【2024】基于springboot的乡村旅游小程序设计与实现（源码+文档+指导）

/**
     * 前端智能排序
     */
	@IgnoreAuth
    @RequestMapping("/autoSort")
    public R autoSort(@RequestParam Map params,NaichashangpinEntity naichashangpin, HttpServletRequest request,String pre){
        EntityWrapper ew = new EntityWrapper();
        Map newMap = new HashMap();
        Map param = new HashMap();
		Iterator it = param.entrySet().iterator();
		while (it.hasNext()) {
			Map.Entry 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 params,NaichashangpinEntity naichashangpin, HttpServletRequest request){
    	String userId = request.getSession().getAttribute("userId").toString();
    	String goodtypeColumn = "naichafenlei";
    	List orders = ordersService.selectList(new EntityWrapper().eq("userid", userId).eq("tablename", "naichashangpin").orderBy("addtime", false));
        List goodtypes = new ArrayList();
    	Integer limit = params.get("limit")==null?10:Integer.parseInt(params.get("limit").toString());
    	List naichashangpinList = new ArrayList();
	//去重
    	List ordersDist = new ArrayList();
    	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().eq(goodtypeColumn, o.getGoodtype())));
        	}
        }
    	EntityWrapper ew = new EntityWrapper();
	params.put("sort", "id");
	params.put("order", "desc");
	PageUtils page = naichashangpinService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, naichashangpin), params), params));
        List pageList = (List)page.getList();
        if(naichashangpinList.size()