freemaker加载自定义变量

Myth丶恋晨 2023-06-30 02:17 3阅读 0赞

freemaker实现自定义变量

public String jsonTranslateHtml(String json, String templateNo, String watermark, FreemakerHandler handler) throws Exception {
        //TODO method 获取fileName Sao
        TemplateDetail templateDetailPO = templateDetailDAO.findByTemplateNo(templateNo);
        String fileName = templateDetailPO.getFileId();
        log.info("================>>fileName:" + fileName);
        String html = null;
        File file = new File(fileName);
        String xml = FileUtils.readFileToString(file, "UTF-8");
        // xml 转 json
        JSONObject obj = XML.toJSONObject(xml);
        String tpJson = obj.toString();
    
        try {
            Map<String, Object> db = (Map<String, Object>) JSON.parse(json);
            Map<String, Object> tp = (Map<String, Object>) JSON.parseObject(tpJson).get("Report");
            JsonReplaceHandle.mapDisplay(db, tp);
            Map<String, Object> root = new HashMap<String, Object>();
            root.put("report", db);
            root.put("watermark", watermark);
            //加载自定义方法
            root.put("emptySplit", new GetEmptySplitMethod());
            root.put("getIndex", new IndexMethod());
            root.put("getSubIndex", new SubIndexMethod());
    
            handler.getConfiguration().setClassicCompatible(true);
            html = handler.convertString("reportMain.ftl", root);
        } catch (Exception e) {
            log.error("错误", e);
            throw new Exception("json转换html失败");
        }
        return html;
    }

class IndexMethod implements TemplateMethodModel {
        private int index = 0;
        String[] indexName = {"一" ,"二" ,"三","四" ,"五","六","七" ,"八" ,"九","十","十一","十二","十三","十四","十五"};
    
        @SuppressWarnings("rawtypes")
        public Object exec(List list) throws TemplateModelException {
            if (index > 14 || 0 < list.size()) {
                throw new TemplateModelException("Wrong arguments: only void argument is allowed or ArrayIndexOutOfBoundsException");
            }
            return indexName[index++];
        }
    }