SSM實現條件搜索查詢

Controller：

將頁面的數據顯示以及條件搜索功能帶到同一個接口，搜索條件全部封裝在keys中，后面通過Map將數據進行轉化解析

ServiceImpl:

@Override
    public Map<String, Object> getByPage(String keys, int length, int start)
            throws Exception {

        Map<String, Object> map = new HashMap<String, Object>();
        List<CustomsDeclareBill> list = new ArrayList<CustomsDeclareBill>();
        try {

            CustomsDeclareBillExample customs = new CustomsDeclareBillExample();

            //查詢總條數 int total = customsDeclareBillMapper.countByExample(customs);

            Page page = new Page();
            page.setLength(length);
            page.setBegin(start);
            customs.setPage(page);

            //將搜索條件轉換成Map並且傳到數據庫中進行查詢
            Map<String, Object> returnMap = (Map<String, Object>)JSONObject.fromObject(keys);
            returnMap.put("start", start);
            returnMap.put("length", length);

            list = customsDeclareBillMapper.getSelectByPage(returnMap);
           
             //判斷查詢條件是否為空，如果為空，則分頁也為0，返回的數據也為空 if (list.size() == 0) {
                map.put("recordsTotal", 0);
                map.put("recordsFiltered", 0);
                map.put("aaData", list);
            }

            if (list != null && !list.isEmpty()) {
                map.put("recordsTotal", total);
                map.put("recordsFiltered", total);

                // 設置返回的日期格式
                JsonConfig config = new JsonConfig();
                config.setIgnoreDefaultExcludes(false);
                config.registerJsonValueProcessor(Date.class,
                        new DateJsonValueProcessor("yyyy-MM-dd"));
                //將list集合轉換成json數組傳到頁面
                JSONArray array = JSONArray.fromObject(list, config);
                map.put("aaData", array);
            }

        } catch (Exception e) {
            throw new Exception("查詢匹配無結果，分頁異常");
        }

        return map;
    }

Mapper.java:

Mapper.xml:

   前端傳來的日期格式為String類型，這里要轉換格式