = request.getSession().getAttribute("userId").toString(); String goodtypeColumn = "naichafenlei"; List<OrdersEntity> orders = ordersService.selectList(new EntityWrapper<OrdersEntity>().eq("userid", userId).eq("tablename", "naichashangpin").orderBy("addtime", false)); List<String> goodtypes = new ArrayList<String>(); Integer limit = params.get("limit")==null?10:Integer.parseInt(params.get("limit").toString()); List<NaichashangpinEntity> naichashangpinList = new ArrayList<NaichashangpinEntity>(); //去重 List<OrdersEntity> ordersDist = new ArrayList<OrdersEntity>(); for(OrdersEntity o1 : orders) { boolean addFlag = true; for(OrdersEntity o2 : ordersDist) { if(o1.getGoodid()==o2.getGoodid() || o1.getGoodtype().equals(o2.getGoodtype())) { addFlag = false; break; } } if(addFlag) ordersDist.add(o1); } if(ordersDist!=null && ordersDist.size()>0) { for(OrdersEntity o : ordersDist) { naichashangpinList.addAll(naichashangpinService.selectList(new EntityWrapper<NaichashangpinEntity>().eq(goodtypeColumn, o.getGoodtype()))); } } EntityWrapper<NaichashangpinEntity> ew = new EntityWrapper<NaichashangpinEntity>(); params.put("sort", "id"); params.put("order", "desc"); PageUtils page = naichashangpinService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, naichashangpin), params), params)); List<NaichashangpinEntity> pageList = (List<NaichashangpinEntity>)page.getList(); if(naichashangpinList.size()<limit) { int toAddNum = (limit-naichashangpinList.size())<=pageList.size()?(limit-naichashangpinList.size()):pageList.size(); for(NaichashangpinEntity o1 : pageList) { boolean addFlag = true; for(NaichashangpinEntity o2 : naichashangpinList) { if(o1.getId().intValue()==o2.getId().intValue()) { addFlag = false; break; } } if(addFlag) { naichashangpinList.add(o1); if(--toAddNum==0) break; } } } page.setList(naichashangpinList); return R.ok().put("data", page); } ">