dom4j解析xml(兼容任何格式，不指定key)

蔚落 2022-11-22 00:29 95阅读 0赞

public static JSONObject test(String xml) throws DocumentException {
            Document doc = DocumentHelper.parseText(xml);
            Element rootElement = doc.getRootElement();
            Iterator transaction_header = rootElement.elementIterator("Transaction_Header");
            Iterator transaction_body = rootElement.elementIterator("Transaction_Body");
            JSONObject root = new JSONObject();
            parseHeadXml(transaction_header, root);
            parseBodyXml(transaction_body, root);
            return root;
        }
    
        private static void parseHeadXml(Iterator transaction_header, JSONObject root) {
            while (transaction_header.hasNext()) {
                Element element = (Element)transaction_header.next();
                List<Element> elements = element.elements();
                JSONObject json = new JSONObject();
                for (Element el : elements) {
                    String name = el.getName();
                    String text = el.getText();
                    List<Element> innerList = el.elements();
                    if (innerList.size() > 0) {
                        // 第二层循环
                        JSONObject jsonObject = new JSONObject();
                        innerList.forEach(item -> jsonObject.put(item.getName(), item.getText()));
                        json.put(el.getName(),jsonObject);
                    } else {
                        json.put(el.getName(), el.getText());
                    }
                }
                root.put("Transaction_Header",json);
            }
        }
        private static void parseBodyXml(Iterator transaction_body, JSONObject root) {
            while (transaction_body.hasNext()) {
                Element element = (Element)transaction_body.next();
                // response 下面存在数据
                Iterator<Element> response = element.elementIterator("response");
                JSONObject responseJson = new JSONObject();
                while (response.hasNext()) {
                    Element next = response.next();
                    List<Element> elements = next.elements();
                    JSONObject json = new JSONObject();
                    for (Element el : elements) {
                        String name = el.getName();
                        String text = el.getText();
                        List<Element> innerList = el.elements();
                        if (innerList.size() > 0) {
                            // 第二层循环
                            JSONObject jsonObject = new JSONObject();
                            innerList.forEach(item -> jsonObject.put(item.getName(), item.getText()));
                            // 当存在相同key，则设置成数组
                            if (json.containsKey(el.getName())) {
                                Object o = json.get(el.getName());
                                if (o instanceof JSONObject) {
                                    JSONArray array = new JSONArray();
                                    array.add(o);
                                    json.put(el.getName(),array);
                                } else if (o instanceof JSONArray) {
                                    ((JSONArray) o).add(jsonObject);
                                }
                            } else {
                                json.put(el.getName(),jsonObject);
                            }
    
                        } else {
                            json.put(el.getName(), el.getText());
                        }
                    }
                    responseJson.put("response",json);
                }
    
                root.put("Transaction_Body",responseJson);
            }
        }